激素对水仙鳞茎切块扦插繁殖的影响

Effect of Hormones on Propagation of Cuttings of Narcissus tazetta

[目的]研究不同激素配比对水仙鳞茎切块繁殖能力的影响。[方法]以‘玉玲珑’、‘金太阳’和‘秋珍珠’等3个水仙品种的鳞茎为试验材料,分别利用不同浓度的6-BA和KT进行处理,统计不同水仙品种切块繁殖情况。[结果]不同水仙品种切块繁殖能力差异显著,‘玉玲珑’切割后产生小鳞茎的能力强于‘金太阳’。使用外源激素6-BA和KT处理均能有效提升3个水仙品种的鳞茎切块繁殖系数,其中25 mg/L 6-BA+10 mg/L KT处理‘玉玲珑’切块效果较好,小鳞茎的增殖倍数是对照的1.98倍,50 mg/L 6-BA+10 mg/L KT处理‘金太阳’和‘秋珍珠’鳞茎切块的繁殖系数高,分别是对照的2.00倍和2.21倍。[结论]使用外源激素能够提升水仙的繁殖效率,加快水仙品种的推广应用。

[Objective]The aim to study the effects of different hormone ratios on the cutting and propagation ability of Narcissus tazetta.[Method]The bulbs of three N.tazetta varieties,Yulinglong,Golden Sun and Autumn Pearl were processed with different concentrations of 6-BA and KT,respectively,to calculate the propagation of different N.tazetta.[Result]The cutting ability of different varieties of N.tazetta was significantly different,and the ability of Yulinglong to produce small bulbs after cutting was stronger than Golden Sun.The use of exogenous hormones 6-BA and KT could effectively improve the propagation coefficient of the three N.tazetta varieties bulbs cut,among which 25 mg/L 6-BA+10 mg/L KT treatment Yulinglong was better,and the multiplication of small bulbs was 1.98 times that of the control.50 mg/L 6-BA+10 mg/L KT showed higher reproductive coefficients of Golden Sun and Autumn Pearl bulbs,which were 2.00 times and 2.21 times of the control,respectively.[Conclusion]Hormones would improve the reproduction efficiency of N.tazetta and speed up the popularization and application of N.tazetta.