文献类型：期刊文献

中文题名：尾叶桉种子园群体改良自由授粉家系子代多点区域试验研究

英文题名：Progeny Test for the Open-pollinated Families of Eucalyptus urophylla in Multiple Sites

作者：徐建民[1] 李光友[1] 陆钊华[1] 白嘉雨[1] 卢国桓[2] 王尚明[3]

第一作者：徐建民

机构：[1]中国林业科学研究院热带林业研究所;[2]广东省新会市林业局;[3]中国国营林场开发总公司雷州林业局

年份：2003

卷号：16

期号：3

起止页码：277-283

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2000】；CSCD:【CSCD2011_2012】；

基金：NAP和FRDPP项目(1991-2001)"桉树速生丰产林培育技术的研究与推广"内容之一

语种：中文

中文关键词：尾叶桉;种子园;群体改良;自由授粉家系;子代测定;生长性状;遗传增益;多点区域试验

外文关键词：Eucalyptus urophylla; open-pollinated family; effect of family with site interaction; genetic gain

分类号：S792.39

摘要：对5个地点81个自由授粉家系尾叶桉子代测定3a的生长性状进行分析与遗传评估,结果表明:树高、胸径和材积生长量在家系、地点间和家系与地点交互效应上存在极显著的差异。通过选择确定了44、47、50、66、68和88号家系为广谱型优系,同时分别选出了适宜5个试点造林区的优系各5个。测试结果对新会大泽尾叶桉种子园实施良种分类定向供种和留优去劣的遗传间伐提供了依据。若根据广谱型和局地型优系按型分系采种,实施分类定向供种其材积遗传增益为3 37%～10 57%;若对种子园实施留优去劣疏伐,其遗传增益可达6 74%～21 14%。
Eighty one families of Eucalyptus urophylla involved in a fivesite progeny test were analyzed on their growth traits at the age of 3 The increments of tree height, dbh and volume were found to be extremely significant different among families, sites and the effect of family with site interaction. Six excellent families were selected for different afforestation sites, and 5 superior families respectively for Danzhou of Hainan Island, Leizhou, Xinhui, Heyuan, Raoping of Guangdong Province. The results of test provided a basis for directional seed supply and rouging seed orchard. With the selection rate above mentioned, when the seed from superior families were collected for suitable afforestation area,the genetic gain of growth volume was estimated to be 337% ～1057%, if the seed orchard was rouged and these superior families was preserved, the genetic gain of volume would be doubled, amount to be 674%～2114%. 