油松双列杂交试验配合力分析  

Combining Ability Analysis on the Main Characters of Pinus tabulaeformis

作　　者：郭俊荣 杨培华 谢斌 王亚峰 

机构地区：[1]陕西省林业科学研究所

出　　处：《西北林学院学报》1997年第4期13-18,共6页Journal of Northwest Forestry University

基　　金：陕西省科委"七五"科技攻关项目

摘　　要：对５个油松亲本双列杂交１年生苗高和６年生树高、地径、冠幅的一般配合力、特殊配合力、反交效应及配合力效益值进行测定计算和分析，结果表明，在油松杂交后代中存在着明显的遗传差异。这些差异主要取决于亲本的一般配合力、特殊配合力和反交效应，但一般配合力占优势。并选择出遗传增益较高的两个杂交组合。A diallel cross, including selfe and reciprocals,of fine Pinus tabulaeformis parents was analyzed. Results showed that there have heredity differences obviously existed in F1 Pinus tabulaeformis .General combining ability(GCA), specific combining ability(SCA),reciprocals effects of parents decided the heredity differences. But the GCA was the main one. And two cross societies of the higher genetic gain was selected.i.e.,G36×G3 and G36×G33.

关 键 词：油松 双列杂交 配合力 反交效应 

分 类 号：S791.254[农业科学—林木遗传育种]