不同外源激素浓度对黑果腺肋花楸嫩枝扦插生根效果的影响  

Effect of Different Kinds of Exogenous Hormone Concentrations on Cutting Rooting of Aronia melacarpa Twigs

作　　者：潘越[1] 卢明艳[1] 杜研 张浩 张东亚[1] 张富玮 PAN Yue;LU Mingyan;DU Yan;ZHANG Hao;ZHANG Dongya;ZHANG Fuwei(Garden and Landscape Research Institute,Xingjiang Academy of Forestry Sciences,Urumqi,Xinjiang 83000)

机构地区：[1]新疆林业科学院园林绿化研究所,新疆乌鲁木齐830000

出　　处：《北方园艺》2018年第16期121-125,共5页Northern Horticulture

基　　金：国家科技部国际科技合作资助项目(2014DFR31070)

摘　　要：以黑果腺肋花楸为试材,通过不同外源激素浓度对其嫩枝扦插生根效果的影响,基于主成分分析法对各处理组合的扦插效果进行了综合评价。结果表明:经不同浓度外源激素处理插穗生根性状影响较大,其中分枝数、一级根根数、二级根根数和根长变异程度较大,达70%以上。经因子分析提取出2个特征根>1的主成分,累计方差贡献率达89.109%。综合得分来看,经500mg·L^(-1)的ABT1综合得分最高,插穗根系最多;经800mg·L^(-1)激素处理的插穗次之,生根率与苗高最高;对照(CK)生根性状各项指标均为最低。在生产推广过程中应根据育苗需求有选择性的配置激素浓度。Aronia melacarpa was taken as test material,effects of different kinds of hormone concentration exogenous on the rooting effect of the shoots were studied.PCA was used to evaluate the treatment combination which effect on cutting.The results showed that there was a large variation of rooting characteristics by different concentrations of exogenous hormone,among branching number,primary root number,secondary root number,root length,which were more than 70%.Two principal components which characteristic root were more than one were extracted by PCA and their cumulative variance contribution rate reached 89.109%.Overall,500 mg·L^-1 of ABT1 had the highest score with the rooting number,800 mg·L^-1 of ABT1 followed,which had the highest rooting rate and seedling height,CK had the lowest score for rooting traits.In the process of production promotion,hormone concentration should be selectivly configurated according to the requirements of seedling.

关 键 词：黑果腺肋花楸 嫩枝扦插 外源激素 生根性状 主成分分析 

分 类 号：S661.204.3[农业科学—果树学]