
Effects of potassium deficiency on antioxidant metabolism related to leaf senescence in cotton (Gossypium hirsutum L.)
Keywords: CV; coefficient of variance; DPA; days post anthesis; LSCB; leaf subtending the cotton boll; Fv/Fm; the primary light energy conversion efficiency of PS II in the dark; ΦPSII; quantum yield of PS II; qP; coefficient of photochemical quenching; qN; coeffi