GENOTYPIC DIFFERENCES IN NUTRIENT UPTAKE AND ACCUMULATION IN RICE UNDER CHROMIUM STRESS
The effect of chromium (Cr) on the uptake, distribution and accumulation of nine nutrient elements was studied in two rice genotypes, Xiushui 113 and Dan K5. The effect on elemental concentrations and accumulations varied with Cr level, nutrient element, genotype and plant part. Maximum nutrient accumulation occurred at 10 M Cr, while the minimum occurred at 100 M Cr, indicating best plant growth at the 10 M level. It may be assumed that low Cr level enhance plant growth. The correlation between the concentrations of Cr and nine elements differed among plant parts, but Cr accumulation was significantly and negatively correlated with the accumulation of each element, suggesting that increasing Cr level may create nutrient deficiencies or imbalance in rice.
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Document Type: Research Article
Affiliations: Department of Agronomy, College of Agriculture and Biotechnology, Huajiachi Campus, Zhejiang University, Hangzhou, China
Publication date: January 1, 2010