小花忍冬硬枝扦插影响因素分析

Analysis on Influencing Factors for Hardwood Cuttage of Lonicera tatarica var. micrantha

小花忍冬是观赏性和抗逆性兼具的优良树种之一。为了解决其种子繁殖子代分化变异大的问题,结合小花忍冬特性,通过不同基质、激素及不同浓度的处理,对其进行了硬枝扦插试验。结果表明:基质种类、激素种类、激素浓度都直接影响其扦插成活率,激素种类直接影响地下根系的生长量。其中,使用珍珠岩︰沙子=1︰2、NAA、100 mg/L组合,其扦插成活率均值达70%,效果最佳;使用激素ABT2号100 mg/L能较好地促进地下根系的生长。

Lonicera tatarica var.micrantha is a fine tree species with good ornament and strong stress resistance.In order to solve the great variation for differentiation of filial generation with seed breeding,combined with the characteristics of Lonicera tatarica var.micrantha,the hardwood cuttage experiment has been done with the treatments of different matrix,hormones and concentrations.The results show that matrix type,hormone type and the concentrations of hormone can directly influence the survival rate of cuttage,and the hormone types directly influence the growth of underground root.The average survival rate of cuttage can reach 70% by use of the combination of pearl salt ︰ sand = 1 ︰ 2,NAA,100 mg/L.Hormone ABT 2 of 100 mg/L can promote the growth of underground root system.