Fig 5.

Effects of low light on guaiacol peroxidase (G-POD) (A), catalase (CAT) (B), ascorbate peroxidase (APX) (C) and superoxide dismutase (SOD) (D) activities in the leaves of purple pak-choi seedlings. The data are the mean of three replicates, with SDs shown as vertical bars. The means marked with different letters indicate significant differences between treatments at p<0.05, as determined with Duncan’s multiple range test. Different lower-case letters at each time point indicate significant differences between treatments.