Fig. 3

Effects of different treatments on the biomass accumulation of perennial ryegrass seedlings (mean ± SE; n = 4). (A) Effects of PEG-6000 treatments on root fresh weight and shoot fresh weight. (B) Effects of CaCl2 treatments on root fresh weight and shoot fresh weight. (C) Effects of pH treatments on root fresh weight and shoot fresh weight. (D) Effects of PEG-6000 treatments on root dry weight and shoot dry weight. (E) Effects of CaCl2 treatments on root dry weight and shoot dry weight. (F) Effects of pH treatments on root dry weight and shoot dry weight. Different lowercase letters indicate significant differences among treatments at P ≤ 0.05 level.