Figure 3.

Effects of Z-3-HAC on gas exchange of the third fully expanded leaves in peanut seedlings under salinity stress. (A) Net photosynthetic rate (Pn), (B) intercellular CO₂ concentration (Ci), (C) stomatal conductance (Gs), and (D) transpiration rate (Tr). The seedlings were primed with distilled water or 200 μM Z-3-HAC twice. After priming, the seedlings were exposed to NaCl stress. At 7 days after the onset of salinity stress treatment, the gas exchange parameters were determined. Bars are the standard deviations (SD) of three independent replicates (n = 3). Error bars labels with different letters indicate significant differences at p < 0.05 between treatments according to Duncan’s test.