广西林业科学2023，Vol.52Issue(6)：713-718,6.DOI:10.19692/j.issn.1006-1126.20230606
思茅松无性系生长性状早晚相关研究及早期选择
Early and Late Research and Early Selection of Growth Traits of Pinus kesiya var.langbianensis Clones
摘要
Abstract
In order to explore possibility of early selection and optimal selection stand age in breeding of Pinus kesiya var.langbianensis,growth traits over years of 40 P.kesiya var.langbianensis high-yielding clones were measured.Trends in repeatability forces and rank,phenotypic and genetic correlation coefficients were ana-lyzed.Results showed that tree height,DBH and individual volume were extremely significantly different among all clones,which indicated that variations were rich.Repeatability forces were high.Rank correlation coeffi-cients of growth traits among P.kesiya var.langbianensis clones with different stand ages and 15-year-old P.kesiya var.langbianensis clones reached extremely significant levels,which indicated that early selection was feasible.Order of three correlation coefficients for tree height,DBH and individual volume was genetic correla-tion coefficient>phenotypic correlation coefficient>environmental correlation coefficient,which indicated that growth traits were mainly under genetic control.Tree height and DBH could be selected early at the sixth year.关键词
无性系/早晚相关/早期选择/思茅松Key words
clone/early and late correlation/early selection/Pinus kesiya var.langbianensis分类
林学引用本文复制引用
李思广,李宏斌,姜远标,杨斌..思茅松无性系生长性状早晚相关研究及早期选择[J].广西林业科学,2023,52(6):713-718,6.基金项目
云南省创新团队项目(202105AE160008) （202105AE160008）
云南省林业和草原科学院创新基金(MS2020-01) （MS2020-01）
