Fig. 3.

Anion content of shoot and roots of Brassica rapa seedlings exposed to two levels of NaCl, KCl, Na₂SO₄ and K₂SO₄. Low concentrations were 50 mM for NaCl and KCl and 25 mM for Na₂SO₄ and K₂SO₄ (grey bars). High concentrations were 100 mM for NaCl and KCl and 50 mM for Na₂SO₄ and K₂SO₄ (black bars). Data represent the mean of four measurements with three plants in each (± SD). Different letters indicate significant difference (p < 0.05; One-way ANOVA, Tukey’s HSD all-pairwise comparisons as a post-hoc test)