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| Genotypic and environmental variation in cadmium, chromium, arsenic, nickel, and lead concentrations in rice grains |
| CHENG Wang-da, ZHANG Guo-ping, YAO Hai-gen, WU Wei, XU Min |
| Department of Agronomy, Zhejiang University, Hangzhou 310029, China; Jiaxing Academy of Agricultural Sciences, Jiaxing 314016, China; Zhejiang Provincial Seed Management Centre Station, Hangzhou 310016, China |
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Abstract Genotypic and environmental variation in Cd, Cr, As, Ni and Pb concentrations of grains, and the relationships between these heavy metals and Fe, Zn were investigated using 9 rice genotypes grown in 6 locations for two successive years. Significant genotypic variation was detected in the five heavy metal concentrations in grains, indicating the possibility to reduce the concentration of these heavy metals in grains through breeding approach. The environmental effect varied with metal, with Pb and Ni having greater variation than the other three metals. There was significant genotype-environment (location) interaction of the concentrations of all five heavy metals in grains, suggesting the importance of cultivar choice in producing rice with low heavy metal concentrations in grains for a given location. Correlation analysis showed that Cd and As, Cr and Ni, and As and Pb concentrations in rice grains were closely associated, and that Ni concentration in grains was negatively correlated with Zn concentration.
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Received: 30 October 2005
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Cite this article:
CHENG Wang-da, ZHANG Guo-ping, YAO Hai-gen, WU Wei, XU Min. Genotypic and environmental variation in cadmium, chromium, arsenic, nickel, and lead concentrations in rice grains. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2006, 7(7 ): 9-.
URL:
http://www.zjujournals.com/xueshu/zjus-b/10.1631/jzus.2006.B0565 OR http://www.zjujournals.com/xueshu/zjus-b/Y2006/V7/I7 /9
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