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Effect of warm + cold [warm 1–42 days (closed bar), warm 56 days + cold 7, 28 or 56 days (striped bar)] and cold (open bar) stratification on changes in activity of SOD, CAT and POD in embryos isolated from pomegranate seeds. Values are mean ± s.d. Different lowercase letters in a bar indicate significant difference (Tukey’s HSD, P = 0.05).
