Figure 3.

Superoxide dismutase (SOD) activity (A), catalase (CAT) activity (B), guaiacol peroxidase (GPX) activity (C), and ascorbate peroxidase (APX) activity (D) of Rubus hongnoensis as affected by light quality. Light quality applied included W, white (as the control) light-emitting diodes (LEDs); R, red LEDs; B, blue LEDs; RGB, combined LEDs of R, green (G), and B at 7:1:2; and RGBFr, combined LEDs of R, G, B, and far-red (Fr) at 7:1:2:1. Data are the mean ± S.E of the 5 biological replicates. Means accompanied by different letters are significantly different (p < 0.05) according to the Duncan’s multiple range test at 5% significance level.