Fig. 6.

Effects of NO (5 mM) and KAR1 (3 × 10−9 M) on (a) ACC contents, (b) ACS activity, (c) ACO activity in secondary dormant Brassica oleracea seeds during imbibition at 21 °C (n = 3). Values are mean ± SE. Significant differences between treatments determined by two-way analysis of variance (ANOVA), followed by HSD Tukey’s test. Means with different letters are significantly different at p < 0.05. KAR1, karrikin1; NO, Nitric oxide; ACC synthase, ACS, ACC oxidase, ACO; h, hours