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Zinc toxicity in corn as a result of a geochemical anomaly

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Summary

Corn grown on zinc-rich soil (adjacent to an abandoned zinc mine) showed severe chlorosis and stunting. Soil zinc content was positively correlated with leaf zinc content, but not correlated with leaf iron content. Soil zinc was negatively correlated, and soil iron positively correlated, with chlorophyll content. Excess zinc may interfere with iron metabolism in the plant, but does not appear to affect the iron supply to the leaf.

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Rosen, J.A., Pike, C.S., Golden, M.L. et al. Zinc toxicity in corn as a result of a geochemical anomaly. Plant Soil 50, 151–159 (1978). https://doi.org/10.1007/BF02107165

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  • DOI: https://doi.org/10.1007/BF02107165

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