不同种源青杨幼树的生长特性  

On growth character of young trees of Populus cathayana of different provenances

作　　者：高建社[1] 刘玉媛[1] 符毓秦[1] 符军[1] 王军[1] 杨自湘[2] 

机构地区：[1]西北农林科技大学林业科学研究院,陕西杨凌712100 [2]中国林业科学研究院林业研究所,北京100091

出　　处：《浙江林学院学报》2004年第1期115-118,共4页Journal of Zhejiang Forestry College

基　　金：八五"国家科技攻关资助项目(85 018 01 07)

摘　　要：应用田间生长量实测法和统计分析方法研究了22个不同种源青杨Populuscathayana幼树的生长特性。结果表明:所有参试青杨种源间和无性系间的生长特性均有显著差异。生长较好的卢氏、洛南、长安等6个种源,其内部的无性系间亦有差别,每一种源内部都有生长较好的无性系,这说明进行林木杂交育种时,在优良的种源中选择好的单株作杂交亲本也是有意义的。. The growth characters of 22 young trees of Populus cathayana of different provenances are studied by the methods of field investigation and statistics analysis. The results show that there are significant difference among the growth characters of young trees of all provenances and clones. Young trees of P.cathayana from Lushi, Luonan, Changan and other provenances grow well, but there are obvious differences among clones. Young trees of every provenance have well grown clone,which indicates that choosing a good tree of super provenance as cross parent is meaningful when we conduct tree hybridization breeding.

关 键 词：森林培育学 青杨 种源 生长特性 亲本选择 

分 类 号：S723.13[农业科学—林木遗传育种]