林业科学2012，Vol.48Issue(3)：45-50,6.
杉木无性系生长和材性变异及多性状指数选择
Clonal Variation in Growth and Wood Quality and the Multi-Trait Index Selection of Chinese Fir
摘要
Abstract
Two clonal trial stands of Chinese Fir ( Cunninghamia lanceolala) were used in this study, one was 19-year-old stand which included 38 clones, and the other was 17-year-old stand including 102 clones. The statistical analyses showed that there were very significant genetic variations in height, DBH, volume and ratio of heartwood ( Rbw) , wood basic density (pb) of the clones in the two stands. The repeatability of clones was in median to high level, and the genetic CV was different over the all five traits. There were very significant phenotypic and genetic correlations among height, DBH and volume, and negative correlations among growth, Rb, and pb. The selection method experiment indicated that index selection could improve volume, Rbw and pb, showing synthetically superior selection effects compared to any individual trait selection methods.关键词
杉木/无性系/材性/多性状指数选择Key words
Chinese Fir (Cunninghamia lanceolala) / clone/ wood quality/ multi-trait index selection分类
农业科技引用本文复制引用
王润辉,胡德活,郑会全,韦茹萍,黄越茂,蔡维就..杉木无性系生长和材性变异及多性状指数选择[J].林业科学,2012,48(3):45-50,6.基金项目
国家林业局林业公益性行业科研专项(201004050) （201004050）
广东省科技厅省院全面战略合作项目(2010B090301029) （2010B090301029）
广东省林业科技创新专项(2010KJCX007-1). （2010KJCX007-1）
