Physiological and biochemical responses of Brassica napus L. cultivars exposed to Cd stress

Four different rapeseed (Brassica napus L.) cultivars CZL, Benefit, Iwas and ZhongZhuang9, were used to analyse physiological responses higher doses of cadmium (Cd) their ability Cd accumulation. Plants exposed for 30 days dosages (0, 50, 100, 150 mg Cd/kg) in soil under greenhouse conditions. Cadmium was accumulated more roots than shoots all tested cultivars, with the highest ZhongZhuang9. After lowest dose, translocation factor CZL (0.8) Benefit (0.6). The content both K Ca varied between treatments cultivars. chlorophyll fluorescence parameters relative affected minimally. High constant levels salicylic acid a sharp increase proline found mostly Iwas; therefore, it may be considered as tolerant cultivar.