贵州金丝桃扦插繁殖技术研究  

Research on the Cuttage Propagation Technique of Hypericum kouytcheouense

作　　者：龙成昌[1] 巫华美 周艳[1] 黄承玲[1] 

机构地区：[1]贵州省植物园,贵州贵阳550001 [2]贵阳东森植物有限公司,贵州贵阳550001 [3]贵州省生物研究所,贵州贵阳550001

出　　处：《北方园艺》2011年第18期29-32,共4页Northern Horticulture

基　　金：贵州省科学技术基金资助项目(黔科合J字[2009]2223号);贵州省科技创新能力建设资助项目(黔科合院所创能[2009]4008号)

摘　　要：以野生资源植物贵州金丝桃为试材,探讨插穗材料选取、插穗处理、外源激素、扦插基质及环境条件等因素对其扦插繁殖的影响,研究贵州金丝桃扦插育苗的生产实用技术优化方案。结果表明:半木质化枝条是贵州金丝桃扦插繁殖最好的插穗材料。插穗经1%NaOH溶液处理10min,插穗生根率显著提高。IAA、ABT-2生根粉均对贵州金丝桃的扦插生根有显著促进作用,同时可提高出圃的壮苗率;IAA使用效果略强于ABT-2。IBA对贵州金丝桃的扦插没有明显促进作用;NAA易对贵州金丝桃产生毒害。珍珠岩+腐殖土(1∶2)配比的基质是贵州金丝桃扦插比较理想的基质,使用该种基质的扦插生根率比较高且壮苗率最高。秋、冬季扦插时,环境温度是决定扦插生根率的关键因子,尽量提高环境温度和湿度,促进插穗提早生根,以提高壮苗率。Taking wild resources plant Hypericum kouytcheouense as materials,this study systematically discussed the influence of cuttings material selecting, cuttings treatment, exogenous hormones, cutting matrix and environmental conditions such as factors to cutting propagation of it, and mainly explored its production practical technology optimization scheme to cutting seedlings. The results showed that the half-lignifying branch was the best cutting propagation materials of Hypericum kouytcheouense. By 1% NaOH Solution immersing for 10 min,cuttings rooting rate increased significantly. IAA, ABT-2 were significant role in promoting cuttings rooting of Hypericum kouytcheouense,they also could improve the strong seedling rate when transplantation of seedlings. The effect of IAA was slightly stronger than ABT-2. IBA had no obvious promoter action to cuttings rooting of Hypericum kouytcheouense and NAA easily produce phytotoxicity to it. The pearliteq-humus（l＂ 2）was a ideal cuttage matrix, cutting rooting rate was higher and strong seedling the highest rate by using this kind of the matrix. In autumn and winter season,the environmental temperature was vital factor to cutting rooting rate, try to improve environmental temperature and humidity, promote rooting cuttings earlier for raising strong seedling rate.

关 键 词：贵州金丝桃 插穗选取 插穗处理 外源激素 扦插基质 

分 类 号：S662.1[农业科学—果树学]