摘要
采用方差分析、遗传参数分析和聚类分析方法,在福建省华安县引种实验林进行西南桦(Betula alnoidesBuch.-Ham.ex D.Don)速生单株选择,从25个种源中筛选出8个优良种源,树高平均遗传增益为10.4%。对8个种源中69个家系进行聚类分析,选择出13个速生家系,树高的平均遗传增益为29.4%。运用K快速聚类法从95个单株中筛选出14株速生单株,其遗传增益为118.01%,增产效果显著,在闽南一带可用作无性繁殖材料,以加速西南桦引种造林良种化进程。
By means of variance, genetic parameters and cluster analysis methods, screening superior fast-growing individual plant of Betula alnoides Buch. -Ham. ex D. Don were studied in three levels from the introduction trial forest in Huaan County of Fujian Province. The results indicated that 8 fine provenances were selected from 25 provenances with 10.4% in the mean genetic gains of tree height. 13 fast-growing families were selected from 69 families in 8 provenances with 29.4% in the mean genetic gains of tree height. Using K fast cluster analysis, 14 superior individual plants were selected from 95 individual plants, their mean genetic gains were 118. 01%. The results showed that the superior individual plants exhibited obvious effect of yield increase and could be used as a good asexual propagation material to accelerate the course of introduction and afforestation in the South of Fujian Province.
出处
《植物资源与环境学报》
CAS
CSCD
2005年第4期30-35,共6页
Journal of Plant Resources and Environment
基金
福建省科学技术厅"速生优良树种西南桦
光皮桦快繁技术及应用研究"项目(2003N003)
关键词
西南桦
引种
选择
聚类分析
Betula alnoides Buch. -Ham. ex D. Don
introduction
select
cluster analysis
作者简介
陈伟（1969-），女，福建福清人，博士研究生，高级工程师，主要从事森林资源保护与阔叶树育种栽培。
