白花泡桐天然杂种无性系自然接干性状的遗传变异研究  

Genetic Variation of Natural Stem-join Characters of Paulownia fortunei(Seem.) Hemsl. Natural Hybrid Clones

作　　者：叶金山[1] 胡伟华[1] 谢青[1] 杨文萍[1] 

机构地区：[1]国家林业局泡桐研究开发中心,河南郑州450003

出　　处：《西北林学院学报》2008年第4期78-82,共5页Journal of Northwest Forestry University

基　　金：河南省自然科学基金项目(0611032600)

摘　　要：运用田间试验和统计分析的方法研究了白花泡桐天然杂种无性系自然接干性状的遗传变异。结果表明:(1)自然接干性状在天然杂种无性系水平上具有广泛而明显的遗传变异性。(2)除通直度性状没有达到显著性差异外,其余的自然接干性状都有极显著性差异。(3)自然接干性状在天然杂种无性系间存在极显著的差异性。(4)接干高和通直度性状的高度变异性在影响白花泡桐天然杂种无性系自然接干性状的总体状况和一般表现上起着至关重要的作用。(5)N1和N11是参试无性系中自然接干性表现最好的2个无性系。(6)估算了一些重要遗传参数。The genetic variation of natural stem-join characters of Paulownia fortunei(Seem.) Hemsl.natural hybrid clones was studied by means of field test and statistical analysis.The results were as follows:(1) The natural stem-join characters had extensive and significant genetic variation at the level of P.fortunei natural hybrid clones.(2) Straightness of stem had no significant difference,but other natural stem-join characters had extremely significant difference.(3) The natural stem-join characters had extreme...

关 键 词：白花泡桐 天然杂种 自然接干性状 遗传变异 

分 类 号：S792.43[农业科学—林木遗传育种]