尾叶桉无性系多点遗传分析及优良无性系选择  

Growth and Genetic Analysis of Eucalyptus urophylla Clones in 3 Sites in Guangxi

作　　者：李光友[1] 徐建民[1] RISTO Vuokko 蒋虎 唐正涛 陆钊华[1] 

机构地区：[1]中国林业科学院热带林业研究所,广东广州510520 [2]广西斯道拉恩索林业有限公司,广西南宁530022

出　　处：《西北林学院学报》2006年第5期84-88,共5页Journal of Northwest Forestry University

基　　金：RITF/SE2003年科技合作项目"桉树纸浆林高产栽培试验研究"的部分内容

摘　　要：对广西3地点20个以尾叶桉为主要亲本的桉树无性系进行6、12、18个月生的性状分析与遗传测定。结果表明,生长性状在无性系、地点和无性系×地点交互效应上均存在极显著差异,试验可选择出生长优良的无性系;不同地点生长量表现为:山口>天堂>犀牛脚;18个月生时性状综合分析和评定表明,12、17、18号无性系适应性广,具速生丰产性,可试行推广利用,而2、3、5、6号无性系丰产性和稳定性差,缺少利用价值。3 plantations including 20 hybrid clones of Eucalyptus urophyUa were built at Shankou, Tiantang and Xiniujiao in Guangxi of China. Height, DBH and volume/hm^2 were investigated in 6, 12, 18 months old respectively. The results of variance and genetic analysis indicated that. 1） There were remarkable differences in height, DBH and volume/hm^2 among the clones, sites and clone 〉（site ; 2） Level of growth was Shankou〉Tiantang〉Xiniujiao; 3） Synthesis analysis of clones indicated that No. 12, 17, and 18 grew fast and steady in different sites, but No. 2, 3, 5 and 6 should be eliminated because of slow growth and bad adaptability.

关 键 词：尾叶桉无性系 生长分析 无性系×地点互作 早期选择 

分 类 号：S792.39[农业科学—林木遗传育种]