马尾松优良种植材料现实遗传增益验证  

Certification of Actual Genetic Gains from Good Planting Materials in Pinus massoniana

作　　者：陈跃 周志春[2] 吴吉富 戴德升[2] 

机构地区：[1]福建省南纸股份有限公司,福建南平353000 [2]中国林业科学研究院亚热带林业研究所,浙江富阳311400 [3]福建省武平县林业局,福建武平364300

出　　处：《林业科学研究》2003年第2期203-208,共6页Forest Research

基　　金：世行贷款国家造林项目"马尾松速生丰产林研究与推广"课题;国家"十五"科技攻关项目"南方主要针叶用材树种新品种选育及培育技术"子课题(2002BA515B0102);中国林科院亚林所与福建省武平县人民政府科技合作项目

摘　　要：利用设置在福建省武平县的马尾松遗传增益测定林材料,以验证优良种源、母树林及种子园混系的现实遗传增益。种源中试林和示范林测定结果都显示,选用优良种源具有显著的增产效果。在较好立地上,8年生时广西宁明和广东信宜种源的高径生长分别增益17%～47%和12%～25%。通过福建武平、江西吉安、广东信宜和广西宁明4处母树林子代5年生测定林材料,未发现预期显著的改良效果,有些母树林子代生长甚至低于相应试验对照。广西藤县和贵州黄平种子园混系在不同地理和立地环境上的生长表现验证了种子园混系较高的遗传增益,但这种增益估算值与测试点立地条件和种子园无性系构成有关。广西藤县种子园混系只有在较好立地上增产显著,而在较差立地上则难显其增益效果。贵州黄平种子园混系因速生和遗传稳定性高,在不同立地上都具有较高的遗传增益。The genetic gain test plantations of masson pine located in Wuping of Fujian (China) were used to certificate realized genetic gain of superior provenances, seed stands and clonal seed orchards. Pilot and demonstration plantation indicated that application of superior provenance will bring on marked increase of productivity. At good site, the genetic gains of tree height and DBH at age 8 for both superior provenances (Ningming of Guangxi and Xinyi of Guangdong) were 17%～47% and 12%～25% respectively. Progeny of four seed stands at age five (including Wuping of Fujian, Jian of Jiangxi, Ningming of Guangxi and Xinyi of Guangdong) did not show significant expected genetic gain. The progeny of some seed stand was not as good as check. Growth performance of two seed orchard seedlots (Tengxian of Guangxi and Huangping of Guizhou) at different latitude and site demonstrated high realized genetic gains which were related to site condition tested and clone constitute of seed orchard. Marked genetic gain of seed orchard seedlot from Tengxian of Guangxi was only found at good site. The genetic gain of seed orchard seedlot from Huangping of Guizhou was high in spite of site condition, because of its high growth rate and genetic stability.

关 键 词：马尾松 种源 母树林 无性系初级种子园 现实遗传增益 

分 类 号：S791.248[农业科学—林木遗传育种] S722[农业科学—林学]