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Effects of melatonin on activities of antioxidant enzymes. (A) Superoxide dismutase (SOD). (B) Peroxidase (POD). (C) Catalase (CAT) in both leaves and roots. The waterlogging stress was lasted 9 days. The data are means ± SD of triplicate experiments. Different letters indicate significant differences from the control (P < 0.05).
