泡桐接干类型划分及干形相关性状的分析

崔永兰　吕国政　石俊阁　

摘　要：在11年生泡桐杂交种试验林中选择有代表性的单株150棵，研究了23个与干形相关的性状．结果表明：泡桐接干类型分为难接干、徒长枝接干、连续接干3种；23个性状中有19个性状在不同接干类型间差异极显著；干形性状的前3个主导因子分别为接干材积、主干材积和主干尖削度．连续接干是泡桐干形选择的方向．
关键词：泡桐；干形性状；接干类型；变异
分类号：S792.43　文献标识码：A
文章编号：1000-2340(2001)01-0070-04

Determination of the types of joint stem and analysis of the stem form correlative characteristics of paulownia

CUI Yong-lan（Henan Agricultural University,Zhengzhou 450002,China）　
L Guo-zheng（Zhongmu Forest Farm,Zhongmu 451450,China）　
SHI Jun-ge（Liulin town government Jinshui District,Zhengzhou 450045,China）　

Abstract：One hundred and fifty representative paulownia trees were observed in eleven-year-old paulownia hybridization in order to research the characteristics related to stem form.The results are as follows:paulownia joint stem can be divided into three kinds:difficult joint stem,discontinuous joint stem,continuous joint stem.Nineteen characteristics out of twanty-three ones are significantly different.The three principal factors affecting the stem form characteristics are volume of joint stem,volume of primary stem and the tapering grade of the primary stem.Continuous joint stem is the direction of paulownia stem form selection.
Keywords：paulownia;stem form characteristics;type of joint stem;variability