Pot experiments were carried out to investigate the influence of different selenium( Se) levels( 0,0. 5 and 1. 0 mg·L-1) on the plant growth,concentration of malonaldehyde( MDA),activities of antioxidant enzymes,accumulation and chemical forms of cadmium( Cd) in cucumber when exposed to Cd( 20 mg·kg-1). The results showed that dry weights of leaf,stem,root,fruit and plant,and concentrations and accumulation of Cd significantly differed between two varieties of cucumber Yanbai and Jinyou 1. With increasing l...