Fig 3. Anthocyanins in shoots, and germination time.

A, Anthocyanin levels in shoots of WT and psy2l grown in rock wool with complete nutrient solution (+N) or solution without KNO₃ (-N) for 1 week. Before this treatment plants had been grown for 5 weeks in rock wool with complete nutrient solution. n = 3, SE is given. Statistically significant differences (p<0.02) are indicated by different letters above the bars. B, Seed germination of WT (circles) and psy2l (squares) sown on ½ MS salts with 1% sucrose without (open symbols) or with 5 μM gibberellic acid (closed symbols). After sowing, seeds had been stratified at 5°C for three days, then placed at 22°C in 16 h light/8 h darkness. Totally there were 90 seeds for each treatment and plant type, e.g. three repeats each with 30 seedlings, n = 3, SE is given. On day 1 and 2 psy2l is significantly different from WT with p<0.01. GA effects were not significant.