Green Bean
Green Bean
Green Bean
,
Sri Lankan J. Biol. 2018, 3 (1): 44-51
DOI: http://doi.org/10.4038/sljb.v3i1.17
Abstract
Music influences the growth of plants through either promoting or restricting the growth of
plants. The effects of Pirith chanting and pop music were focused in the present study.
Seeds of Two (02) rice varieties (Bg300 and Kaluheenati) were subjected to dormancy
break treatment, kept in a soundproof confined chamber and arranged in Completely
Randomized Design (CRD) with two (02) replicates and 10 seeds per replicate. Seeds were
allowed to germinate under the sound rhythms; pop music, Pirith chanting and silence
separately in sound proof chamber. A set of pop songs and Thunsuthra in Pirith chanting
were chosen as the two (02) sound rhythms. Seeds were kept under silence served as the
control. Music and Pirith were played separately for an hour, at 30cm distance away from
the seeds with an intensity of 55-60 dB for seven (07) days continuously, maintaining equal
environmental conditions. Following seven (07) days, the percent germination was
recorded. The same germinated seeds were planted in plastic pots filled with paddy soil, up
to ¾ of the total depth and pots were arranged in Completely Randomized Design (CRD)
with two (02) replicates and five (05) plants per replicate. Following one week, plants were
subjected to the sound rhythm treatments and silence separately for three (03) months
continuously. Measurement on growth and yield performance were recorded every
fortnight. Significantly different (p < 0.05) in growth and yield performances were
observed under Pirith and pop music. Considerably higher rates of growth and yield were
observed for varieties exposed to Pirith and comparatively, the effect of Pirith on growth
and yield performance was higher with respect to pop music thus implying that the
rhythmic chanting of Pirith is the most appropriate type music that improved the growth
performance of Oryza sativa.
-0003-
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January 2018 Sri Lankan Journal of Biology
Munasinghe et al.,
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Sri Lankan Journal of Biology 3(1) January 2018
Munasinghe et al.,
performance of two (02) rice varieties of The germinated seeds of the previous
Sri Lanka. experiment were planted in plastic pots
filled with paddy soil, up to ¾ of the total
2. Material and Methods depth and pots were arranged in
Completely Randomized Design (CRD)
Two rice varieties (Bg300 and with two (02) replicates and five (05)
Kaluheenati) were obtained from Rice plants per replicate. One week after
Research and Development Institute, planting, the experiment was commenced.
Batalagoda, Sri Lanka. The experiments The same sound treatment procedure as
were carried out in soundproof confined described earlier was applied to all the
chambers in the Research Laboratory of plants for three (03) months
the Department of Botany at the Open continuously, while maintaining other
University of Sri Lanka, Nawala, Sri Lanka. environmental conditions constant.
Seeds were subjected to dormancy break Growth performance indicators; plant
at 50 oC for five days and subsequently height, chlorophyll content, number of
surface sterilized by keeping them in 70% leaves, leaf length, tillers and dry weight
alcohol for two minutes. Seeds were of plants (three plants per replicate were
washed thoroughly with distilled water destructively sampled) and yield
and dipped them in 2% Clorox for about performance indicators; days for bearing,
30 minutes. Finally, the seeds were number of panicles, spicklets, numbr of
thoroughly washed with distilled water, seeds, 1000-grain weight and field grain
kept in the soundproof chambers and percentage (seeds/spicklets) x 100) were
arranged in a Completely Randomized recorded . All statistical analyses
Design (CRD) with two (02) replicates (descriptive statistics, multiple range
and 10 seeds per replicate. Seeds were comparison – LSD and nonparametric
allowed to germinate under two sound range tests (Z test) were carried out using
rhythms; pop music and Pirith, SPSS PC (Ver.23) (2015).
separately. A set of pop songs and
Thunsüthra (Karaneyameththasüthra, 3. Results
Rathanasüthra, Mahamangalasüthra) Two way ANOVA results with the
were selected for the experiment. The interaction terms (Var*Trt ) is shown in
seeds exposed to silence were treated as
Table 01. According to table, the
control. Music and Pirith were played
interactions between sound treatment
separately for an hour, at 30 cm distance
and rice variety were marginally
away from the seeds with an intensity of significant at p = 0.042. Therefore, the
55 – 60 dB for seven (07) days
adjusted calculated means were given in
continuously, maintaining equal
the table indicated that there was a
environmental conditions (Vanol and
significant difference between the
Vaidya, 2014). Following seven (07) days, treatments. The variations between the
based on the observation, the percent treatments indicate the significant
germination (Germinated seeds/Total
difference in sound rhythms treatments
seed x 100) was calculated (Krishnasamy
and a significant difference between the
and Seshu, 1989). pop music and Pirith on the seed
germination (p = 0.001). There was no
significant difference between the rice
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January 2018 Sri Lankan Journal of Biology
varieties to the different sound rhythm
treatments (p = 0.150). Therefore, both
varieties, Kaluheenati and Bg300 content in both varieties for Pirith was
indicated a 10% increase in percent observed, there was no significant
germination under Pirith and music (92% difference between pop music and silence
and 81% respectively). The response of (Table 02). Meanwhile, an enhancement
the same varieties to pop music indicated in the dry weight of the plants was
an average germination percentage noticed under Pirith whereas plants
between Pirith and silence conditions. under pop music showed a decrease in
dry weight.
The variation of plant height, leaf length,
chlorophyll content and dry weight were Further, the results revealed that the
shown in Table 02. Compared to pop differences between the growth
music and silence, 1000 seed weight of parameters of plant height, leaf length,
Kaluheenati and Bg300 have indicated a chlorophyll content and dry weight of
statistically significant increased in plants grown under Pirith and pop music
response to Pirith (p < 0.05). However, (p < 0.05) (Table 2). Nevertheless, the
the mean plant height difference was variation of leaf chlorophyll content, leaf
statistically significant (p < 0.05) under length and dry weight of plants under the
the treatment of Pirith. An increased pop music treatment were comparatively
mean leaf length and mean chlorophyll insignificant with respect to the control (p
content were observed in both varieties > 0.05). These results imply that Pirith
under Pirith. Although, an apparent chanting influence the growth
difference in the magnitude of leaf length performance of the rice plants.
and chlorophyll
Table 1: Rice grain germination under three treatments (Pirith, pop music and silence).
Different letters in columns indicates a significant difference relevant to the treatment
given.
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Sri Lankan Journal of Biology 3(1) January 2018
Munasinghe et al.,
Table 3: Result of the Z-test carried out on the non-parametric growth and yield
performance indicator
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January 2018 Sri Lankan Journal of Biology
Wang, X. J., Wang, B. C., Jia, Y., Huo, D.,
Duan, C. R. (2003) Effect of sound
stimulation on cell cycle of
chrysanthemum (Gerbera jamesonii)
Colloids and Surfaces (B: Biointerfaces)
29: 103-107.
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Sri Lankan Journal of Biology 3(1) January 2018