Fig. 2.

dw is a GA-deficient soybean mutant. The morphological phenotypes (a) and the statistical data of plant height (b) of wild-type and dw plants 1 week past the exogenous GA₃ (0.1 mg/L) application. Phenotypes (c) and the statistical data of plant height (d) of 1-week-old elongated dw and Zp661 seedlings after treatment with 0.6 mg/L Uni (uniconazole, a GA₃ biosynthesis inhibitor). e Determination of endogenous GA levels in the first internodes of 14-day-old dw and Zp661 plants. The water treatment was used as the control and the scale bar is 2 cm for a and c. ND not detectable. Data for b and d are based on a growth chamber experiment using a randomized complete block design with three replications. The statistical significance of the phenotypic differences among different treatments was evaluated using one-way ANOVA. Bars superscripted by different small letters are significantly different at the 5% probability level