Fig. 3

Effects of NaF priming on activities of antioxidant enzymes such as superoxide dismutase (SOD, U mg protein⁻¹ g⁻¹ FW min⁻¹) (A, G), catalase (CAT, U mg protein⁻¹ g⁻¹ FW min⁻¹) (B, H), soluble peroxidase (SPO, U mg protein⁻¹ min⁻¹) (C, I), ionic peroxidase (IPO, U mg protein⁻¹ min⁻¹) (D, J), ascorbate peroxidase (APX, μmol mg protein⁻¹ g⁻¹ FW min⁻¹) (E, K), and glutathione peroxidase (GPX) (F, L) in shoots and roots of barley plants under Al-stress. Values are means ± standard errors (SEs) (n = 5). According to Tukey's test, bars that are accompanied by the same alphabet are not significant among the treatments at P≤0.05