Fig. 2From: Responses of leaf gas exchange attributes, photosynthetic pigments and antioxidant enzymes in NaCl-stressed cotton (Gossypium hirsutum L.) seedlings to exogenous glycine betaine and salicylic acidResponse of (a) D-ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco), b phosphoenolpyruvate carboxylase (PEPC), c malondialdehyde (MDA), and d leaf relative water content (LRWC) to exogenous glycine betaine (GB) and exogenous salicylic acid (SA) treatments under salt stress. CK = Control; GB2.5 = 2.5 mM GB; GB5.0 = 5.0 mM GB; GB7.5 = 7.5 mM GB; SA1.0 = 1.0 mM SA; SA1.5 = 1.5 mM SA; SA2.0 = 2.0 mM SA; and ST = saline treatment (150 mM NaCl). All data are mean ± standard deviation. Differences between treatments having different letters above the error bars are significant at P < 0.05Back to article page