【摘 要】
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A pot experiment was conducted to investigate cadmium(Cd) uptake by different rice cultivars that produce white or dark grains. Four cultivars with white grains
【机 构】
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Research Center for Eco-environmental Sciences,Soil and Land Systems
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A pot experiment was conducted to investigate cadmium(Cd) uptake by different rice cultivars that produce white or dark grains. Four cultivars with white grains(hereafter, white rice) and five cultivars with dark colors (hereafter dark rice) were selected for this experiment. Three levels of soil Cd concentrations were used, background(0), 5 and 10 mg/kg. After harvest, plant biomass, tissue concentrations of Cd, Ca, Fe, Cu and Zn were analyzed. The results showed that Cd concentrations are significant different between different genotypes, but when comparing the Cd concentrations for the two groups, no significant difference was found. For other divalent cations, Ca concentrations in dark rice were higher than those in white ones(P
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