FIGURE 9.

GA or H₂O₂ mediated the transcript level of GA catabolism genes NtGA2_OX1 (A,B) and NtGA2_OX2 (C,D) during seed imbibition. Seeds were collected, respectively, at 0, 24, and 48 h during imbibition, and four replications for each treatment at each sampling time were used. Different small letters on top of the bars indicate significant differences (LSD, α = 0.05) among treatments at the same imbibition time. Error bars indicate ± SE of mean (n = 4). For additional explanations, please see Figure 1.