湖南省马尾松优树资源分布与育种区划分研究

李午平　郭光复　唐效蓉　陈明皋　宋庆安　

摘　要：根据湖南省44县(市)优树初选与复选档案及湖南省马尾松产区区划研究结果，运用主分量分析方法，将325株优树聚类成4个地理类群，据此将全省划分为4个育种区，并根据各区特点确定育种目标.
关键词：马尾松优树； 主分量分析； 育种区； 育种目标
分类号：S791.248.04　文献标识码：A
文章编号：1000-2502(2001)01-0030-04

On the Distribution of Masson Pine Surplus Trees and Breeding Region Zoning in Hunan Province

LI Wu-ping（Forestry Academy of Hunan Province, Changsha 410004, Hunan, China）　
GUO Guang-fu（Forestry Academy of Hunan Province, Changsha 410004, Hunan, China）　
TANG Xiao-rong（Forestry Academy of Hunan Province, Changsha 410004, Hunan, China）　
CHEN Ming-gao（Forestry Academy of Hunan Province, Changsha 410004, Hunan, China）　
SONG Qing-an（Forestry Academy of Hunan Province, Changsha 410004, Hunan, China）　

Abstract：According to the preliminarily selection and re-s election data of 325 masson pine surplus trees in 44 countries of Hunan Province and the result of masson pine production region zoning in this province, the su rplus trees have been classified into 4 geographical clusters by means of princi pal components analysis. By these clusters the province has been divided into 4 breeding regions and each region s breeding targets have been confined.
Keywords：masson pine surplus tree; principal components an alysis; breeding region; breeding target