杉木遗传变异组成试析  

A PRELIMINARY ANALYSIS ON GENETIC VARIANCE COMPONENT OF CHINESE FIR

作　　者：吕本树[1] 何贵平[1] 

机构地区：[1]中国林业科学研究院亚热带林业研究所

出　　处：《林业科学研究》1990年第2期186-189,共4页Forest Research

摘　　要：70年代以来,我国杉木遗传改良工作已发生了根本性的变化,不仅在生态造林区已相继选育出了一批速生型的优良家系、优良种源和优良无性系,而且还不同程度地在生产中得到了推广应用,取得了显著的经济效益。近年来,有关杉木多世代育种的探讨已有不少报道,但立论于遗传变异基础上,纵贯从群体到个体,综合多性状变异相关的见解却不多见,其主要原因或许是有意识地设置这方面的试验还显得不足之故。为此。Through the analyses on such traits as seed quality, seedling height and young tree growth of 104 Chinese fir families in 13 elementary seed orchards from 10 provinces or autonomous regions, genetic variance component of main economic traits among provenances and families within provenances, and genetic correlations between these traits were studied. According to the tree height growth, 15 better families were selected primarily.

关 键 词：杉木 遗传变异组成 产地-家系选择 种子园 

分 类 号：S791.27[农业科学—林木遗传育种]