西北林学院学报2013，Vol.28Issue(4)：74-79,6.DOI:10.3969/j.issn.1001-7461.2013.04.15
日本落叶松自由授粉家系子代测定林分析与选择研究
Analysis and Selection of Progeny Test Forest of the Open Pollinated Family of Japanese Larch
摘要
Abstract
In order to select plus trees and provide materials tor the establishment ot advanced generation seed orchard in Xiaolongshan,growth characteristic analysis and genetic evaluation were conducted on the progeny test forest of the open pollinated family of Japanese larch.Most significant differences were observed in the diameter at breast height (DBH),tree height (H),and timber volume (V) among different families and groups.Most significant correlations existed among H,DBH,V,and crown size.The values of individual heritability of V,DBH,and H were 0.673 5,0.697 2,and 0.538 2,respectively,and the values of relative family heritability were 0.533 0,0.536 6,and 0.539 2,respectively.Values of individual heritability of V and DBH were higher than those of family heritability.Based on the timber volumes,as well as other traits,secondary generations of plus tree groups were obtained by combined selections of superior family and individual plus trees,which would be used as materials to establish the seed orchard,including 8 families and 30 individual plus trees.The average genetic gains of timber volumes of secondary generation plus tree selected were 159.7％.关键词
日本落叶松/自由授粉家系/遗传变异/选择/二代优树/高世代种子园Key words
Japanese larch/ free pollinated family/ hereditary variation/ selection/ secondary generation plus tree/ advanced generation seed orchard分类
农业科技引用本文复制引用
张正刚,马建伟,靳新春,王海仓,丁鹏举,胡勐鸿,潘春林,雷曙光..日本落叶松自由授粉家系子代测定林分析与选择研究[J].西北林学院学报,2013,28(4):74-79,6.基金项目
甘肃省林木良种科技工程关键技术研究(1102NKDE028). （1102NKDE028）
