Figure 3.

Mean time germination (MTG) of durum wheat seeds primed with ZnSO₄ (P ZnSO₄), KNO₃ (P KNO₃), or not primed (P0) and subjected to different salinity stress levels (1: 0 g L⁻¹ NaCl, 2: MSS = 5 g L⁻¹ NaCl, and 3: SSS = 10 g L⁻¹ NaCl). The significance of the differences is marked by the letters in the figures. Means with different letters are significantly different at α = 0.05 according to Fisher’s Least Significant Difference. The standard error of the mean of 100 seeds (five replicates of twenty seeds each) is represented by the bars on the columns.