两种野生花灌木硬枝扦插繁殖试验  

Studies on Hardwood Cutting of Two Wild Shrubs

作　　者：徐兴友 郭学民[1] 王同坤[1] 尹伟伦[2] 王华芳[2] 

机构地区：[1]河北科技师范学院生命科学系,河北秦皇岛066600 [2]北京林业大学生物科学与技术学院,北京100083

出　　处：《西北林学院学报》2005年第2期104-106,120,共4页Journal of Northwest Forestry University

基　　金：河北省自然科学基金资助项目(01220133D)

摘　　要：以燕山东段两种野生花灌木蚂蚱腿子(Myripnoisdioica)和胡枝子(Lespedezabicolor)为材料,进行了硬枝扦插研究。结果表明:(1)两种花灌木均为皮部生根类型,蚂蚱腿子不形成愈伤组织,胡枝子仅有少量插穗产生极微量的愈伤组织;(2)两种花灌木的最适外源激素和浓度并不相同,其中100mg·kg-1的NAA对蚂蚱腿子的生根率影响最显著;100mg·kg-1的IBA可有效提高胡枝子的生根率、根长及不定根根数。Hardwood cuttings of two wild shrubs Myripnois dioica and Lespedeza bicolor in East Yanshan Mount were studied. The results are as follows: 1. The type of rooting position of both belongs to bark rooting one. Cuttings of Myripnois dioica do not develop callus, and cuttings of Lespedeza bicolor can develop little callus. 2. The fittest exogenous hormones and their concentrations of both are different. It is most significant that the treatments of NAA100 mg·kg^(-1) influence the rooting percentage of Myripnois dioica, and the treatments of IBA100 mg·kg^(-1) can availably promote the rooting percentage, adventitious root length and numbers of Lespedeza bicolor.

关 键 词：花灌木 扦插繁殖试验 野生 愈伤组织 胡枝子 燕山东段 硬枝扦插 生根类型 外源激素 生根率 蚂蚱 NAA IBA 不定根 插穗 根数 根长 

分 类 号：S685[农业科学—观赏园艺] S792.23[农业科学—园艺学]