IRRI Annual Report 2000-2001
IRRI Annual Report 2000-2001
IRRI Annual Report 2000-2001
Our goal To improve the well-being of present and future generations of rice farmers and consumers, particularly those with low incomes. Our objectives To generate and disseminate rice-related knowledge and technology of short- and long-term environmental, social, and economic benefit and to help enhance national rice research and extension systems. Our strategy We pursue our goal and objectives through interdisciplinary ecosystem-based programs in major rice environments scientific strength from discipline-based divisions anticipatory research initiatives exploring new scientific opportunities conservation and responsible use of natural resources sharing of germplasm, technologies, and knowledge participation of women in research and development partnership with farming communities, research institutions, and other organizations that share our goal Our values Our actions are guided by a commitment to excellence scientific integrity and accountability innovation and creativity diversity of opinion and approach teamwork and partnership service to clients cultural diversity gender consciousness indigenous knowledge environmental protection
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Rice Research:
Early in 2000, IRRI undertook a landmark revision of its research program. The aim was to refocus our scientific efforts on a broad range of new imperatives. More than ever before, there is a need to conserve natural resources in the face of continuing population growth and the inevitable intensification of rice production. But, as vital as this job is, IRRIs commitment to the alleviation of poverty remains unchanged. It is therefore fortuitous that the biological sciences are providing an attractive array of new research opportunities. In this new environment, IRRI needs, first of all, to focus on those research opportunities that offer a real chance of tangible impact rather than those that do not. And fast-tracking that impact means that IRRI must also bridge the gap between research and extension. Guided by these issues, the Institutes research activities have been restructured into just 12 projects, grouped within four programs: enhancing productivity and sustainability of favorable environments; improving productivity and livelihood for fragile environments; strengthening linkages between research and development; and genetic resources conservation, evaluation, and gene discovery. Our research effort will be guided by two principles: we will concentrate on product development and delivery, rather than simply talking about it, and we will mobilize all our efforts and innovative approaches toward achieving impact. We must secure what I call IRRIs heartland, that is, the International Rice Genebank and its deposits of germplasm, held in trust for future generations. The unfettered exchange of germplasm and information between the Genebank and rice scientists around the world must be maintained. In this, as in our entire research program, we must strive to maximize the benefits of our partnership and collaboration with national agricultural research and extension systems. The time has also come for IRRI to transfer the knowledge and management tactics it has developed for intensive irrigated rice-growing systems to the rainfed lowland and upland ecosystems. This is clearly where we can most effectively have an impact on the livelihoods of the poorest rice farmers and consumers. One of our first priorities will be the development of aerobic rice, which will not need standing water in order to grow. It will mark a fundamental change to rice cultivation within the rainfed and upland environments. Our goal is to have the plant varieties ready, together with crop management systems, within five to seven years. Functional genomics and gene discovery are new sciences that are already driving rice-breeding programs. IRRI must not only be a prominent player in the search for new genetic information, it must also continue to develop an international public platform from which the resources and tools of these new sciences will remain freely accessible to all rice researchers. We will also continue our very promising development of nutritionally enriched rice, dense in micronutrients and high in protein. Indeed, the eyes of the world are watching closely our efforts to produce rice rich in beta-carotene, the precursor of vitamin A. To confront the challenges of the 21st century, IRRIs researchers will, more than ever before, study socioeconomic and environmental issues. We will make mediumand long-term projections of rice demand and supply, and assess changes in socioeconomic conditions and policies. These changes will give IRRI a head start in the continuing race to improve the lives of billions of rice farmers and consumers. We will strive to succeed through scientific teamwork, innovation, efficiency, and strong, harmonious relationships with our research partners around the world.
Golden Rice:
Back to Basics
The first job is to investigate the safety and efficacy of golden rice. In charge of the pioneering project is IRRIs chief plant biotechnologist, Dr. Swapan K. Datta. Although his work involves stateof-the-art genetic engineering, his first step involved a return to a basic understanding of the relationship between plants and their natural environment. From hundreds of popular, high-yielding indica rice varieties, he had to select the first candidates for genetic transformation. We dont choose these plants randomly, with nothing more in mind than a successful transfer of genes, Dr. Datta explains. These must be popular and successful plants within particular environments, plants with which we are totally familiar, plants that we understand in totality. The first move was to identify those parts of Asia most in need of a vitamin A dietary boost. Then local plant breeders were asked to help. One plant that we have chosen is BR29, from Bangladesh. It has good cooking quality and moderate disease and pest resistance, and it is well and truly adapted to its environment. The farmers are happy with it, the market is happy with it, consumers are happy with it. We, and our counterparts in Bangladesh, know this plant through and through. All we have to do is engineer BR29 with the beta-carotene pathway and, since we are totally familiar with the original plant, we will be able to quickly but thoroughly analyze the outcome of the genetic modification, and make sure nothing else has changed. We wont have to worry about pest and disease resistance, grain flavor, acceptability, or anything like that. Dr. Datta points out that biotechnology research is, in many respects, the same as any other field of plant science, in that it demands a thorough understanding of both the living raw material and its relationship with the natural, social, and commercial environments in which it is grown. As well as Bangladesh, the search for candidate plants has centered on
Vietnam, India, the Philippines, and Mozambique in East Africa. Between six and ten varieties will be chosen for the first batch. We have a fundamental responsibility, Dr. Datta says. We must be absolutely sure of the food safety and biosafety of the plants we produce. For each of the varieties chosen for transformation, large numbers of different lines will be engineered. Some may be unhealthy, others may not produce enough seed, some may not produce enough beta-carotene, but some will have the desired characteristics. When acceptable plants have been developed, they will be released to the national agricultural research and extension systems in their countries of origin so that they can proceed with their own analyses.
Drs. Karabi Datta, Swapan Datta, Ingo Potrykus, and Peter Beyer.
licenses from Syngenta Seeds AG, Syngenta Ltd., Bayer AG, Monsanto Company Inc., Orynova BV, and Zeneca Mogen BV. Each company granted, free of charge, the use of technology employed in the research that led to the original invention, with the intention that golden rice should ultimately benefit poorer developing countries. A humanitarian board, composed of several public- and private-sector organizations, has also been formed to help expedite the introduction of golden rice to developing countries. One of its seven members is IRRIs deputy director general for partnerships, Dr. William Padolina.
Greater Significance
The trial is expected to be an event with far greater implications than earlier efforts to prove that the iron in IR68144 can be absorbed and used by the human body. Several of IRRIs sister agricultural centers are also developing staple foods rich in micronutrients, such as wheat, maize, and cassava, and the trial of IR68144 is being widely regarded as an attempt to prove the concept that staple foods enriched with micronutrients directly benefit human nutrition. If the trial establishes that proof, researchers will have convincing support for their claims for urgent funding. The trial of IR68144 is now part of a larger initiative by the Consultative Group on International Agricultural Research, the U.S.-based organization responsible for funding IRRI and 15 other such research centers around the world. It is being coordinated by IFPRI and is funded by the Asian Development Bank, with additional support from Denmark and Canada. IRRIs main involvement is growing and milling the trial quantity of IR68144, as well as supplying a similar quantity of a control rice with normal iron and zinc levels. The first attempt to grow sufficient rice for the big trial ended in disarray after two typhoons in 2000. Only 16 tons of the iron-rich grain were harvested and a further four hectares had to be planted in 2001. The rice will be milled at IRRI to avoid possible damage through overmilling and contamination. In the trial, about half of the 300 sisters will be fed IR68144 and the rest will eat normal rice for up to nine months. The sisters, who are 20 to 35 years old, are particularly suitable for the experiment because of their disciplined lifestyle and modest diet, which normally leaves them slightly anemic. A team of workers, including nutritionists, is being trained to supervise the preparation of the sisters food during the trial. Each location will be linked with networking computers and new utensils will be supplied to the convent kitchens.
Dr. Ronald Cantrell, IRRIs director general, speaking to a conference of the Asia-Pacific Association of Agricultural Research Institutions at Chiang Rai, Thailand, 8 November 2000
soil
Rice-growing soils are arguably among the worlds most vital natural resources. Certainly, flooded rice ecosystems are among the most sustainable uses of agricultural land on Earth. A long-term experiment at IRRIs headquarters in the Philippines has delivered 111 crops of rice over 37 years of continuous production, and three crops every year still yield a total of ten tons per hectare. Yet the crops get no nitrogenous fertilizer and, despite the removal of crop residues, there has been no decline in soil organic matter, nor has there been any change in the ability of the soil to deliver nitrogen to the crops. The future, however, has big demands for rice producers and they, in turn, will make extraordinary demands on their soil. In many parts of Asia, rice production has already intensified to the stage where scientists are worried about the ability of the soil to meet further demands. Without nitrogenous fertilizers, yields are grossly insufficient to meet food needs, so nutrient inputs are essential. But theres increasing scientific evidence that excessive or ill-managed applications of nitrogenous fertilizer both enhance soilborne rice diseases and increase the plants use of other soil nutrients. Under these conditions, the soil is mined for its nutrients and loses its ability to sustain heavy cropping. Diversification of farming, by rotating flooded rice with dryland crops, may also cause problems. Extended periods of drying may lead to reductions in soil organic matter and harm the ability of the soil to supply nutrients. Soil scientists are well on the way to understanding the hugely complex processes at work in rice-growing soils. Their evidence suggests that rice farmers of the future will need a far greater technical knowledge if theyre to manage their most important resourcethe soilso that it nourishes intensive cropping without being irreversibly damaged in the process.
Bicol, Philippines
We decided to try some land leveling, strictly behind closed doors at the start, on a 2.5-hectare block, Mr. Rickman explains. We used tractors with back blades to level half of the block. The rest we left alone. We found that we doubled our yield on the leveled area and had better water control and better weed control. What we didnt realize was that farmers were looking over the fence. Very soon we were getting direct requests that we go and level their fields, so we decided that wed better get the right equipment. We built a 2.2-meter leveling bucket to tow behind a tractor in the driveway of my home in Phnom Penh. It was the only place where we could get enough electricity to run a decent-sized welder. Then, out of the blue, I received a telephone call at 11:30 one night from an American company called Spectra Precision. They manufactured laserleveling equipment and wanted to be part of what we were doing. I told them when we were starting and said, If you want to be on board, Ill see you there. At the start of the next dry season, Joe McNamara from Spectra arrived in Phnom Penh with a collection of untested equipment; the untried steel bucket was hooked up to a tractor, and a group of Khmer farm workers undertook a high-technology land-leveling exercise. Just 12 months earlier, the only thing some of these operators had driven was a bullock, Mr. Rickman says, but they learned quickly, and the equipment worked really well. So we then made an additional machine out of an old disc plow to repair and build the bunds around our freshly leveled fields. Then we put the tractor and the equipment on a truck and went out into the provinces. We found farmers willing to participate, and leveled one hectare of their land. Then, by way of a demonstration as well as an experiment, we took over half of that hectare and managed it, and its rice crop, to the best of our ability. In the first year, we did about 40 fields like this, in four provinces. Since
then, on-farm demonstrations have spread to more than 120 fields in 13 provinces. All of a sudden, with all this new technology, yields were increasing by at least 30 percent and, in some cases, as much as 50 percent. Farmers were clamoring for their fields to be leveled; private companies were eager to get into the land-leveling business. Then, we were accused of bringing in equipment that the farmers couldnt afford, Mr. Rickman says. We were still using the laser equipment because it was fast. So we had to rethink. We decided to set aside the new technology and train extension officers and farmers to level their fields using the equipment available to them. We taught them how to use walking tractors, oxen, and even buffaloes to level their fields, and we used garden hoses to monitor levels in the field. The deal was that we would teach them how to do it if they agreed to then go out and level at least one field in their district as a demonstration to others. Some of them went beyond that. Theyve now become trainers in their own right. Mr. Rickmans group also organized field days and farm walks to demonstrate the leveling technology. Its difficult to say how much the leveling technology has meant to Cambodias farmers on its own, Mr. Rickman says. In the fields we monitored, we reduced water use by about 10 percent and reduced weed pressure by about 40 percent. Farmers have found that they can now use direct seeding more effectively, and their crops mature more evenly. Further studies on newly leveled fields found that rice yields increased by 15 percent as a consequence of the leveling, and by another 15 percent if fertilizer was applied. Joe Rickman became the head of IRRIs Agricultural Engineering Unit in the Philippines in 2001. However, theres no stopping his land-leveling technology. With IRRIs support, Thai and Indian farmers are now being taught how to level their fields.
In the past, national agricultural research and extension systems (NARES) have tended to select salinity-tolerant varieties for release by averaging their performance over a range of saline soils, Dr. Gregorio says. This has worked for a few farmers where the plants were able to adapt to the soil conditions, but its failed for the rest. A lot of people out there dont recognize the difference between salinity and alkalinity, much less the other differences. So we realized the need for a large range of plants capable of adapting to diverse soil conditions. What weve come up with is almost site-specific breeding. IRRIs plant breeders began by developing a large number of plants whose genetic salinity tolerance has been proven by molecular-assisted selection. They are the raw material for the new approach, and the coastal wetlands of Bangladesh are the trial ground. The project involves two procedures: farmer participatory variety selection and farmer participatory plant breeding. In the first, a collection of salinitytolerant varieties will be grown under different soil conditions by local farmers themselves and they will be asked to select varieties according to their performance on soils similar to their own. The chosen varieties will then be grown in national trials prior to release. The second procedure is more radical. About 15 farmers, each with one hectare of land or less, have been chosen as the first farmer-breeders. Because theyre poor and the experiment will use a large plot of their land, deals have been made to guarantee their normal domestic rice supplies. In the first season, each farmer will receive seeds for as many as 20,000 different plants, to cover the widest possible range of adaptability. These plants will be traditionally bred crosses between salinity-tolerant varieties and popular high-yielding varieties. They will have undergone screening for salinity tolerance using molecular markers and advanced through six generations to ensure their genetic stability.
The farmers will be asked to watch carefully how the plants compete with weeds, how they develop and yield under their normal management practices, and how the grain suits their tastes. Theyll be asked to identify the best plants in the crop, perhaps as many as 100 plants. Researchers will then help the farmers gather seed from their selected plants and, in the following season, one row of seed from each selected plant will be grown in the same field. Once more, the farmers will watch carefully and select only the best rows, cutting the short-listed varieties down to about ten. Seed will once more be collected from the chosen rows and, finally, the farmers themselves will plant these seeds in plots, using their own procedures and systems. At the end of the third season, they will select the best plot and that variety will thereafter be theirs to grow. The farmers will choose the variety that most successfully adapts to the specific conditions of their individual farms. We expect the technology to spread rapidly because the farmers themselves will be involved; they will regard their chosen varieties as their own, Dr. Gregorio says. But I dont expect it to be easy. We will have to teach them to be brutal in their assessment of the plants. They must learn to discard the good ones and keep only the best. Its also going to be difficult for us, as plant breeders, to accept a different way of doing things, he adds. Its not all science any more. Weve got to learn to work with the farmers, to spend time with them, to use their language, and to listen to what they say. Watching the procedure with great interest will be scientists from NARES in India, Thailand, Indonesia, and Sri Lanka. These are the countries most in need of successful salinity-tolerant rice varieties.
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is also balanced nutrient management, and thats the most complex measure. Under the precision-farming system, farmers are taught field-specific nutrient management. They learn how to test their fields themselves for levels of the nutrients nitrogen, potassium, and phosphorus. Then, according to what they find, they apply enough potassium and phosphorus to avoid its depletion by another crop, and apply nitrogen throughout the growth of the crop according to the demand of the plants. This demand is measured by using leaf color charts that indicate the nitrogen level in the leaves of the plants. When the leaves turn a little yellow, they need more nitrogen. The research teams have also conducted successful experiments with deep placement of nitrogen fertilizer tablets or briquettes, and with controlled-release fertilizers. Theyve concluded that both procedures are capable of reducing farmers applications of nitrogenous fertilizer by up to 30 percent.
comfortably with the soil conditions needed by the following wheat crop. Dr. Ladha acknowledges that poor farmers with low productivity will find it hard to adopt the new knowledgeintensive technologies over the coming ten years. But these are the kind of people who need more of our help. Theyve been overlooked in the past. In Nepal, for instance, with good technical support, they can easily double their rice production. Conclusions to date suggest that, by adopting field-specific nutrient management practices, farmers can increase their income by US$35 per hectare per crop in the first year, but by $50 per hectare per crop in the second year. Precision technologies that conserve resources have an enormous potential for increasing yields and nutrient efficiency in rice cultivation, Dr. Ladha says. Whats more, productivity improves over time, due to both a learning effect and a gradual improvement in soil fertility. The research team is continuing its intensive monitoring of the rice-wheat ecosystem, further refining its understanding of soil, water, and nutrient processes, and continuing to fine-tune its advice to farmers on nutrient levels in various soils and the measures necessary to make continued intensive cultivation sustainable.
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water
Asia produces more than 530 million tons of rice every year. To produce just one ton of it requires between two and three Olympic-sized swimming pools full of water. Nearly 90 percent of fresh water diverted for human use in Asia goes to agriculture and, of this, more than 50 percent is used to irrigate rice. Chinas mighty Yellow River, which flows 4,600 kilometers through some of Asias richest farmland, has run dry nearly every year since 1972. Such is the demand on its water that, in 1997, its final 600 kilometers were dry for more than four months. In India, the Ganges and Indus rivers have virtually no outflow to the sea in the dry season, and inland, in the intensively cultivated states of Punjab and Haryana, groundwater tables fall about 70 centimeters per year. Among them, China, India, and Pakistan have 120 million hectares of irrigated farmland upon which they depend for about half their domestic food production. Yet salinization has already damaged up to 17 percent of it, through mismanagement of irrigation projects. Salinization, the process by which salts accumulate in soil and make it unsuitable for most crops, is spreading worldwide at a rate of two million hectares per year. Agriculture faces increasing competition from cities and industry for available water supplies. Yet rice production, the most water-intensive of all agricultural systems, needs to keep pace with population growth. Helping rice farmers to become more efficient users of water is a major issue now influencing much of IRRIs research.
Guilin, China
Upstream farmers in the irrigation system waste a lot of water, even though they know others downstream will go without as a consequence, he says. The water system management has spent a lot of energy trying to make them more responsible in their use of water. But this has not worked. Dr. Bouman says that economists have been advising for some years that efficient use will come only when a price is attached to water supplies. However, rather than stepping into what he acknowledges is the sensitive area of charging for irrigation water, Dr. Boumans team is investigating a different approach. It begins with the questions, Where does the water go after wasteful farmers have spilled it? And how can it be recovered and used again? Although conventional water-saving approaches tend to concentrate on preventing water loss from canal systems and convincing farmers of the need for greater efficiency, the IRRI team has begun mapping water flows beneath the surface and listing the options available for intervention in water systems to control or avoid wastefulness and recover spilled water. As well as saving water at the field level, were trying to reuse water efficiently, Dr. Bouman explains. If water lost in the fields seeps in a certain direction, or into a river, can we pump it back again and use it elsewhere? Can irrigation systems bypass wasteful users? Of additional interest is the fact that the irrigation system in which theyre working is currently being expanded from 100,000 to 120,000 hectares. Two new dams and an infrastructure of tunnels and canals will soon see it serving more than 50,000 families in Central Luzon. There is a problem common to most large irrigation systems, Dr. Bouman says. Technical options are considered by engineers at the design stage, the project is built and delivered, and thereafter it receives little or no maintenance. Physical deterioration seems not to be considered.
We want to list all possible options for interventions that will make for more efficient use of water across an entire irrigation system. Meanwhile, the team has not relaxed in its job of helping individual farmers to become more efficient. A considerable number of farmers in this project have bought pumps to deliver additional water from ground wells or drainage canals, Dr. Bouman says. They pay to run their pumps, and theyre very careful about their water use. There are also groups that use a communal pump. Theyre also very careful. These are the people we want to helpthe farmers who have to make conscious decisions on when and how to use irrigation water most efficiently. Dr. Bouman says that, rather than trying to enforce rules and restrictions on the use of freely delivered irrigation water, system managers should be considering handing over parts of an irrigation system to groups of farmers, and allowing them to become selfregulatory.
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The project has begun quickly, by studying aerobic varieties developed in northern China and Brazil. These were developed for subtropical and temperate climates, so the early aim is to test their adaptability to the tropics. Theyre being grown experimentally in China and the Philippines and will soon be grown in India, where water shortages are becoming a serious problem. Meanwhile, IRRIs plant breeders are working with many other rice varieties, selecting those that exhibit different reactions to drought, soil quality, and environmental conditions. We already have upland rice varieties that can withstand drought, but theyre low yielders and they dont respond to fertilizer inputs, says water management engineer Dr. To Phuc Tuong. Our aerobic rice must be able to withstand dry soil, respond to irrigation and to fertilizers, and deliver a high yield. Another big problem is weeds. Normally, theyre suppressed by flooding, but on dry land rice can easily lose the battle for dominance. So the working group expects weed tolerance to be a big issue. But these problems may fade into insignificance alongside yield collapse. In experimental dryland rice crops grown to date, the harvest is good in the first season but drops by about 20 percent in the second and may fall a further 70 percent in the third. Thereafter, plants dont develop properly, grow enough tillers, or set grain. Nobody knows why this happens, much less has an inkling of how it can be overcome. Yield collapse doesnt occur when rice is rotated with other crops. This is how aerobic rice continues to play an important role in Brazil, where it is grown commercially under irrigation on 250,000 hectares. But IRRI plant physiologist Dr.
Renee Lafitte, who is a member of the Aerobic Rice Working Group, believes that yield collapse may be a fundamental obstacle to the development of aerobic rice as a permanent, intensive crop. Its not simply a matter of finding the correct germplasm for new varieties that will be free of yield collapse, she points out. I believe its a problem of the agricultural system in which these plants are grown. Dr. Lafitte says that among the areas that might benefit most from the development of aerobic rice is eastern India, where seven million hectares are devoted to annual crops of upland, or dry, rice. In this area, farmers who grow nothing but rice cant achieve harvests better than one ton per hectare, no matter how they try to improve their productivity. I believe that these low yields are actually a situation of yield collapse, and we should begin our efforts to develop aerobic rice by investigating what is happening in eastern India, she adds. In another example, farmers in Mindanao, in the Philippines, were given a new upland variety to replace lowyielding local varieties. Many enthusiastically adopted the new variety in the first few years, and their yields grew, in some cases fourfold. Then, suddenly, they abandoned the new variety, reverting to the old ones. When asked why, they said the new variety had broken down. This, Dr. Lafitte believes, was yield collapse. In some cases, she continues, there were buildups of microscopic worms called nematodes in the soil that may explain the yield collapse. But we also see the same yield reductions in fields with no nematode problem. In situations where rice is grown in rotation with other crops, the problem doesnt seem to exist. So, do we need some kind of insistence upon farmers rotating their crops?
Dr. Lafitte says that her work at the border of plant breeding will include intensive studies of the rice plant itself. Water shortages are going to become a major issue in the future, she says. So we need to know what it is about the physiology of the rice plant that makes it demand so much water, and what it is that makes it so sensitive to fluctuations in water supply. The imminent need for rice farmers to save water has already led to trials involving a variety of irrigation regimes and seeding techniques. Dr. Tuong says that one technique practiced in China as an alternative to permanent flooding of rice fields involves flooding to five centimeters in depth every few days and allowing the water to recede before the next flooding. He says that conventional rice yields do not suffer under this method, and the crop uses 10 to 20 percent less water. But aerobic rice is another thing altogether. One of the first tasks facing the working group is a geographic one. The researchers are mapping the areas where they believe their aerobic rice should be grown. Obviously, well target areas with water scarcity first, places such as northern China and some parts of India, Dr. Tuong explains. But think of the Philippines, for instance. The dry season has only enough water to grow rice on half of the irrigated land. With aerobic rice, we could encourage farmers to make better use of their land and produce more food. If there is no need to flood fields, the benefits will not end with a savings in water. There will be much less effect on the environment. Water percolation from traditional flooded rice fields raises the groundwater table and can create salinity problems. If rice is grown in dry soil, much less percolation will occur.
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Whats worse, those weeds that do best in shallow water or puddled soil are far and away the most competitive. Dr. Hill says that IRRIs weed project team is trying to overcome the disadvantages of direct seeding by exploiting the life habits of the weeds themselves, and by learning to regain control over unwanted species by flooding the fields at different times. Trials with early flooding, within three to seven days after seeding, found that, although the water favored the rice crop and reduced the number of surviving weeds, it also reduced the number of surviving rice plants. It may seem that just a few days wouldnt make much difference, but earlier flooding has a huge influence on the types of weeds that survive. Thats why it will be critical, when developing new rice varieties, to look for very early tolerance of submergence, Dr. Hill says. He believes that, in creating new high-yielding rice varieties, plant breeders have unwittingly lost some of the plants capacity to compete against weeds. His teams first task will be to begin studying the nature of plant competitiveness. What is it that helps plants to dominate their competitors? he asks. Although a few studies have tried to identify improved traits that would give
rice a competitive advantage against weeds, we dont really know much about how rice varieties differ in early growth, let alone which traits are most important in giving them a competitive edge. Nevertheless, were working with breeders to establish what traits can best be used to develop new, highly competitive plants, he says, and weve got to achieve that without losing any of the attributes such as high yield and good grain quality that make these varieties popular with farmers and consumers. Adding urgency to the project is the fact that, of all the agricultural pesticides in use in Asia, farmers largest expenditure is on herbicides. Herbicides are an important component of integrated weed management and their use is rising rapidly, Dr. Hill says. But along with it, weed resistance to herbicides is also rising swiftly. Ten or 15 major weeds of rice are now showing resistance to herbicides. We want to develop strategies against weeds that will minimize both herbicide use and the development of weed resistance to herbicides. Improving both the competitiveness of rice and its tolerance for submergence has potential for doing that. The potency of these herbicides is not going to last if farmers are completely dependent upon them.
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Alongside global warming, the growing scarcity of water for agriculture is a major environmental issue affecting world rice production. But there is little comfort in the fact that draining paddies at times during crop growth both reduces methane emissions and saves water. Drying the flooded soil sometimes gives rise to an even worse gaseous emission: nitrous oxide. The gas is produced in a complex process involving nitrogen from both organic matter and fertilizers that remain in the soil as it becomes aerated when paddies are drained. Whereas one molecule of methane is 21 times worse than one of carbon dioxide in its contribution to global warming, nitrous oxidebetter known as laughing gasis 310 times worse than carbon dioxide. So the question among IRRIs soil and water scientists is, Should the hardware and methodology used to fix the amount of methane rising from flooded paddies be shifted directly into measuring the nitrous oxide rising from rice soil that is partly dry and partly wet? According to the deputy head of IRRIs Crop, Soil, and Water Sciences Division, soil chemist Dr. Guy Kirk, nitrous oxide emissions from rice fields are not a serious problem in continuously flooded systems. However, since rice farmers face the need to save water, this cannot be dismissed as a problem in the near future. IRRI scientists are currently preparing for a water-scarce future by perfecting a rice plant that will grow in aerobic, or dry and aerated, conditions, much like wheat or maize (see Aerobic Rice: Preparing For a Water Crisis, page 20). It is envisaged that the aerobic rice will be irrigated and will need fertilizer. Water-saving practices are going to push us toward nitrous oxide emissions, Dr. Kirk says. But we dont yet have the necessary information to quantify the problem. We are therefore developing research plans. One problem is that nitrous oxide emissions are very transient, so you need continuous measurement to record them. IRRI crop ecologist and modeler Dr. John Sheehy agrees. Interfering with water use by changing flooding to irrigation is rather
difficult and dangerous because water stress is the main factor limiting yield in agriculture and, if irrigation is continuous, its not likely to save water, he says. Furthermore, we will have to consider the effect on gas emissions with every proposed change in crop management. We will have to ask, What is this going to do to nitrous oxide emissions, on the one hand, or methane emissions on the other? Like it or not, rice crops will always grow at the interface between aerobic (with oxygen) and anaerobic (without oxygen) conditions. Dr. Sheehy is eager to investigate the benefits to rice farmers that may arise from global measures to mitigate emissions of greenhouse gases. He notes that provision has been made for socalled clean development mechanisms, in which developed countries, or even polluting industries, can pay for projects that reduce emissions in other parts of the world. The resulting reduction in emissions can then be reckoned as part of that developed countrys promised contribution to global reduction. For instance, an industry that emits 100,000 tons of carbon dioxide into the atmosphere every year can pay for the planting of a new forest in another part of the world that will capture 100,000 tons of carbon in its trees, thereby reducing the industrys carbon balance sheet to zero. The developers of the forest reap the monetary rewards. Trading in carbon credits began in January 2000, and Dr. Sheehy believes that the market will soon be worth billions of dollars per year. I think rice straw and rice hulls have potential in this area, he says. We must be able to work out how to sequester the carbon in straw and hulls. Perhaps we turn it into building material or wood substitutes, and save trees. Perhaps we use it to produce ethanol, as a fuel, thereby reducing the need for petroleum. Rice farming produces 500 million tons of straw every year, Dr. Sheehy adds. If the carbon in it is worth ten dollars a ton, that makes it worth five billion dollars. Thats a bit better than dumping it back into the paddies and fueling methane emissions.
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The current technology is going to run out of steam in about ten to 15 years. Present rice plants will be unable to convert any more solar energy into biomass and grain. They will have reached their limit. Dr. Sheehy takes this scenario and places it alongside predictions of future conditions for rice farming and estimates of future demand. The population of Asia is expected to increase by 44 percent in the next 50 years, he says. At present, more than half the people in Southeast Asia have a calorie intake inadequate for an active life, and ten million children die annually from diseases related to malnutrition. Yet simply to maintain our present per capita consumption, we will need 44 percent more rice within 50 years. The area for rice cultivation is continually being reduced by expansion of cities and industries, to say nothing of soil degradation. So we will need rice plants to deliver maybe 50 or 55 percent more. Dr. Sheehy points out that more efficient farmers will soon reach the yield limit, and the job of filling future needs will depend upon the less efficient farmers lifting their productivity. This prospect, he says, casts a dark shadow over future food security. Were trying to improve yields against a background of climate change and increasing competition for resources such as land and water. If, by using all the tools available to modern biotechnology, we can create a new plant that addresses many of these problems, then we should be doing it. He recalls that, in the past, higher yields have depended on increased use of organic and inorganic fertilizers to supply nitrogen to the plants. But this, he says, no longer represents the way forward because the use of organic fertilizer often stimulates the emission of methane and inorganic nitrogen fertilizers can stimulate the emission of nitrous oxide. Along with carbon dioxide, these are the two most damaging greenhouse gases and any proposal to boost rice production simply by increasing fertilizer use would risk making the worlds climate even worse.
Dr. Sheehy believes, along with a growing body of scientific opinion, that the only way to achieve the rice harvests needed for the future is to change the biophysical structure of the rice plant, making it a much more efficient user of energy from the sun. Plants use solar radiation to growto develop leaves, roots, stems, flowers, and seeds in a process known as photosynthesis. Rice has what is known as a C3 photosynthetic pathway, less efficient than that of maize, which has a C4 pathway. Converting a plant from C3 to C4 would involve a rearrangement of cellular structures within the leaves and more efficient expression of various enzymes related to the photosynthetic process. All the components for C4 photosynthesis already exist in the rice plant, Dr. Sheehy says, but theyre just distributed differently and are not as active. He believes that a significant part of IRRIs biotechnology and functional genomics programs should be targeted specifically at the conversion of rice to a C4 photosynthetic pathway. Work should also begin on screening likely candidates in the more than 100,000 germplasm samples held in the International Rice Genebank for varieties that lean toward a C4 anatomy, or that have greater enzyme efficiency. Dr. Sheehy believes that current trends leave about 15 years in which to invent a C4 rice, and that IRRI should be encouraging the formation of an international partnership to use all available biological tools to achieve it within that time frame. Plants with a C4 photosynthetic pathway are better equipped to cope with the climate changes that are expected as a consequence of global warming, he says. They operate well at high temperature, theyre extremely water-efficient, and they require less nitrogen. This is the single most important change that can be made to rice, and theres no doubt that, eventually, it will happen. If IRRI doesnt do this, and others succeed, then people will be asking, Where were you guys?
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biodiversity
Increased rice production has generally been achieved by planting a few improved plant varieties over large areas. This monoculture cropping has reduced the biodiversity of the rice landscape and has created genetic uniformity that exposes rice crops to attacks by disease pathogens and insects. Once a pest or pathogen has adapted to one plant, it is ready to attack the rest of the crop. Pest management has depended upon the development of disease- and pest-resistant varieties, and the use of pesticides. But when a single pest-resistant variety is planted over large areas, the insects and pathogens soon learn to overcome its natural resistance. Likewise, insect pests and disease organisms develop resistance to pesticides, and farmers are tempted to increase their application of chemicals. Traditional rice-growing environments with a rich diversity of plant varieties rarely suffer serious epidemics or insect outbreaks. Natural checks and balances among plants, herbivores, predators, pathogens, microbial antagonists, weeds, and other organisms prevent the increase of one population at the expense of the rest. However, traditional agriculture would never have succeeded in feeding the worlds modern population. The challenge is to maintain the high productivity of modern rice varieties while reversing the trend toward monoculture, and promoting a greater diversity of plant varieties growing in any single field. Taking this a step further, scientists have already brought economics and social acceptance into the equation, and theyre working out which varieties should be grown side by side for ease of crop management, to maximize profitability, and to provide a natural hedge against domination by any single destructive species.
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A similar report called The impact of pesticides on farmer health: a medical and economic analysis in the Philippines (Pingali, P.L. et al., 1995) claims that the value of crops lost to pests is invariably lower than the cost of treating diseases caused by pesticides. It says that the health costs incurred by farmers exposed to pesticides are 61 percent higher than those of farmers who are not exposed. The Thai report details the proliferation of trade names used there in marketing agricultural chemicals. One chemical is marketed under 296 different trade names, another under 274, and, as the report points out, this makes transparency for users and monitoring and control by government agencies nearly impossible. The effects on the Thai environment are equally dramatic. Studies have shown pesticide residues in more than 90 percent of samples of soil, river sediment, fish, and shellfish. Seventy-three percent of tangerines tested in one survey contained pesticide residues, and more than a third of all vegetables were contaminated with organophosphorus insecticides.
Against this backdrop, an IRRI team is helping to introduce to Thailand an education program that has already proven very successful in Vietnam. Under the banner of the Rice Integrated Pest Management Network, the campaign reduced insecticide use in Vietnams Mekong Delta by an estimated 72 percent. Whats more, the number of farmers who believed that insecticides would bring higher yields fell from 83 percent to just 13 percent. As in Vietnam, the new Thailand campaign will involve cartoon characters, billboards, information handouts, and, most importantly, brief and humorous radio programs. Local actors will play out a series of brief comedies, using rustic situations and solid scientific facts, to make their audience laugh. The basic premise is that farmers perceptions, rather than economic rationale, are used in most pest management decisions. We want to motivate farmers to think of the benefits of not using pesticides, says IRRI entomologist Dr. K.L. Heong. Most of the farmers in the project area spray their rice crops three or four times. In fact, some of them are not even using insecticides against insects. Theyre using them to kill snails, because they believe theyve got no other option. Pesticide use is regarded as a big problem in the Thai countryside. We are trying to reduce it by one half. Dr. Heong will be helping local researchers to develop the antipesticide campaign. It will be centered on the town of Singburi, north of Bangkok, in Thailands famous central rice bowl.
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integration
As Earths population continues to grow beyond the six billion mark, pressure on the quality of our natural environment also continues to grow. As demands on our soil, water, air, and biodiversity increase, our ability to adjust one part of this life support system without simultaneously affecting the rest is diminished. We therefore need to do more than carefully manage each of our natural resources: we need to integrate those management regimes so that, with every contemplated scientific intervention, the effects on all natural resources are taken into account. Hence, integrated natural resource management. Many Asian rice-farming traditions will undergo widespread changes within the next 20 years. There will be a far greater business orientation, mechanization will begin to replace manual labor, land ownership will be consolidated, and regulations will increase to control the exploitation of natural resources. On top of these will be a tide of agronomic measures and new plants with which farmers will struggle to satisfy demand. But these changes involve practical application, whereas the biggest revolution of all may be more a philosophical one: a recognition that nothing must be achieved at the expense of further damage to the environment. By 2020, we hope that the worlds rice producers will supply enough rice to feed half the worlds population. More certainly, a large number of them will be practicing a form of agriculture that is environmentally sustainable.
IRRI, Philippines
Past Research
In the 1960s, even when research focused on yield alone, it was driven purely by the need to feed hungry people and it still had its environmental payoffs. The much larger harvests from the new rice varieties with which IRRI contributed to the Green Revolution meant that farmers didnt have to break in new land to make enough money to live comfortably. The Intercenter Working Group on Climate Change says that the Green Revolution saved more than 400 million hectares of forest and grasslands from conversion into farms. As a consequence, the atmosphere was spared the emission of an estimated 600 million tons of carbon per year over the past 30 years. The additional benefits of the Green Revolution were probably not even considered in the 1960s. Therein lies a basic difference between agricultural research then and now. With the current heightened environmental consciousness, the development and use of new agricultural technologies to enhance agricultural productivity should be carefully considered in the light of their satisfying the food needs of the worlds population while maintaining Earths environmental
balance and protecting its natural capacity to produce more. We need to understand how an agricultural system works, Dr. Kam continues, and understand that how farmers use and manage their land, soil, and water is driven by their livelihood needs and aspirations, and moderated by institutional policies. IRRI has been contributing significantly to natural resource management (NRM) research and to protecting the integrity of the rice-growing environment. Its forte has been NRM research at the field and farm level, building strong scientific foundations for the management of crops, soil, nutrients, water, pests, diseases, and weeds. There has also been a concerted move toward more integrated approaches, such as integrated pest management and integrated nutrient management, taking into account interactions among nutrients, water, plant varieties, and the environment, Dr. Kam says. This is one dimension of integration in NRM that will produce field-level technologies aimed at more efficient use of natural resources and agricultural inputs, making rice production more environment-friendly.
Achieving a Balance
The single most important question facing agricultural science today is whether the farmers of the world can feed humanity without irreversibly damaging the natural environment. Most opinions suggest, with some confidence, that they can. But the confidence is tempered with caution, because Earths finite natural resources are being widely mismanaged and there are no straightforward solutions to the problems. So IRRI has joined a scientific movement that is coming to grips with the crucial need for sustainability and balance in the worlds farms and fields. One of its cornerstones is the recognition that pressures upon natural resources have become so intense that no single aspect of a farming system can be changed or manipulated without it affecting the rest, even including social and institutional considerations. This calls for a new approach, integrated natural resource management (INRM), which aims at making agricultural production environmentally, socially, and economically sustainable. At the heart of IRRIs commitment to the concept is Dr. Suan Pheng Kam, the Institutes Malaysian-born specialist in geographic information systems (GIS). Dr. Kam is team leader of a project titled Ecoregional approaches for integrated natural resource management and livelihood improvement.
India, in northeastern Thailand, and in the Red River Basin in Vietnam. However, Dr. Kam says that, to ensure long-term sustainable agriculture, the natural resource base needs to be maintained over broader geographical areas. If were investigating integrated pest management, to reduce the use of pesticides, she adds, were talking about biological control of some kind, and obviously youre not dealing with one individual farm, youre dealing with the entire landscape. If youre developing a technology that is labor-intensive, you may have to consider the availability of labor at the community or even regional level. Managing water at the farm level may affect an entire irrigation system. Conversely, operating an irrigation system correctly may influence all the farms within it. So these things must be tackled at both the farm and policy level.
Increasing Impact
However, she says that this research tends to be site-specific, and the challenge is to make INRM capable of benefiting large numbers of farmers, particularly the poor, across large areas and within reasonable time frames. In many Asian situations, Dr. Kam adds, rice is not the only crop that farmers grow, cropping is not the only agricultural activity that they engage in, and farming is not their only source of income. So the way farmers act and the decisions they make may not be based simply on rice. So researchers team up with development and extension workers,
including nongovernment organizations (NGOs), to identify farmers technology needs based on an understanding of their constraints and opportunities. Then, different combinations of technologies, a basket of options, will be offered, tested by the farmers in their own fields, and chosen according to their circumstances. This approach hastens the transformation of INRM research results into practical technologies that are more readily acceptable to farmers because they participate and adapt to meet their needs. This approach is already being tried out in the Mekong River Delta in Vietnam, on the Indo-Gangetic Plains of
INRM also takes IRRI a major step closer to the end users of its research and, to those involved in building the bridge between research and extension, its a step long overdue. One of them is the head of IRRIs International Programs Management Office, Dr. Mark Bell. Scientists often say, I have the answer to a particular problem, but the farmers havent adopted it, Dr. Bell says. I ask, What was the benefit to farmers in adopting it in the first place? And they often cannot answer. If farmers dont adopt a particular piece of technology, then there are two broad reasons: either they dont know about it or it simply doesnt appear to meet their needs. Often researchers havent listened to what farmers want. They havent communicated clearly, or theres been no consideration of the kind of incentives farmers need to adopt a new technology. To us it has to be science-logical, whereas to farmers it has to be lifestyle-logical. If a technology can be proven to save them money, lower their risk, give them greater yields, or reduce their workload, then were providing the correct incentives for its adoption. Dr. Bells office is involved in identifying new partners in the ricegrowing countries to help deliver technological innovations to the end users, the farmers. Many organizations with the potential to bridge the gap between scientists and farmers are these days found among NGOs and private companies, whereas, in the past, IRRI relied solely on the national agricultural research and extension systems of ricegrowing countries to communicate new technologies to farmers.
I expect it to move very quickly into farmers fields once it is released, Dr. Khush says. It will give farmers the chance to increase their yields, so it will spread quickly. Already it is yielding 13 tons per hectare in temperate China. Looking back on his three and a half decades with IRRI, Dr. Khush says he has come to love the Institute as his home. It provided me an excellent opportunity for professional development and allowed me to contribute to world food security. He believes that IRRI will have an important role to play in developing technologies for food security, environmental protection, and poverty alleviation for many years to come. He also believes that the Institute should be developing collaborative arrangements with private-sector corporations. IRRI has tremendous assets that the private sector does not possess, such as genetic resources, knowledge, and links with the national agricultural research and extension systems of ricegrowing countries. The private sector, on the other hand, has resources to invest in cutting-edge science and the generation of technologies. So, the roles of IRRI and the private sector should be synergistic.
immediately began to make his mark on food production in a hungry developing world. He has since played a key role in developing more than 300 rice varieties in IRRIs race to keep rice production ahead of population growth. One of them, IR36, was released in 1976 to become the most widely planted variety of rice, or of any other food crop, the world has ever known. It was planted on 11 million hectares in Asia in the 1980s, yielding an additional five million tons of rice a year, boosting rice farmers incomes by US$1 billion, and, because of its resistance to pests, saving an estimated $500 million a year in insecticide costs. IR64 later replaced IR36 as the worlds most popular rice variety and IR72, released in 1990, became the worlds highest-yielding rice variety. The Nobel laureate, Dr. Norman Borlaug, has summed up Dr. Khushs career by saying, The impact of Dr. Khushs work upon the lives of the worlds poorest people is incalculable.
Busy Retirement
Dr. Khush will move to California upon his retirement at the end of August, but he wont be away from IRRI for long. He will return for a few months every year to work as a consultant. Aside from this work, Dr. Khush looks forward to a busy retirement. He intends, first, to write about 10 research papers from information he has been unable, for lack of time, to compile. Then he intends to write a book on aspects of rice culture, possibly for use in high schools. After all that, he might consider an autobiography. As well, Dr. Khush has been invited to serve on the boards of several companies, but he hasnt accepted anything yet. First, he intends to spend more time with his family. His wife, Harwant, has a Ph.D. in educational management, his son Ranjiv is a molecular biologist, his eldest daughter Manjeev and youngest daughter Kiran are medical doctors in San Francisco, and a third daughter, Sonia, is an economist with the Save the Children Foundation in Washington, D.C.
A Farmers Son
Gurdev Singh Khush was born the son of a farmer in the village of Rurkee, in Punjab, India, in 1935. After excelling at high school, he went on to graduate from Punjab Agricultural University with a bachelors degree in science, majoring in plant breeding. Determined to further his studies in the United States, the young Khush borrowed money from relatives and went to England, where he worked as a laborer in a canning factory to earn his fare to America. There, he obtained a scholarship to study genetics at the University of California, Davis, and did so well that he gained his Ph.D. in genetics in less than three years. He was not yet 25 years old. Dr. Khush then spent seven years at the University of California, Davis, researching the cytogenetics of tomatoes. He joined IRRI as a plant breeder in August 1967, when he was 32, and
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The Institutes functional genomics project is also developing a large collection of what are called introgression lines, plants that carry a wide range of unique chromosome segments implanted from commercial varieties and wild rice. These will be used in the discovery of the functional diversity of the genes, and to understand the overall genetic, biochemical, and physiological systems in the rice plant. Backed by the unique collection of rice germplasm in the International Rice Genebank, IRRI researchers are multiplying their collection of modified plantswhat they call their genetic resourcesso that mutants and introgression lines can be supplied to other institutions assisting them in the challenging task of assigning functions to all the rice genes. According to the plant pathologist and geneticist leading the IRRI team, Dr. Hei Leung, the Institute has benefited from the rice sequencing projects of both the private and public sectors. It has been working with information as it has become available. The international consortium led by Japan is expected to finish its sequencing effort in two to three years, and this is particularly significant because of its anticipated accuracy and the fact that it will be completely open to public access. Dr. Leungs favorite analogy for the functional genomics project is that, after the genome is fully sequenced, scientists will have a dictionary full of words, with each word representing a gene, but with no definitions giving the words meaning or purpose.
The job of the IRRI team is to give a meaning to every word, to find a function for every gene. Already, by studying the deletion mutants and introgression lines, Dr. Leungs team has identified several genes giving the plants enhanced resistance to various types of organisms that cause disease. Mutants were isolated for genetic analysis after displaying tolerance for submergence. The team has also produced plants containing small chromosome segments from wild species that confer resistance to multiple diseases and insects. The scientists also found introgression lines and mutants that grew and yielded well in soil with too much or too little water. They studied the droughtresponse process in rice plants being grown under different water conditions, and identified a variety of proteins produced by the plants in the process of responding to drought and salinity stress. Such studies allow them to better understand the way rice plants respond to stress, and to find genes for use in plant breeding. For example, more than 100 genes that can help the plants defend themselves against pathogens have been found and are already being used to select better disease-resistant rice varieties. Dr. Leung says that an exciting aspect of genomics is that tools for gene discovery are constantly being improved. He and his team hope eventually to begin using gene chips, or microarrays, in their search for an understanding of genetic function. This relatively new technology involves massing about 20,000 genes on one display slide. This so-called chip can then be used as a sensor to detect genetic messages that are turned on or off when the plants are exposed to stress. The expression of the genes can be recorded and analyzed to give a total picture of how the plant behaves under different conditions. In this way, scientists will be able to identify hundreds or even thousands of genes that may combine and interact to achieve a particular function, such as tolerating drought, resisting disease, or producing more nutritious grains. This technology allows us to discover in weeks what would, in the past, have taken maybe two years of work,
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looking at the genes one at a time, Dr. Leung says. Of paramount importance in IRRIs functional genomics project are efforts to protect the interests of rice farmers and consumers from the private exercise of intellectual property rights, which could lead to increased prices or delays in the extension of benefits to the public. To broaden access to information, IRRI has launched a database on the Internet to describe the biological characteristics of its collection of deletion mutants. Another similar database has been developed for information on stressresponse genes. These will be linked to genome sequence databases to facilitate information exchange. The Institute has also established an International Rice Functional Genomics Working Group (http://www.cgiar.org/irri/ genomics/) as a first step toward developing a public research platform to accelerate gene discovery. Dr. Leung says that more than 14 research groups, including laboratories and institutions from the international rice research community, have agreed to contribute resources and expertise, and to promote the sharing of genetic stocks. Contributions from the IRRI team are now crucial to the success of this public research platform, he says. We must produce tangible things, make discoveries, and develop materials to give away. Within three years, I want researchers around the world to see the benefits of working with us. We dont want to be the only player on the field, but we would like to be the preferred
player because of IRRIs mission and the quality of our work. He says that its critical that the national agricultural research and extension systems (NARES) from rice-growing countries become involved in the working group. We need to make sure that this is not seen by the NARES as research beyond their reach. They must have a common place in which to work with someone they know and trust. We will make all our genetic resources and tools available to our partners. So far, the process of unraveling the secrets of the rice genome has been a harmonious combination of public and private efforts, and Dr. Leung says hes been impressed with the readiness of private organizations to contribute. I think theyve gradually realized that rice improvement is a longer-term process than they thought, and that there are no quick returns. Theyve also recognized that their benefits will accrue from better welfare for rice consumers in the developing world. Dr. Leung believes that it will take about ten years for scientists to complete the writing of the functional genomics dictionary. It will begin with the assignment of functions to every gene in the rice genome, but he points out that the true biological function of the genes is beyond that, and he quotes a few figures to illustrate the vastness of the job. There are 50,000 genes, but the function of each may vary in every rice variety because the genetic background of one is different from that of another. Just think, the International Rice Genebank has 110,000 different samples of rice germplasm. Ultimately, plant breeders may be able to refer to a database to find precisely which genes they need to achieve specific plant characteristics. Then, using maps of the genome, theyll select the genes and mix them, according to their plans, and the resulting plant should be just what theyre looking for. But Dr. Leung concludes that, like words in poetry, the creative composition of genes is the essence of successful plant breeding, and it will come down to how well we can use the dictionary.
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Expert Consultation
In January, about 50 people were invited to an expert consultation conference in Thailand. They included the heads or directors of training from the national agricultural research and extension systems (NARES) in 15 countries stretching from Madagascar through South, Southeast, and East Asia to Korea. Representatives from nongovernment organizations in each of the countries were also invited, along with IRRIs country representatives. We wanted to know what their training needs were and what they needed from us, Dr. Marcotte says. We also asked them about the impact of IRRIs training in their countries. We have never conducted a training needs assessment in this fashion before. And the outcome? The first priorities of most participants were training of
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trainers, integrated nutrient management, integrated pest management, and research station management. The NARES representatives were also asked to detail their information technology capabilities. Demand for IRRI training courses has, meanwhile, reached unprecedented levels, and the Training Center is working at full capacity to convert the entire gamut of its training resources to digital form for use on the Internet, on compact discs, and in the classroom. Its first electronic training or information packages were available a few years ago and most have been updated. The most popular is called TropRice. It offers noninteractive, grass-roots how to information for farmers, including details on plant varieties, planting times, management practices, and even economic assessments. In its original form, it was spoken in English, but it has since been translated into Thai, Vietnamese, and Indonesian and is widely and freely used throughout South and Southeast Asia. It has been updated about six times to keep abreast of advances in technology and is kept under constant review. Among many other places, it is used in universities in Indonesia, at Thailands Kasetsart University, and at farmer field schools throughout Bangladesh. TropRice has been supplemented by electronic information packages on hybrid rice and reaching toward optimum productivity. A start has now been made on the creation of TropRice Two, a version that will allow researchers in ricegrowing countries to contribute changes and incorporate the results of their local research. Electronic training courses prepared by the Training Center include Digital Literacy for Rice Scientists and English for Agriculture. Both are interactive.
Staggering Scope
Another course, called Experimental Design and Data Analysis, illustrated the staggering scope of electronic distance training. It was offered for the first time earlier this year. A printed study guide supported the Internet lessons. We used a virtual classroom, but in multiple locations, Dr. Marcotte explains. We were teaching the course as if we were in a classroom with 20 pupils. We
had real-time lectures, exercises were set, there were question-and-answer sessions, and we even gave homework. We are restricting our on-line courses to 100 students at the same time because of manageability problems, but the amazing thing is that we could deal with as many as 1,000 students. Our ability to reach people has accelerated by geometric progression. The Center is now working on the creation of a series of major training modules that will be offered freely on the Internet, or on CDs. The first, titled Growth Stages of the Rice Plant, was completed in 2000 and the second, Stem Borer, earlier in 2001. Both offer the latest scientific information supported by color photographs. Work is currently under way on Farm and Experimental Station Management, Pests, Weeds, and Diseases, and Integrated Natural Resource Management. We are painstakingly working our way through the current state of knowledge in rice science, Dr. Marcotte says. By creating these modules, these clusters of training tools, well have stand-alone products to put on the Internet. They are very large pieces of information. Imagine the issues in How do you run a farm? There are a huge number of techniques and procedures, but we have all that information, and well make it freely available. The new training thrust at IRRI is buoyed by a structural change that, for the first time, brings training under the research umbrella.
Training is now correctly placed for impact, Dr. Marcotte says. Were in coalition with people in the field. In reality, this is a new day for training at IRRI. Were not just talking about it, were doing it.
has one son, two daughters, and one granddaughter, all living within walking distance of IRRIs headquarters. Is there any conflict between motherhood and her job? I will look after my kids first, she says, almost fiercely. My family always comes first.
She recalls the difficulty of being a working mother with a young family. I was lucky because I always lived across the street, she says. One of my girls at the laboratory had trouble feeding her new baby. I couldnt do without her, so the baby and her housemaid moved in here. It takes a lot of guts to do these things, and to be able to compete with men, she adds. Her work philosophy is one of looking beyond the performance of a simple analytical service. Id like to see the laboratory geared to the solution of
problems by providing analytical tools to researchers, rather than serving only to provide data for others to interpret. Bernie Mandac is also working toward a personal dream. Her husband of 25 years, Abe, is an adviser to a United Nations drug control program in Myanmar. He took the two-year assignment so that he and Bernie could develop their 10-hectare retirement property at Isabela, in Northern Luzon. Hes a Filipino farmer at heart, she says, wistfully. We want to try our hand at agroforestry.
What were promoting is natural biological control of rice pests. Rice paddies have a very rich array of beneficial arthropodspredators, parasites, and parasitoidsand, if the rice environment is regarded in a holistic way, then encouraging these beneficial arthropods, instead of wiping them out, is clearly the best way to control pests. He goes as far as reassuring farmers that they shouldnt panic and run for the insecticide when they see pests on their rice crop. If you kill all the bad ones, there wont be any food for your beneficial friends, he explains. Insecticides should only be used when theres an outbreak of some kind, because that means that, for some reason, biological control is no longer working. Dr. Barrions work has led to the use of naturally occurring biological control agents to control insect pests, resulting in increased farm profits without resort to chemical pesticides. Much of his career has been an effort to understand the complex relationships between the tiny, often unseen, creatures that live in tropical rice fields. One of his best known publications is an insect identification
kit for rice pests and their natural enemies, used widely by scientists, researchers, and students. In the course of his studies, he keeps finding new, previously unrecorded creatures. Hes named eight genera and 270 species of spiders new to science, and hes working on describing 28 new taxa. His review of Philippine chalcidoids, the tiny wasps that kill the eggs of rice leafhoppers and planthoppers, yielded 23 species. Of these, eight genera and 15 species are new Philippine records. In the search for names, he only has to pick up the IRRI staff list. Three of the latest are Oligosita cantrelli (after IRRIs director general, Dr. Ronald Cantrell), Paracentrobia wangi (after IRRIs deputy director general for research, Dr. Ren Wang), and Oligosita mewi (after the head of IRRIs Entomology and Plant Pathology Division, Dr. Tom Mew). All are tiny parasitoid wasps native to the Philippines rice-farming ecosystem. Dr. Barrion is the head of IRRIs taxonomy laboratory. He is recognized as one of Asias top entomologists and araneologists.
RESEARCH HIGHLIGHTS
farmers have felt compelled to change their seeds or face continuing crop deterioration. The problem appears to have come hand-in-hand with more intensive cropping and a lack of farm labor. Both factors tempt farmers to overlook their once scrupulous but time-consuming care in choosing and storing seeds for the following seasons crops. Instead of being painstakingly selective, theyve been content to simply scoop a stock of seed from the general harvest. This practice has coincided with a trait common to modern rice varieties: they dont wait for good weather and flower even if it is raining heavily. When they are at their most vulnerable, the developing grains fall under constant attack from diseases and insect pests. Seeds harvested from such crops often carry the consequences of these attacks into the following season. Dr. Mew says that the situation becomes worse when the seeds must wait in poor storage conditions for up to nine months before planting, allowing molds and other contaminants to further diminish their quality. Nobody thinks of seed health, Dr. Mew says. In rice production, we tend to think only of crop management. But if the seeds are not good, then the farmers are building their agriculture on a poor foundation. The genetic potential of the plants will never be reached.
Working closely with their local partners over the past two years, the IRRI team has taught 560 Bangladeshi farmers how to sort their seeds and reject the poorly filled, diseased, and contaminated ones. They were taught how to recognize poor grains by their physical appearance. Commonly, at least half their seed was discarded. In some cases, more than 80 percent of it was in very poor health. Then they were told to grow a plot of the good, healthy seeds alongside their normal unsorted seeds, Dr. Mew says. Even at the start, the good seeds germinated uniformly and the ground cover was very rapid. The farmers needed to hand-weed the crop from the good seeds only once, and the rest of it several times. When it came to the harvest, farmers whose yields had previously amounted to 5.1 tons per hectare were reaping about 5.8 tons per hectare by using the healthy seed. Across the entire 560 farms, yields from the sorted seeds were, on average, nine percent higher. Applied to the entire Bangladesh rice crop, this would mean an increase of two million tons of grain. Dr. Mew says that his team hopes to give hands-on seed health training to enough Bangladeshi farmers, especially the women farmers, to guarantee that the technology spreads to all of Bangladeshs 13 million rice farms.
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continues to grow to deliver another seasons harvest, and so on. The hedgerow idea would prevent erosion by providing living barriers to soil movement on sloping land, helping to stop not only the loss of precious topsoil in upland regions but also the silting of rivers and irrigation systems downstream. Farmers would have a rice crop at least once a year without all the hard labor and expensive inputs of annual cultivation. Dr. Sacks says that some of the most promising plants will soon be sent for field trials in China and India so that their reaction to real upland conditions can be assessed. These plants are the result of a traditional breeding effort involving thousands of crosses of wild and domesticated species from Asia and Africa. One of the ancestors of modern rice, a wild Asian species called Oryza rufipogon, is the parent believed to have gifted the new plants with their seeming perenniality. The aim now is to give the new plants panicle characteristics that are more like those of cultivated rice. In
addition, adding resistance to pests and diseases and to attack by microscopic worms called nematodes will help ensure that the plants survive and yield. They will also need the capacity to compete with weeds. It may be another five years before they are ready for handing over to national agricultural research and extension systems and, from them, to upland farmers. Meanwhile, among the thousands of crossbred plants in the project, some big surprises have occurred. Some plants not only developed root systems capable of keeping them alive for several years, but they also survived experimental drought stress and, on top of that, yielded more grain than expected. Dr. Sacks explains that, in ordinary rice plants, many of the plants carbohydrates are dedicated to the process of flowering and developing seeds; little surplus energy remains for vigorous growth after harvest. So the new plants are under close scrutiny to find out how they gathered all their energy (see next story).
An Unexpected Offspring
Breeding new varieties of rice normally involves a painstaking process of trial and error in which countless thousands of crosses are made between huge collections of parent plants. With each batch of newcomers, plant breeders hope to find the genetic traits they are trying to create. In the mix and match of countless genes, surprises are sometimes in store. Occasionally, breeders inadvertently create plants with attributes totally unrelated to the aim of their project, but nonetheless fascinating and valuable. In the effort to create a perennial rice plant, IRRIs plant breeders may have stumbled upon a plant with an enhanced capacity for using sunlight. For many years, scientists have theorized that the productivity of rice could be boosted if its photosynthetic pathwaythe way plants use energy from the sun to fix carbon from the atmospherecould be made more efficient (see A New Plant for a Changed Climate, page 28).
Maize and sorghum are both plants with what is known as a C4 photosynthetic pathway. In most respects, it is more efficient than the C3 pathway of rice, wheat, and potatoes. Recently, biotechnicians in Japan and the United States have been transferring genes from maize into rice in an attempt to create a C4 rice. The question sparking interest at IRRI is whether or not the new plants bred in the search for perenniality have unexpectedly progressed a step or two down the path toward greater photosynthetic efficiency. A recent arrival from China to IRRIs scientific staff, Dr. Ming Zhao, a plant physiologist, has been examining firstand second-generation plants that were among the best performers in the perennial rice project. He has found an uncommonly high photosynthetic rate among second-generation plants, markedly higher than that of the plants parents and their first-generation family. The rate at which a plant assimilates carbon dioxide in sunlight is the usual measure of photosynthesis. In normal
rice plants, it is about 36 units, compared with maize, whose rate is slightly more than 50. The experimental, second-generation rice plants, grown in the hope that their mix of genes would make them perennial, register carbon dioxide assimilation rates as high as 46 units, about 90 percent of the rate of maize grown under similar conditions. The next step will be a comparison of the second-generation plants with their third-generation offspring. If there is a strong association between the photosynthetic performances of parents and progeny, then the researchers will feel confident that the special ability is a genetic trait, rather than something anomalous that may disappear within a few generations. Dr. Ming is optimistic. This new material may be very good for improving modern varieties, he explains. Improved photosynthesis can have the outstanding benefits of high yield along with greater efficiency in the use of both water and nitrogen.
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the development of hybrid technology more efficient. However, having perfected a range of hybrids for irrigated farming, researchers are now turning to the rainfed lowland ecosystem, where any increase in yields will have a direct impact on poverty. Breeding hybrids for this ecosystem, which is often beset by droughts, floods, or both, has now become a concerted effort. Already, some newly developed experimental hybrids have been sent to research stations in India, Thailand, and the Philippines. At the same time, IRRIs researchers are also developing a package of agronomic measures aimed at helping farmers who adopt hybrid technology. These mainly involve seeding and seedbed management, along with nitrogen management. We want to see how far we can spread this technology, Dr. Virmani says. To get the maximum out of hybrids, we have to make sure the farmers can use an agronomic package. Unlike many other areas of IRRIs research, the tropical hybrid program stirs considerable interest from private companies. This is because of the need to continually produce new seed, whereas
in conventional rice cultivation farmers simply plant seeds saved from the previous seasons crop. First-generation hybrids benefit from a phenomenon known as hybrid vigor. They perform better than both their parents. But this lasts for only one generation, and seeds kept from hybrids lose their superior yield and produce a nonuniform crop with mixed grain types. Private companies are attracted to hybrid rice technology because of the opportunity to profit from seed production. There is another reason, prompted by the one-season-only restriction. Some big multinational companies with genetically altered rice plants in the pipeline can protect their investment in these plants by using them as one of the parents of a hybrid, Dr. Virmani says. Then they cannot be copied. The farmers have to buy new seeds every season. He says that IRRIs hybrid program will take advantage of any developments in the conventional breeding program. For example, hybrid breeding has already begun with IRRIs new plant type lines and hybrids will be developed from vitamin A, or golden rice, lines as soon as they are available.
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More than 80 percent of the cultivated samples and nearly 70 percent of the wild samples collected under this project are now preserved in the International Rice Genebank. During 2000, thousands of new samples were grown and their seeds multiplied and tested for germination and health before they became accessions in the International Rice Genebank. The Genebanks active collection received 4,035 new accessions, and the base collection, where the seeds remain in long-term storage at minus 20 C, received 4,716 new accessions. Germplasm from new samples was multiplied and 1,978 O. sativa accessions and about 130 O. glaberrima accessions were rejuvenated. Seed stocks of about 1,000 wild species and newly acquired samples were also successfully increased in the nursery screenhouse. Staff at the Genebank also prepared routine descriptions of 1,640 O. sativa
accessions and 345 samples of wild species. The Genebank distributed almost 7,000 seed samples during 2000 in response to 173 requests from scientists from 24 countries. Of the samples sent out, 1,661 were of wild species. The International Rice Genebank Collection Information System (IRGCIS), which contains the International Rice Genebanks database and manages all seed stocks and exchanges of germplasm, was also updated during the year to allow greater flexibility of data management resources. This also provided a better link to the Systemwide Information Network for Genetic Resources (SINGER) on the World Wide Web (http://www.singer.cgiar.org).
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per hectare in the mid-1960s to between 80 and 90 kg per hectare in the wet season and 100 kg per hectare in the dry season in the mid-1990s. Over the same period, there had been a roughly equivalent rise in pesticide use, settling downward to between 0.65 kg and 1.4 kg of active ingredients per hectare in the 1990s. In Ilocos Norte, the wet-season rice crop received an average of 60 to 110 kg of nitrogenous fertilizer and 0.6 kg of active pesticide ingredients per hectare in the 1990s. But the sweet pepper crop was given about 446 kg of nitrogenous fertilizer and 6.1 kg of active pesticide ingredients per hectare. Out of 633 well samples taken in the irrigation projects, less than half had detectable levels of nitrate, and only one sample exceeded the World Health Organization (WHO) safe limit of 10 parts per million in drinking water. There was no evidence of any accumulation of groundwater nitrate from 1989 to 2000. At the Ilocos Norte site, nitrate concentrations varied from 5 to 12 parts per million, with the WHO safe limit for
drinking water being exceeded in July, October, and November. The relatively high contamination was attributed to the high use of nitrogen fertilizer in the sweet pepper crop. Low levels of nitrate coincided with a high incidence of wetseason rice cultivation. The researchers found that average pesticide concentrations in domestic wells at all three sites were generally one or two orders of magnitude below the WHO safe limit of 0.1 parts per billion for single pesticides. However, there were isolated instances at all sites where the level of a single pesticide was as much as 40 times higher than the WHO limit. They concluded that human health was not threatened by nitrate concentrations in drinking water beneath irrigated, double-cropped rice systems and that pesticide residues did not generally exceed safety limits. They added that both the environment and the history of the study areas suggested that the results of the survey could be characteristic of many parts of tropical Asia where rice-based cropping had intensified since the 1960s.
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Conversely, plant breeders needed to choose from scores of genotypes and genetic traits those best suited to particular environments. According to IRRI crop physiologist Dr. Len Wade, the quandary was well illustrated in an experiment in 1995. Thirty-one rice varieties were grown at nine locations in Thailand, India, and the Philippines to test yields. Researchers found that 40 percent of yield variation was due not simply to site conditions or plant characteristics, but rather to complex interactions between the plants and their environments. It was impossible to match suitable varieties with every one of millions of rainfed rice farms. So, working with researchers in five countries, Dr. Wade and the head of IRRIs biometrics unit, Dr. Graham McLaren, sought repeatable patterns of risk within the myriad interactions between scores of rice varieties and hundreds of possible growing environments. Instrumental in the new research will be recent advances in molecular biology, including the tagging and characterization of genes and gene transfers, improved methods in physiology, and better tools for data analysis. The potential gains to food security, human nutrition, poverty reduction, and environmental protection are immense. Using about 48 rice varieties, the 1995 experiment was expanded to spread over 37 environments in India, Bangladesh, Thailand, Indonesia, and the Philippines.
Patterns of interaction between the plants and their diverse environments have been plotted. The like behavior of different varieties has led to the formation of groups and, from each of these, one variety has been chosen as a representative reference line. From the original 48 varieties, the team now works with just 10 reference lines. Plant breeders aiming to develop new plants for specific rainfed environments can link plant characteristics and genetic traits with environmental factors. They can multiply and use the reference lines themselves, or breed new plants with similar patterns of adaptability. The achievement has not been lost on plant breeders in national research systems. Such has been the demand for full sets of the reference lines that IRRIs besieged seed multiplication program is taking orders for delivery next year. Dr. Wade says that over the next three to five years the reference lines will be grown in a the widest possible variety of environments, and their reactions carefully measured. Were now using the plants to assay the environmental conditions, Dr. Wade says. We might think that two soils are very different, but if one plant variety does equally well on both, then the soil difference means nothing to that plant. Such groupings simplify the targets for plant breeders.
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All were chosen for their potential adaptability to the East Timorese environment, and sufficient seed was supplied for small replicated field trials. The seeds were planted between December 2000 and March 2001. Dr. Javier returned to East Timor in April 2001 to monitor the field trials, and will return later in the year, when the experimental crops are mature and ready for harvest. The varieties most suited to local conditions will then be identified, with three or four varieties chosen from each category. More seed from each will then be multiplied in IRRIs fields in the Philippines and shipped back to East Timor for the next stage in the project. Local farmer-cooperators will then grow the three or four selected varieties in each of the targeted ecosystems, and will be asked to select the variety they think is best suited to local conditions, local tastes, and local management practices. Seed production from the most popular varieties will then be organized
locally and, with continuing IRRI and ACIAR support, rice production in East Timor will begin to recover from the ravages of war. Assisting various nations around the world to recover from devastating conflicts has become a familiar role for IRRI. In the late 1980s, the seeds of Cambodias traditional rice varieties were found in safekeeping in the International Rice Genebank at IRRI and were returned to that country so its agricultural production could begin a 20-year struggle toward self-sufficiency following years of war. IRRI also sent shipments of seeds to Rwanda, in central Africa, where years of internal warfare had left the countrys agricultural and social systems in chaos. Ethiopia was another nation that received seeds from the International Rice Genebank in an effort to feed its war-weary population.
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growing sites. Most of them went to countries in Asia, but others were sent to Ethiopia, Mozambique, Senegal, Bolivia, Brazil, Suriname, Venezuela, and Italy. Some also went to the West Africa Rice Development Association (WARDA). INGER also prepared 12 sets of yield nurseries covering irrigated lowland, rainfed lowland, and upland ecosystems for the Seeds of LifeEast Timor project, funded by the Australian Centre for International Agricultural Research (see opposite page). In response to requests from rice scientists worldwide, 509 seed samples were also processed and distributed to 24 countries and to researchers at IRRI and WARDA. Eleven types of nurseries were prepared for distribution during 2001. They were composed of 859 breeding lines that came from researchers in 32 countries, as well as five IARCs. A total
of 432 nursery sets were produced for distribution in 2001. During the year, INGER began to distribute electronic field books to collaborators for recording data from INGER nurseries. These will serve as data entry tools to the International Rice Information System (IRIS) and the INGER Information System, INGERIS. Development and testing of the INGERIS, and its link to IRIS, were completed, and a new seed inventory system was developed. Of the many rice varieties tested in the 1999 INGER trials, 287 were used as parents in the hybridization programs of ten countries. They had originated from breeding programs in 27 countries. As well, 519 breeding lines were selected for follow-up yield trials by NARES in 13 countries.
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Institutional Activities
New Medium-Term Plan
To hasten the impact of IRRIs research, the new MTP provides strong bridges between the Institutes research activities and the national agricultural research and extension systems (NARES) of rice-growing countries and IRRI staff posted outside the Philippines. The new MTP consists of 12 focused projects across four programs. They renew IRRIs commitment to the conservation of genetic resources, improvement of germplasm with classical methods, integrated pest management, integrated nutrient management, and ecoregional research. This research places increased emphasis on the more fragile environments and the associated problems of biotic and abiotic stresses. The new plan also outlines the Institutes commitment to the new science of functional genomics to solve the old problems of agronomic performance and to address some new opportunities for improving the nutritional quality of rice. As well, it identifies new opportunities and approaches in the effective transfer of technology.
New Positions
Two critical positions, head of the Plant Breeding, Genetics, and Biochemistry (PBGB) Division and IRRIs first intellectual property specialist, were filled. The appointees are Dr. David Mackill and Dr. Thanda Wai, respectively. On 31 December 2000, Dr. Gurdev Khush officially retired as head of the PBGB Division and leader of various research programs. He will continue to serve as IRRIs principal plant breeder and as a member of the management team until the end of August 2001. Dr. Khush served as PBGB Division head for nearly three decades. Dr. Sant Virmani is serving as PBGB interim head until the arrival of Dr. Mackill.
Khush received the B.P. Pal Gold Medal and the Padma Shri Award, both from his native India. He also received the Wolf Prize from the President of Israel, and was awarded honorary doctorates from Cambridge University in the U.K. and from Assam Agricultural University in India. Dr. Khush was also made an honorary professor of the University of Tehran, in Iran, and an honorary researcher of the China National Rice Research Institute. Drs. James Hill and Roland Buresh, both from IRRIs Crop, Soil, and Water Sciences Division, were made fellows of the American Society of Agronomy, and entomologist Dr. K.L. Heong received an honorary doctorate of science from the University of London. The Prime Minister of Cambodia bestowed a Distinguished Collaboration Award on Dr. Harry Nesbitt, leader of the Cambodia-IRRI-Australia Project, and the Officer Award for Collaboration on INGER coordinator Dr. Edwin Javier and agricultural engineer Joe Rickman. Entomologist Dr. Alberto Barrion received the Outstanding Local Scientist Award for 2000 from the CGIAR in Washington, D.C. As well, he received the Pest Management Council of Philippines Pest Management Award for 2000 and the Gawad Saka Special Citation from the Philippines President.
including an IP audit. It focused on the IP implications of germplasm-related technologies deployed by IRRI, functional genomics and bioinformatics activities carried out by IRRI researchers, the new plant type, and use of thirdparty proprietary technologies to enhance the nutritional value of rice. The results indicated that IRRIs capacity in trait discovery, in collaboration with its NARES partners, is an important inventive activity. In considering the IP implications of these issues, the IPMR investigated the extent to which defensive publication or defensive registration might be used to deal with some IP problems. One theme running through the review was the necessity for IRRI to consider its IP management in the wider context of its membership in the CGIAR. The IPMR identified a need to consolidate the office of the deputy director general for partnerships (DDG-P) as IRRIs single-door IP unit, handling all IP issues and acting as a depository of IP documents.
Intellectual Property
In 2000, the second phase of the Institutes intellectual property management review (IPMR) was completed,
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The task force recommended that IRRI should not only plan for a global knowledge system for rice, but it should clearly define its role in such a system. It recommended that IRRI become actively involved with other institutions planning or creating global knowledge systems on agriculture and development and, by doing so, ensure the involvement of its NARES partners. The task force concluded that, by taking advantage of the opportunities afforded by new information and communication technologies, IRRI can integrate its research and information activities with those of its partners, thus achieving a true science partnership from the rice fields of Asia to the molecular laboratories and supercomputers of the developed world.
During the year, the Web sites were enhanced by the addition of electronic versions of the three 2000 issues of the International Rice Research Notes, the Program Report for 1999, and recent IRRI conference and workshop proceedings. New sections were created for rice genomics, rice bioinformatics, decision support tools, and software downloads. Sixteen titles were produced and distributed, including seven IRRI books, four installments of the IRRI discussion paper series, and one installment of the limited proceedings series. One of the books, Redesigning Rice Photosynthesis to Increase Yield, was a dual imprint with Elsevier Science. More than 139,000 photographs in the IRRI archives, dating back to 1960, were assessed, classified, catalogued, and indexed. Of these, about 3,500 of the best images were scanned and made available for searching and downloading via Institute computers.
During the year, the public awareness unit produced 28 press releases and 27 photo releases, delivered more than 100 broadcasts on The IRRI Hour radio show, produced the 1999-2000 annual report, The Rewards of Rice Research, and a 2001 wall calendar, Rice Science for a Better World. The unit also created a new Internet homepage and produced four editions of The IRRI Hotline. The Institute also welcomed about 50,000 visitors to its headquarters including ten state ministers, 35 ambassadors and members of the diplomatic corps, and 15 representatives of donor and international organizations such as the United Nations Development Programme, Food and Agriculture Organization of the United Nations, and Asian Development Bank. The 40th anniversary events kicked off with an international rice research conference titled Rice Research for Food Security and Poverty Alleviation, beginning on 31 March. It attracted 243 researchers from 35 countries. Events culminated with the Fourth International Rice Genetics Symposium in late October, which brought 507 participants from 32 countries. It is believed to have been a record gathering at IRRI headquarters.
Library
During 2000, more than 8,000 references were added to the rice bibliography database, bringing the total to more than 188,300. The on-line catalog grew to 60,715 bibliographic records. To provide electronic access to rice literature prior to 1970 and to benefit scientists who have no Internet access, the International Bibliography on Rice Research, 1951-2000, was published in CD-ROM format in December. The library added 277 rice dissertations to its collection, most of which came from China and major European countries, and acquired 33 videocassettes for the audiovisual learning center. The main library collection now contains 116,655 monographs and 1,536 active serial titles.
Scientific Publishing
IRRIs four Web sitesthe IRRI home site (www.cgiar.org/irri), Riceweb, Riceworld, and the IRRI Library site continue to grow in popularity. There were nearly 210,000 visitors to the Web sites during 2000. They made more than 780,000 hits, or movements within the sites. More than 100,000 files of popular information products were downloaded, including installments of the discussion paper series, stories from the 1999-2000 annual report, and sections of the International Rice Research Notes and annual program reports. IRRI-developed software also proved popular. An example was more than 1,000 downloads of the popular IRRISTAT program for statistical analysis.
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Mrs. Angeline Saziso Kamba 3 Hogsback Lane P.O. Box BW 699 Borrowdale Harare, Zimbabwe E-mail: askamba@samara.co.zw Dr. Lene Lange (vice chair) Director, Molecular Biotechnology Novozymes A/S Krogshoejvej 36, bldg 1AMS.04 DK-2880 Bagsvaerd, Denmark E-mail: lla@novozymes.com Leonardo Q. Montemayor (ex officio) Secretary Department of Agriculture Elliptical Road, Diliman 1100 Quezon City, Philippines Fax: (63-2) 929-8183/928-5140 Dr. Francisco J. Nemenzo (ex officio) President University of the Philippines System Diliman, Quezon City, Philippines E-mail: pfn@surfshop.net.ph Dr. Calvin O. Qualset Director Genetic Resources Conservation Program Division of Agriculture and Natural Resources University of California One Shields Avenue Davis, CA 95616-8602, USA E-mail: coqualset@ucdavis.edu
Dr. Siene Saphangthong Minister Ministry of Agriculture and Forestry P.O. Box 811 Vientiane, Lao PDR Fax: (856-21) 412-344 Dr. Emanuel Adilson Souza Serro Director General EMBRAPA Eastern Amazon CPATU/EMBRAPA Caixa Postal 48 66.420 Belm, Par, Brazil Fax: (091) 276-9845, 276-0323 E-mail: aserrao@cpatu.embrapa.br Dr. E.A. Siddiq National Professor (ICAR) Directorate of Rice Research Rajendranagar Hyderabad 500030, A.P., India E-mail: pdrice@x400.nicgw.nic.in Dr. Jian Song Vice Chairman, Chinese Peoples Political Consultative Conference President, Chinese Academy of Engineering Sciences 3 Fuxing Road Beijing 100038, China Fax: (86-10) 6852-3054 E-mail: xuan@mail.ied.ac.cn
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Staff
(as of 31 Dec. 2000)
Administrative Personnel Ronald P. Cantrell, PhD, director general William G. Padolina, PhD, deputy director general for partnerships Ren Wang, PhD, deputy director general 4 for research Gordon B. MacNeil, MBA, director for finance Ian M. Wallace, MLS, director for administration and human resources Henrik Egelyng, PhD, institutional issues 1 specialist Mercedita Agcaoili Sombilla, PhD, policy economist and head, Liaison, Coordination, and Planning Fe V. Aglipay, BS, manager, human resource development Melba M. Aquino, BS, manager, budget Douglas D. Avila, BS, manager, physical plant Glenn A. Enriquez, BS, manager, security and safety office Walfrido E. Gloria, MBA, manager, legal office Ramon R. Guevara, MBA, manager, materials management Ma. Obdulia B. Jolejole, BS, manager, food and housing services Alfredo M. Mazaredo, BS, manager, physical plant Mario F. Ocampo, MBA, manager, systems Elisa S. Panes, BS, manager, cash management Enrique O. delos Reyes, BS, manager, physical plant Manuel F. Vergara, BS, manager, transport office Staff Based at Headquarters Agricultural Engineering Mark A. Bell, PhD, interim head Robert Bakker, PhD, affiliate scientist Joseph F. Rickman, MS, agricultural 6 engineer Lita Norman, MS, collaborative research 3 fellow Biometrics Christopher Graham McLaren, PhD, biometrician and head Richard M. Bruskiewich, PhD, 4 bioinformatics specialist
Communication and Publications Services Eugene P. Hettel, MA, science editor and head Bill Hardy, PhD, science editor/publisher Computer Services Paul ONolan, MS, IT manager Crop, Soil, and Water Sciences James E. Hill, PhD, agronomist and head, program leader, irrigated rice ecosystem research Guy Joseph Dunn Kirk, PhD, soil chemist and deputy head 4 Roland Buresh, PhD, soil scientist Jean Christophe Castella, PhD, IRS seconded from IRD 3 Barney P. Caton, PhD, visiting scientist Madduma P. Dhanapala, PhD, affiliate 4 scientist Achim Dobermann, PhD, soil nutrient 1 specialist John L. Gaunt, PhD, IRS seconded from 1 the Institute of Arable Crops Research Thomas George, PhD, IRS seconded from NifTAL Corinta Q. Guerta, MS, senior associate scientist Motoyuki Hagiwara, PhD, visiting scien1 tist Wenxin Hu, collaborative research fellow Olivier Huguenin-Elie, collaborative 1 research fellow Abdelbagi M. Ismail, PhD, plant physiolo4 gist 1 Satoshi Kubota, PhD, project scientist Jagdish K. Ladha, PhD, soil nutritionist Renee Lafitte, PhD, plant physiologist Rhoda S. Lantin, MS, senior associate scientist Lumin Liu, PhD, project scientist 3 Chantal Loyce, PhD, project scientist Bernardita E. Mandac, MS, senior associate scientist Veeragathipillai Manoharan, PhD, project 1 scientist 4 Zhao Ming, PhD, affiliate scientist AbuBakr AbdelAziz Mohamed, PhD, 4 project scientist Andrew Martin Mortimer, PhD, weed ecologist 4 Takuhito Nozoe, PhD, agronomist Maria Olofsdotter-Gunnarsen, PhD, 1 affiliate scientist
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Shaobing Peng, PhD, crop physiologist Gyaneshwar Prasad, PhD, project scien1 tist Wolfgang Reichardt, PhD, microbiologist Reimund P. Roetter, PhD, systems network 1 coordinator John E. Sheehy, PhD, systems modeler and crop ecologist Pierre Siband, PhD, IRS seconded from CIRAD Virendra Pal Singh, PhD, agronomist Domingo F. Tabbal, MS, senior associate scientist Guy F. Trebuil, PhD, IRS seconded from CIRAD To Phuc Tuong, PhD, water management engineer Romeo M. Visperas, MS, senior associate scientist Leonard J. Wade, PhD, agronomist Alan K. Watson, PhD, IRS seconded from 1 McGill University 1 Christian Witt, PhD, project scientist , 4 affiliate scientist Haishun Yang, PhD, project scientist Woon-Ho Yang, collaborative research 4 fellow Entomology and Plant Pathology Twng-Wah Mew, PhD, plant pathologist and head, program leader, upland rice ecosystem research Kong Luen Heong, PhD, entomologist and deputy head 1 Ossmat Azzam, PhD, virologist Alberto T. Barrion, PhD, senior associate scientist Emerlito Borromeo, PhD, project scientist Pepito Q. Cabauatan, PhD, senior associate scientist Michael Benjamin Cohen, PhD, entomologist Bart Cottyn, MS, affiliate scientist 1 Ahmed Dirie, PhD, project scientist Francisco A. Elazegui, MS, senior associate scientist Sung-Kee Hong, collaborative research 4 fellow 6 Gary C. Jahn, PhD, entomologist Jan Leach, PhD, adjunct scientist 3 Se-Weong Lee, visiting scientist Seung-Don Lee, collaborative research 4 fellow Hei Leung, PhD, plant pathologist Georges Reversat, PhD, IRS seconded from ORSTOM
Elsa Rubia-Sanchez, PhD, project scientist Kenneth G. Schoenly, PhD, insect ecolo1 gist Lene Sigsgaard, PhD, collaborative 1 research scientist 1 Wazhong Tan, PhD, project scientist 1 Xiaoping Yu, PhD, project scientist 1 Wenjun Zhang, PhD, project scientist Zeng-Rong Zhu, PhD, project scientist Experiment Station Tomas P. Clemeno, BS, manager Arnold R. Manza, MS, manager 2 George F. Patea, PhD, manager Genetic Resources Center Michael T. Jackson, PhD, head Edwin L. Javier, PhD, INGER coordinator Flora C. de Guzman, MS, senior associate scientist 1 Genoveva Loresto, MS, project scientist 1 Bao-Rong Lu, PhD, germplasm specialist Stephen Morin, PhD, anthropologist Jean-Louis Pham, PhD, IRS seconded 1 from IRD Chang-In Yang, PhD, collaborative 1 research fellow International Programs Management Office (Headquarters-based) 5 Mark A. Bell, PhD, agronomist and head Vethaiya Balasubramanian, PhD, agronomist/CREMNET coordinator Julian A. Lapitan, MS, senior associate scientist Plant Breeding, Genetics, and Biochemistry Gurdev S. Khush, PhD, principal plant breeder and head, program leader, crossecosystems research Sant S. Virmani, PhD, plant breeder and deputy head Fida M. Abbasi, PhD, collaborative 3 research fellow 1 Ilyas M. Ahmed, PhD, project scientist 4 Abubacker J. Ali, PhD, project scientist 4 Gary N. Atlin, PhD, upland rice breeder Man-Kee Baek, collaborative research 1 fellow 1 Navtej S. Bains, PhD, project scientist 4 Niranjan Baisakh, PhD, project scientist , 3 visiting scientist 4 Sena Balachandran, PhD, project scientist
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John Bennett, PhD, senior molecular biologist 4 Fu Binying, PhD, project scientist Darshan S. Brar, PhD, plant breeder Young-Chan Cho, PhD, collaborative 4 research fellow 3 Im-Soo Choi, PhD, visiting scientist Normita M. dela Cruz, MS, senior associate scientist Swapan K. Datta, PhD, plant biotechnologist Karabi Datta, PhD, plant biotechnologist Yoshimichi Fukuta, PhD, plant breeder 4 Glenn Gregorio, PhD, affiliate scientist Woon-Go Ha, PhD, collaborative research 4 fellow Shailaja Hittalmani, PhD, visiting 3 scientist Louise Friis Bach Jensen, MS, collaborative research fellow 3 Kuk-Hyun Jung, visiting scientist Kyung-Ho Kang, PhD, collaborative 4 research fellow R.P. Kaushik, PhD, project scientist Arumugam Kathiresan, PhD, project scientist Bo-Kyeong Kim, collaborative research 1 fellow 4 Nguyen Thi Lang, PhD, visiting scientist Deung-Don Lee, PhD, collaborative 4 research fellow Moon-Hee Lee, PhD, IRS seconded from RDA-Korea Zhikang Li, PhD, plant molecular geneticist 4 Lijun Luo, PhD, visiting scientist 4 Chang-Xiang Mao, PhD, project scientist Kenneth McNally, PhD, affiliate scientist 3 Hanwei Mei, collaborative research fellow Shin Mun-sik, PhD, collaborative research 1 fellow 3 No-Bong Park, PhD, visiting scientist 3 Madasami Parani, PhD, visiting scientist 4 Tilathoo Ram, PhD, project scientist 1 Sabariappan Robin, PhD, project scientist Erik Sacks, PhD, affiliate scientist 1 Alma Sanchez, PhD, project scientist Surapong Sarkarung, PhD, plant breeder 1 Jagir S. Sidhu, PhD, project scientist 1 Yu Sibin, PhD, project scientist Sanjay Singh, PhD, project scientist You-Chun Song, PhD, collaborative 3 research fellow Jumin Tu, PhD, project scientist 4 C.H.M. Vijayakumar, PhD, project scientist
Parminder Virk, PhD, affiliate scientist Xu Weijun, PhD, project scientist 1 Changjian Wu, PhD, project scientist 3 Li Xiaofang, PhD, visiting scientist Bi Xuezhi, PhD, project scientist 4 Seiji Yanagihara, PhD, rice breeder Public Awareness Duncan I. Macintosh, AB, head Olivia Sylvia O. Inciong, MS, manager, public awareness Mario M. Movillon, MS, manager, visitors, exhibition, and conference services Social Sciences Mahabub Hossain, PhD, economist and head, program leader, rainfed lowland rice ecosystem research Sushil Pandey, PhD, agricultural economist and deputy head David Dawe, PhD, agricultural economist Christopher Edmonds, PhD, affiliate 1 scientist Esteban Godilano, PhD, project scientist Chu Thai Hoanh, PhD, affiliate scientist Aldas Janaiah, PhD, project scientist Suan Pheng Kam, PhD, GIS specialist 1 Nguyen Tri Khiem, PhD, project scientist 3 Li Luping, collaborative research fellow Piedad F. Moya, MS, senior associate scientist Thelma R. Paris, PhD, affiliate scientist Training Center 4 Paul Marcotte, PhD, head Abdul Karim Makarim, PhD, project 4 scientist Madeline B. Quiamco, PhD, senior associate scientist Staff Based in National Agricultural Research and Extension Systems Bangladesh Sadiqul I. Bhuiyan, PhD, IRRI representative for Bangladesh and water scientist Cambodia Harry J. Nesbitt, PhD, agronomist and team leader Peter G. Cox, PhD, agricultural economist China Sheng-Xiang Tang, PhD, liaison scientist for China
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India R.K. Singh, PhD, representative and liaison scientist Indonesia/Malaysia/Brunei Darussalam Mahyuddin Syam, MPS, communication specialist and liaison scientist Japan Hiroyuki Hibino, PhD, liaison scientist Kazuko Morooka, BA, librarian Lao PDR John M. Schiller, PhD, agronomist and team leader Bruce A. Linquist, PhD, upland research specialist Madagascar Martha M. Gaudreau, PhD, cropping 1 systems agronomist and team leader Myanmar Arnulfo G. Garcia, PhD, cropping systems 1 agronomist and IRRI representative Thailand Boriboon Somrith, PhD, liaison scientist
1 2 3
India E-mail: irri@vsnl.com Phone: (91-11) 582-5802, 582-5803 Fax: (91-11) 582-5801 Contact: Dr. R.K. Singh Indonesia, Malaysia, Brunei Darussalam E-mail: irribogr@indo.net.id Phone: (62-251) 334-391 Fax: (62-251) 314-354 Contact: Dr. Mahyuddin Syam Japan E-mail: irrijp@jircas.affrc.go.jp Phone/fax: (81-298) 386-339 Contact: Dr. Hiroyuki Hibino Lao PDR Vientiane E-mail: j.m.schiller@cgiar.org Phone: (856-21) 412-352, 414-373 Fax: (856-21) 414-373 Contact: Dr. John M. Schiller Luang Prabang E-mail: b.linquist@cgiar.org Phone/fax: (856-71) 212-310, 212-765 Contact: Dr. Bruce A. Linquist Myanmar E-mail: irri.mya@mptmail.net.mm Phone: (95-1) 663-590 Fax: (95-1) 642-341 Contact: Dr. Mark Bell Thailand Bangkok E-mail: irri-bangkok@cgiar.org Phone: (66-2) 579-5249, 579-9493, 5611581 Fax: (66-2) 561-4894 Contact: Dr. Boriboon Somrith Ubon E-mail: irriubon@cscoms.com Phone: (66-45) 344-100, 344-101 Fax: (66-45) 344-090 Contact: Dr. Surapong Sarkarung Vietnam E-mail: irri-hanoi@netnam.org.vn Phone: (84-4) 823-4202 Fax: (84-4) 823-4425 Contact: Dr. Mark Bell
Left in 2000. On study leave. Joined and left in 2000. 4 Joined in 2000. 5 Transferred from Agricultural Engineering Unit. 6 Transferred from Cambodia-IRRI-Australia Project.
Paul ONolan, Dr. Tom Mew, Dr. Sant Virmani, and Dr. Emil Javier.
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IRRIs audited financial statements, which provide detailed information about the Institutes finances, are available from the office of the director for finance. This graph provides information on support from IRRI donors in 2000, which totaled $33,795,442.
Mexico 15,000 Netherlands Norway Philippines Rockefeller Foundation Spain Sweden Switzerland Thailand United Kingdom USAID United States Department of Agriculture World Bank Others
188,160 164,672 4,068,159 25,000 2,521,931 3,960,285 25,000 397,797 2,700,500 597,277 116,276 212,146 1,021,827
* The Government of France also provided personnel and other services valued at F2.19 million.
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