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Effects of GB03, water retaining agent (WRA), or the combination of GB03+WRA on relative electric conductivity (REC) of ryegrass. BT, before treatment (20-day-old seedling); 10DD, 10-day natural drought; 20DD, 20-day natural drought; 7DR, 7 days after rewatering Values are means and bars indicate SEs (n = 12). Columns with different letters indicate significant differences among treatments at p < 0.05 (ANOVA and Duncan’s post-hoc multiple comparison test).
