Figure 3.

Effect of different concentrations of Cu with or without the application of EDTA on malondialdehyde contents (A), proline contents (B), superoxidase activity (C) and peroxidase activity (D) in the leaves of C. capsularis seedlings grown in solution medium with increasing Cu concentrations (0, 50 and 100 μM) treated with and without 3-mM EDTA. The given values are means ± SD (n = 3). One-way ANOVA was performed and means differences were tested by highest significant difference HSD (P < 0.05). Different lowercase letters in figure indicate significant difference between the treatments.