Fig. 4.

Effects of exogenous BCAAs (100 mg/L) on biochemical changes in barley seedlings treated with 100 mg/L ZJ0273

(a) Peroxidase (POD) activity; (b) Superoxide dismutase (SOD) activity; (c) Catalase (CAT) activity; (d) Ascorbate peroxide (APX) activity; (e) Glutathione reductase (GR) activity; (f) Malondialdehyde (MDA) content. Values are expressed as mean±SE (n=3). Means followed by the same letters did not significantly differ by the LSD test at P≤0.05. CK: control, no ZJ0273; aa: BCAAs; FW: fresh weight