Fig. 4

Synergistic effect of nitric oxide and arginine on total soluble proteins and enzymatic antioxidants of Brassica napus grown in salt stress. (A) Total soluble proteins, (B) Catalase, (C) Peroxidase and (D) Ascorbate peroxidase. Graph bars presented mean of three replicates ± standard errors in error bars. Different alphabets above graph bars obtained after Duncan’s multiple range test presented mean values are significantly different at p ≤ 0.05.