Fig. 4. The effect of light quality on the oxidative damage and antioxidant capability.

Membrane injury index (a), MDA content (b), ROS levels (c, d), and antioxidant capacity (e–i) in leaves of rapeseed under different lights. Car carotenoids, CAT catalase, MDA malondialdehyde, POD peroxidase, SOD superoxide dismutase, RB red–blue light, RBG red–blue–green light, RBW red–blue–white light, RBY red–blue–yellow light, W white light. Vertical bars are means±SDs (n = 3). Bars labeled with lowercase letters are significantly different by Duncan’s test at the P < 0.05 level