文献类型：期刊文献

中文题名：湿地松半同胞家系主要经济性状的遗传分析及联合选择

英文题名：GENETIC ANALYSIS AND COMBINED SELECTION OF MAIN ECONOMIC CHARACTERS OF HALF\|SIB FAMILIES FOR SLASH PINE

作者：吴际友[1] 龙应忠[1] 余格非[1] 童方平[1] 姜景民[2]

第一作者：吴际友

机构：[1]林木无性系育种湖南省重点实验室;[2]中国林业科学研究院亚热带林业研究所

年份：2000

卷号：36

期号：z01

起止页码：56-61

中文期刊名：林业科学

外文期刊名：SCIENTIA SILVAE SINICAE

收录：CSTPCD;;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

基金：国家"八五"重点攻关项目! 85 0 1 0 3内容之一。

语种：中文

中文关键词：湿地松;半同胞家系;遗传变异;联合选择;经济性状

外文关键词：Slash pine, Half\|sib family, Genetic variation, Growth timber quality and form, Combination selection

分类号：S791.246;S722.3

摘要：对 1 98 1年营造的湿地松 43个半同胞家系测定林的研究结果表明 :家系树高、胸径、材积、干形、枝粗、木材密度等生长、形质和木材性状有显著的差异 ,具有适度的遗传力 ,而未发现管胞长度显著的家系效应。生长性状和木材性状在一定程度上受遗传因素所控制 ,树高、胸径、材积间呈正遗传相关关系 ,木材基本密度、管胞长度和材积生长相关关系不显著。据此 ,利用约束和无约束选择指数 ,根据纸浆材和建筑材不同材种要求 ,进行生长、形质和材性联合选择 ,评选出Ⅳ 4 7#、2 4 6 #、0 6 0 9#和 0 4 6 4#等 4个家系为最佳纸浆材家系 ,0 1 87#、0 4 6 4#和 0 6 0 9#等
The test result from slash pine experimental forest of 43 half\|sib family's planted in 1981 shows that there are significant difference in height, DBH (diameter at breast height), volume, stemform, branch diameter and timber density among different families, which possesses some heritability and the significant family effect of the tracheid length was not found; the growth and timber characteristics are controlled to certain extend by genetic factors. There are positive correlation among height, DBH and volume while the correlation among timber density, tracheid length and volume growth isn't obvious. Therefore, with the help of constraint and free selection indexes, and according to different demand between pulpwood and building timber, combination selection of growth, quality and timber properties,was carried out. Four families, No. Ⅳ 47 #,2 46 #,0 609 #and 0 464 #,are the best for pulp wood, and three families of NO. 0 187 #,0 464 # and 0 609 # are suitable for building timber.