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油松优树半同胞家系子代遗传变异与选择
引用本文:陈建中,李悦,李国锋,李军,杜清平,王晓茹.油松优树半同胞家系子代遗传变异与选择[J].河南农业大学学报,2006,40(2):146-151,160.
作者姓名:陈建中  李悦  李国锋  李军  杜清平  王晓茹
作者单位:1. 北京林业大学,林木、花卉遗传育种教育部重点实验室,北京,100083
2. 河南省种苗站,河南,郑州,450003
3. 辉县市林业局,河南,辉县,453636
4. 中国科学院植物研究所系统与进化植物学重点实验室,北京,100093
摘    要:对中部种子区晋南豫北亚区的14~15年生油松的114个优树自由授粉家系单地点测定结果进行方差分析和遗传分析.结果表明,树高、胸径和冠幅3个生长性状在家系间差异显著,家系内株间变异量是家系间变异量的6倍,树高家系遗传力0.6,胸径的家系遗传力最高0.64,冠幅的家系遗传力最小0.51,且3个性状的家系遗传力高于单株遗传力;对油松材积以25%的比例后向选择,油松种子园子代期望遗传增益为16%,高于前向选择,入选家系的育种值为0.99,显示出良好的育种前景.

关 键 词:油松  子代测定  育种值  遗传增益
文章编号:1000-2340(2006)02-0146-06
收稿时间:2006-01-23
修稿时间:2006-01-23

Study on the Genetic Variations of Half-Sib Progeny Testing and Advanced Selections of Pinus taburaeformis
CHEN Jian-zhong,LI Yue,LI Guo-feng,LI Jun,DU Qing-ping,WANG Xiao-ru.Study on the Genetic Variations of Half-Sib Progeny Testing and Advanced Selections of Pinus taburaeformis[J].Journal of Henan Agricultural University,2006,40(2):146-151,160.
Authors:CHEN Jian-zhong  LI Yue  LI Guo-feng  LI Jun  DU Qing-ping  WANG Xiao-ru
Institution:1. Key Iaboratory of Genetic and Breeding in Forest Trees and Ornamental Plants, Beijing Forestry University, Beijing 100083, China;2. Henan Province Seedlings Station, Zhengzhou 450003, China; 3. Huixian County Municipal Forestry Bureau, Huixian 453636 , China; 4. Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093,China
Abstract:Based on 14-15 years tree growth in one testing site,114 open-pollinated families of plus tree from three seed sources were tested.The results indicated that there are significant differences in the Height,Diameter and Crown among the different families;The variation Among families is six times as much as that between families;the heritability of height is just middle,only 0.6,that of the Diameter is the highest,up to 0.64 as well as that of Crown of tree is only 0.51;The family heritability is much higher than the single tree heritability;Taking the backward-selection by 25%,the expected genetics gains is 16%,exceeding 8%the forward-selections,and the breeding value of the families selected is up to 0.99,which indicates the breeding potential.In conclusion I discuss the selection technique,point out the direction for the development and the strategy of Pinus taburaeformis seed orchard.
Keywords:Pinus taburaeformis  progeny testing  breeding values  genetics gains
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