Interaction of Salinity and Cadmium on Physiological Response of Brassica oleracea L.

Abstract In order to survey effect of salinity and cadmium on catalase and peroxidase enzymes activity , proline accumulation, Malondialdehyde and protein content variation in Brassica oleracea an experiment was conducted in green house condition factorial design based on completely random block in 2014 year. The first factor was cadmium at four levels (0, 50, 100 and 200 ppm) and second factor was salinity at three levels (0, 50, 100 ppm). According to result of this experiment, catalase and peroxidase enzymes activity and proline and Malondialdehyde accumulation increased with Cd accumulation and protein content decreased. Under salinity stress peroxidase enzymes activity and Malondialdehyde accumulation increased. Interaction effect of cadmium and salinity cause to decrease Malondialdehyde accumulation, decrease protein content and decrease peroxidase and catalase enzyme activity.