摘要
在福建马尾松优良源区中,采取5株优势木对比法选择优树,并在3个地点营建马尾松实生种子园.遗传测定的结果表明:参试144个家系的胸径、树高、材积、结实等性状的遗传效应均达极显著差异,从马尾松优良种源区中再选择优良单株是有效的.对3个测定点的胸径,树高和材积进行聚类分析,结果把参试的144个家系分为5类,选择前2类速生和较速生类型,平均遗传增益,树高为5.02%,胸径为4.98%,材积为11.97%.对3个测定点的结实性进行综合分析,把参试的家系分为5类,选择前2类为极高产和高产类型,选择的平均遗传增益为5.44%.对生长性状和结实性进行总评价,将144个参试家系分为9类,其中速生高产,速生中产,生长中等高产3种是选择类型,共选择32个优良家系,其选择的平均材积遗传增益为5.87%,结实性平均遗传增益为5.21%.
Dominant trees by 5 comparison trees selection method in Masson pine progeny testing of Fujian province were selected, and seedling seed orchard for mason pine in 3 experimental sites were builtThe genetic testing results indicated that the genetic variance was greatly significant on the diameter at breast height, height, volume and seed production traits of this 144 testing familiesIt was effective to reselect eminent individual trees in excellent provenances of Masson pine Through clustering analysis on growth traits of 3 experimental sites, these 144 families were divided into 5 typesThe former 2 fastgrowth types were selected,whose average genetic gains of height, diameter at breast height and volume were 502%, 498% and 1197% respectively Classified by seed production trait, all testing families were also divided into 5 types The former 2 were individually best highproduct type and highproduct type, their average genetic gain was 544% The 144 families were classified 9 types by synthesis analysis on growth trait and seed production traitThe former 3 types of fastgrowth and highproduct, fastgrowth and mediumproduct, and moderategrowth and highproduct were selected, which included 32 excellent families, whose average volume genetic gain and seed production genetic gain were 587% and 521% respectively
出处
《福建林学院学报》
CSCD
北大核心
2003年第3期266-269,共4页
Journal of Fujian College of Forestry
基金
福建省科学技术委员会科学基金资助项目(97-Z-4).
关键词
马尾松
子代测定
实生种子园
遗传测定
Masson pine
seedling seed orchard
genetic testing
selection
