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. 2026 Jul 28;17:1887737. doi: 10.3389/fpls.2026.1887737

Figure 3.

Bar graphs with error bars present plant fresh weight (panel A) and aboveground dry weight (panel B) at varying salt stress concentrations for four treatments: 0, 5 percent, 15 percent, and 25 percent PEG-6000, showing highest values without PEG-6000 and reductions as both salt and PEG-6000 percentages increase. Statistical groupings and significance are indicated on each bar.

Effects of combined drought and salinity stress on the aboveground dry weight and fresh weight of alfalfa seedlings. (A) Fresh weight, (B) Aboveground dry weight. D, drought stress; S, salinity stress; D × S, interaction between drought stress and salinity stress. Different lowercase letters above bars indicate significant differences among treatments at P < 0.05. *, **, and *** indicate significance at P < 0.05, P < 0.01, and P < 0.001, respectively; ns indicates no significant difference.