The results showed that the browning rate and death rate of the stem segments increased, while the initiation rate decreased, with the increases of colchicine concentration and duration.

• 结果表明: 随着秋水仙素浓度增加、处理时间延长,带芽茎段褐化程度加重,死亡率增加,而离体茎段的启动率则降低;