Fig. 4.

Mineral nutrient composition of shoot and roots of Brassica rapa seedlings exposed to two levels of NaCl, KCl, Na₂SO₄ and K₂SO₄. Concentrations were 100 mM for NaCl and KCl (grey bars) and 50 mM for Na₂SO₄ and K₂SO₄ (black bars). Data represent the mean of five 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); DW = Dry weight