毛白杨优良无性系生长性状相关分析

对29个毛白杨优良无性系的10个生长因子观测数据进行统计分析,揭示了与毛白杨优良无性系生长量有显著相关关系的因子以及不同无性系生长性状相关程度的差异性,为毛白杨优良无性系的生长进行科学的管理以及种源选择提供一些依据。结果表明:毛白杨优良无性系的树高和胸径(生长量)等10个性状之间分别存在着不同程度的表型相关,其中与树高相关紧密的生长因子是:4 m处直径、最大侧枝角度、叶宽;与胸径相关紧密的生长因子是:4 m处直径,最大侧枝角度,最大侧枝粗度,2 m处直径。各无性系间性状的相关程度差异显著。

Correlation analysis on growth trait of supesior clones of Papulus tomentosa

In this paper, the data of 10 growth factors of the supesior clones of Populus tomentosa were used in this study. The result show that a different degree phenotyoe correlation amony 10 traits, such as tree抯 hight and breast diameter of the supesior clones of Populus tomentosa. The growth factors closely related to tree抯 height are as the diameter at 4m hight, angle of maximum branch and the leaf width. The growth factors closely correlated to the breast diameter are the diameter at 4 m, angle of maximum branch, the diameter at 2 m, the thick degree of maximum branch, the difference of correlaive degree among the traits of clones is do significant minant.