文献类型：期刊文献

中文题名：火炬松自由授粉子代多地点试验

英文题名：Progeny Test for the Open-pollinated Families of Loblolly Pine with Multiple Site

作者：黄少伟[1] 钟伟华[1] 黄凯[2] 姜景民[3]

第一作者：黄少伟

机构：[1]华南农业大学林学院;[2]广东省遂溪县林业试验场;[3]中国林业科学研究院亚热带林业研究所

年份：2001

卷号：14

期号：5

起止页码：509-514

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："七五"国家攻关课题"湿地松;火炬松种子园营建与经营技术研究"(75 - 0 7- 0 1- 38)内容之一

语种：中文

中文关键词：火炬松;自由授粉家系;子代测定;家系选择;遗传增益;地点试验

外文关键词：loblolly pine; open pollinated family; progeny test;family×site interaction;family selection; genetic gain

分类号：S791.255

摘要：对涉及 3个地点、5 2个自由授粉家系的火炬松子代测定 6a的生长性状进行分析 ,结果表明 :地点间生长差异极大 ,地点间生长量的差异与纬度的变化相对应 ,高纬度的富阳试点生长最好 ,低纬度的遂溪试点生长最差。家系间生长差异显著 ,且与地点存在显著的交互作用 ,不同的造林区应选用不同的优良家系。分别为富阳试点和英德试点选出适于各自栽植的优系 9个和 15个。本试验结果也为英德火炬松种子园定向供种及去劣疏伐提供依据。根据上述入选率采优系种子供适生地区造林 ,材积遗传增益为 5 .4 %～ 5 .8% ,若对初级种子园去劣疏伐 ,保留相应的优系 ,则材积增益可达 10 .8%～ 11.6%。
Fifty two open pollinated families of loblolly pine involved in a three site progeny test were analyzed on their growth traits at the age of 6 years .Extremely significant differences were found among sites,with the largest amount of growth in Fuyang,the high latitude site ,and the least amount of growth in Suixi,the low latitude site.Growth differences among families and effect of family × site interaction were both significant.Therefore,different superior families should be selected for different forestaion ares.We selected 15 and 9 superior families respectively for Yingde and Fuyang.Result of the test provided a basis for directional seeds supply and roguing of the primary seed orchard.With the above mentioned selection rate,when seed from the superior clones were collected for suitable forestation area,the genetic gain of volume was estimated to be 5 4%～5 8%.if the primary seed orchard was rogued and these superior clones were preserved,then the genetic gain of volume would be doubled ,amount to 10 8%～11 6%.