
Keywords: AHâ;  ascorbate; β-C; β-carotene; CAT; catalase; Chl-a; chlorophyll-a; EPR; electron paramagnetic resonance; GST; glutathione-S-transferase; LR; lipid radicals; Pmax; net photosynthesis; PAR; photosynthetically active radiation; POBN; α-(4-pyridyl 1