Figure 2.

Examination of RWC of 13 soybean cultivars and the reference cultivar W82. For drought treatment, water withholding was applied to 12-day-old plants for 15 days. SMC was recorded in each pot of each cultivar at 5-day intervals during the measurement of RWC of the soybean cultivars. (a) SMC was measured under well-watered condition. (b) SMC was measured under drought condition. Error bars represent standard error (n = 3). (c) RWC under normal (black bars) and drought conditions (grey bars). Error bars represent standard error (n = 15). Different letters indicate significant difference within a treatment according to Duncan's test (P < 0.05 level).