文献类型：期刊文献

中文题名：广西凭祥西南桦种源家系选择试验Ⅰ．幼林生长性状的变异

英文题名：Provenance and Family Trials for Betula alnoides in Pingxiang,Guangxi Ⅰ. Early Variation of Growth Traits

作者：郭文福[1] 曾杰[2] 黎明[1]

第一作者：郭文福

机构：[1]中国林业科学研究院热带林业实验中心,广西凭祥532600;[2]中国林业科学研究院热带林业研究所,广东广州510520

年份：2008

卷号：21

期号：5

起止页码：652-656

中文期刊名：林业科学研究

外文期刊名：Forest Research

收录：CSTPCD;;Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：国家“十一五”科技支撑子专题“优质珍贵用材树种西南桦新品种选育”(2006BAD01A1603-3);“热带林木基因资源创新利用研究”(2006BAD13B07-2)的部分内容

语种：中文

中文关键词：西南桦;种源;家系;生长性状变异

外文关键词：Betula alnoides; provenance and family test; growth variation

分类号：S722.7

摘要：应用25个地理种源400余个家系在广西凭祥进行西南桦种源家系联合筛选试验,对1～4年生幼林进行了生长性状遗传变异分析,结果表明:(1)不同西南桦种源间和家系间的树高和胸径生长均差异极显著;(2)各种源树高和胸径均与其产地经度极显著相关;(3)不同林龄间种源和家系的树高和胸径生长量的相关分析表明,种源选择的可靠性逐年增加;(4)以4年生时生长性状作早期评价,发现大多数优良种源、家系来自广西,可见西南桦种源选择以就近种源较好。
A provenance and family trial of Betula alnoides was conducted in Pingxiang of Guangxi, with 25 provenances and 400 families involved. The genetic variation of growth traits were analyzed in the first four years. It was shown that there were highly significant differences in height （H） and diameter at breast height （DBH） among provenances as well as families, and the height and DBH of provenances were remarkably correlated to the longitudes of their seed sources, respectively. It was inferred that provenance selection was more highly reliable with age of the tree getting older based on the result of correlation analysis on growth performance at different ages, and the priority should be given to the provenances near the site for plantation development of this species since most provenances from Guangxi grew the best.