南京林业大学学报（自然科学版）2017，Vol.41Issue(3)：189-192,4.DOI:10.3969/j.issn.1000-2006.201507061
26年生马尾松初级种子园半同胞子代变异及家系选择
Open pollination progeny test and family selection of 26-year-old Pinus massoniana Lamb.seed orchard
摘要
Abstract
[Objective] To determine genetic variation and selection evaluation of the entire alternation cutting period of masson pine (Pinus massoniana Lamb.) half sibling families could provide a reliable basis for high generation genetic improvement for masson pine.[Methods] Long-term tree height,DBH and wood volume were analyzed based on the 169 half compatriot progeny test forest of 26-year-old masson pine seed orchard in the Nanning Forestry Division.[Results] Tree height,DBH and wood volume were significantly different among families,which indicated the primary clonal seed orchard of masson pine had rich variation among the half compatriot and great improvement potential.Family wood volume growth was lower than that of the Gupeng provenance by 2.96％ and lower than that of the Wuming provenance by 5.33％.This indicated that some trees had better genotypes.The family heritability of tree height,DBH and volume were 0.555,0.466 and 0.423,respectively,in medium-high heritability.The individual heritability of those three was 0.219,0.128 and 0.111,in low heritability.Both the family and individual heritabilities represented as tree height ＞ DBH ＞ wood volume and tree height had strong heritability.[Conclusion] Based on the selection index of the family mean wood volume and volume variation coefficient,37,98,107,113 and 137 were selected as superior families;these could be used for the high generation genetic improvement of masson pines.关键词
马尾松/无性系种子园/子代林/家系选择Key words
Pinus massoniana Lamb./seed orchard/progeny test plantation/family selection分类
农业科技引用本文复制引用
谭健晖,冯源恒,黄永利,杨章旗..26年生马尾松初级种子园半同胞子代变异及家系选择[J].南京林业大学学报（自然科学版）,2017,41(3):189-192,4.基金项目
八桂学者专项经费项目(2011A015) （2011A015）
“十三五”国家科技支撑计划(2015BAD09B010202) （2015BAD09B010202）
广西科技项目(桂科AD16380010) （桂科AD16380010）
广西林业科技项目(桂林科字[2016]第1号) （桂林科字[2016]第1号）
