油松优树子代遗传变异及稳定性分析  

Analysis on Offspring Genetic Variation and Stability in Plus Tree of Pinus tabuleaformis carr.

作　　者：杨培华[1] 樊军锋[1] 刘永红[1] 马建权 谢俊锋 宫银利 

机构地区：[1]西北农林科技大学林学院,陕西杨凌712100 [2]延安市桥山林业局,陕西黄陵727300 [3]陕西省洛南古城林场,陕西洛南726107 [4]陕西省陇县八渡林场,陕西陇县721203

出　　处：《种子》2011年第3期17-21,共5页Seed

基　　金：国家林业局林业公益性专项(200704039);西北农林科技大学唐仲英育种基金专项(2009-78)

摘　　要：通过51个4年生油松优树子代在3个试验点的区域试验分析,结果表明：油松家系高生长在各试验点上差异均达极显著水平,3个试验点家系遗传力0.666-0.855,遗传变异系数9.05%-10.2%,遗传增益显著;家系×地点的互作效应达到显著水平,根据Eberhat和Russell模式对油松家系进行稳定性分析,结合生长表现将参试家系划分为5种类型,其中速生稳定型家系18个,平均遗传增益28%以上。Analysed the genetic variation and stability of 51 4-year-old Pinus tabuleaformis carr.in 3 sites.The results showed that there were highly significant differences about the height among the 3 sites.The hereditability of family varied from 0.666 to 0.855,the genetic variation coefficients varied from 9.05 % to 10.2 %,and the genetic gain was remarkable.The interaction between family and site achieved significant level.The stability of families was analyzed by Eberhat and Russell model.According to the growth,the involved families were separated into five types.The high-yield stable type had 18 families and the average genetic gain achieved 28%.

关 键 词：油松 优树 子代测定 遗传变异 稳定性 

分 类 号：S791.254[农业科学—林木遗传育种]