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Effect of potassium (5, 10 mM K) and humic acid (HA, 2 g kg−1) on shoot Na (A), root Na (B), shoot K (C) and root K (D) concentrations of salt tolerant (SARC 1) and salt sensitive (SARC 5) wheat genotypes exposed to exposed to 100 mM NaCl salt stress (S). DW, dry weight. For each trait, bar data with the same letter indicate no significant difference between treatments (p < 0.05).
