Fig. 4 | Scientific Reports

Fig. 4

From: Effect of exogenously applied amino acids on photosynthetic pigments, metabolites and enzymatic antioxidants in Zea mays L. subjected to salt stress

Fig. 4

Effect of methionine, tryptophan, glycine betaine and lysine foliar spray on (A) total chlorophyll and (B) carotenoids contents of Zea mays plants grown under salt stress (120 mM NaCl). Data presented in the graphs is the mean of three replicates ± standard errors. Bars sharing similar letters are not significantly different at p < 0.05.

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