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Effects of water stress (WS) on O2 ∙− (a), H2O2 (b), and lipid peroxidation (expressed as malondialdehyde, MDA) (c) in Cerasus humilis leaves of Huai'rou (HR) and Nongda4 (ND4). Samples were collected after 21 d of treatment. The data shown are the mean of at least three replicates with standard errors shown by vertical bars. Asterisk (∗) indicates significant difference with control groups (well-watered) at the 0.05 level of probability by Duncan's Multiple-Range Test.
