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. 2023 Jun 22;11:e15343. doi: 10.7717/peerj.15343

Figure 1. Effect of exogenous spray applications of glutathione (GSH; 0.5 or 1.0 mM) on the contents of free proline (A), total free amino acids (TFAA) (B), and total soluble sugars (TSS) (C) of common beans plants grown under different irrigation levels (seasons average).

Figure 1

The vertical bar represents the standard error. Different letters on the bar indicate a significant difference by Tukey’s Honest Significant Difference test at P ≤ 0.05.