Figure 2.

Trends and correlations of the relative changes of phytohormones in 93-11D and 93-11T before and after Na₂CO₃ stress. The relative contents of ABA (A), JA (B), ACC (C), IAA (D), SA (E), and tZ (F) obtained from 93-11D and 93-11T leaves before and after Na₂CO₃ stress at 0, 3, 6, 12 and 24 h. The correlation of each phytohormone in 93-11D (G), and 93-11T (H) were analyzed based on the Pearson correlation coefficient. Color keys and histograms show the degree of correlation. ABA: abscisic acid; JA: jasmonic acid; ACC: 1-aminocyclopropanecarboxylic acid; IAA: 3-indoleacetic acid; SA: salicylic acid; tZ: trans-Zeatin. Three biological replicates were performed for each experiment. Bars with different letters indicate significant difference between treatments according to Duncan’s multiple range test, p < 0.05. Asterisks indicate significant correlations between two phytohormones with the standard of * p < 0.05 and ** p < 0.01.