| environment and genotype controls on mercury accumulation in rice (oryza sativa l.) cultivated along a contamination gradient in guizhou, china. | accumulation of total hg (thg) and methylmercury (mehg) was investigated among 50 indica rice varieties cultivated in 3 sites in guizhou, china, classified as highly-contaminated, moderately-contaminated, and background sites. concentrations of soil and pore water (depth: 0-2 cm) thg and mehg were poor predictors of thg and mehg concentrations in polished white rice and bran, with significantly higher accumulation in the moderately-contaminated site compared to the other 2 sites (anova, p<0.0001 ... | 2012 | 22513403 |