Abstract
The joint effect of chlorimuron-ethyl and cadmium (Cd) on biomass growth and cadmium accumulation in wheat (Triticum aestivum L.) was investigated and compared with single-factor effect of soil cadmium pollution. The results showed that dry biomass of wheat had significantly (p < 0.01) negative relationships with increasing concentrations of chlorimuron-ethyl and cadmium in phaiozem. The highest inhibition rates observed were 76.2%, 62.7% and 55.6% for roots, shoots and glumes, respectively, when the concentration of cadmium in soil was up to 100 mg kg(-1). There were synergistically inhibitory interactions between chlorimuron-ethyl and cadmium on biomass growth of wheat. The SPT values of cadmium for wheat decreased with an increase in the concentration of cadmium added to the tested soil. The accumulation of cadmium in wheat shoots, roots and glumes could be inhibited by chlorimuron-ethyl to some extent. There was an antagonistic interaction between chlorimuron-ethyl and cadmium on accumulation of cadmium in wheat.
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