Figure 6.

Overexpression of GA2oxs Has Different Effects on Rice Seed Germination and Seedling Growth.

(A) Morphology of T1 seedlings at 18 DAI.

(B) Seedling heights of GA2ox5Δ335-341_ACT and GA2ox9_ACT mutants were slightly shorter, while seedlings of GA2ox6_ACT were much shorter than the wild type. Heights of eight plants in each line were measured, and error bars indicate the se of the mean at each time point.

(C) Germination rate was normal for the GA2ox9_ACT mutant, slightly delayed for the GA2ox5Δ335-341_ACT mutant, and significantly delayed for the GA2ox6_ACT mutant compared with the wild type. Numbers of seeds for determining germination rates were 154, 50, 156, and 49 for the wild type, GA2ox5Δ335-341_ACT, GA2ox6_ACT, and GA2ox9_ACT, respectively.