摘要
以原最适区所评选出的89株思茅松高产脂优树中的40株优树建立其嫁接试验林的方式,通过对此高产脂优树嫁接子代林的产脂力、林木胸径生长力及抗虫害能力作测定、分析,而进行了思茅松高产脂优树再选择的研究。经此再选择,基本确定了13株值得推广利用的思茅松高产脂优树,其产脂力比普通思茅松林木增产3倍以上,林木的年均胸径生长大于1 cm,抗虫率高于56%。
Based on the pre plus tree selection, choosing 40 plus tree individuals of Pinus kesiya var. langbianensis with high-yield resin, progeny forest was established by using grafted plants. The resin yield, DBH growth and resistance to pest of experimental trees were studied. On the basis of this selection, 13 promising individuals of Pinus kesiya var. langbianensis were selected out, the resin yield was 3 times more than the normal level, average annual DBH growth was higher than 1 cm, and the resistance ratio to pest was higher than 56 %.
出处
《西部林业科学》
CAS
2008年第3期1-5,共5页
Journal of West China Forestry Science
基金
云南省科技攻关项目(2001NG28和2004NG05-04)
关键词
思茅松
产脂
优树
再选择
Pinus kesiya var. langbianensis
resin yield
plus tree
selection
