Effect of lycorine at different concentrations on seed germination (a), ASC content (b), amylase activity (d), and amylase gene expression (e). Inhibition of expression of GA biosynthesis genes by ABA and lycorine (b). Seeds for ASC content, RNA extraction, and amylase activity were sampled after imbibition in lycorine solution for 36 h and stored at –80 °C for various experiments. Values are means ± SD (n=5). Means denoted by the same letter did not differ significantly at P < 0.05 according to Duncan’s multiple range test.