The phytoremediation potential of oilseed rape (B. juncea) as a hyperaccumulator for cadmium contaminated soil

The Cd uptake character of two kinds of selected mustard-typed oilseed rape and their potential as ahyperaccumulator in the phytoremediation of Cdcontaminated soil were studied with greenhouse pot cultivationexperiment and hyperaccumulator of Indian mustard as comparing plant. The results indicate that oilseed rapeXikou huazi has markedly higher shoot biomass, Cd uptake amount and soil purification rate than Zhucang huazi and Indian mustard when the Cd concentration in soil is 0 to 20mg/kg. The Cd concentrations in shoot and root of the two oilseed rapes and Indian mustard are not significantly different; above 88% of the Cd uptake distributes in shootes with stronger resistibility of Cd toxicity. Xikou huazi has hypeaccumulator character and stronger remediability of Cd contaminated soil.