摘要
为评选出思茅松优树半同胞子代测定林中的优良家系,对思茅松子代测定林植株的各家系性状进行相关性分析和因子分析,从而确定材积和通直度作为评价思茅松生长优劣的关键因子;然后以材积和通直度为分析对象,对各家系的材积和通直度的平均值做t检验,结果表明:第1组93.2%的家系材积优于对照,72.7%的家系通直度优于对照,并选择出10个家系作为第1组的优良家系,其中材积最高超出对照148.7%,通直度优于对照51.4%;第2组97.9%的家系材积优于对照,95.7%的家系通直度优于对照,并选择出12个家系作为第2组的优良家系,其中材积最高超出对照80.3%,通直度优于对照51.6%。
To select elite families from the test forests of plus-tree half-sib progenies of Pinus kesiya var. langbianensis, the correlation and factors of every character of each family were analyzed, then timber volume and straight index were adopted as key factors to assess the growth quality of P. kesiya var. langbianensis ; taking timber volume and straight index as research objects, ‘t＇ test of timber volume and straight index of every family were performed, the result showed： in the first group, timber volume of 93.2 % of the families were better than the control, straight index of 72.7 % of the families were better than the control, and 10 families were selected as elite ones in the first group; in the second group, timber volume of 97.9% of the families were better than the control, straight index of 95.7% of the families were better than the control, and 12 families were selected as elite families in the second group, among of which the biggest volume was 80.3% higher than that of the control, and the highest straight index was 51.6% higher than that of the control.
出处
《福建林业科技》
北大核心
2008年第3期60-66,共7页
Journal of Fujian Forestry Science and Technology
基金
云南省科技攻关课题(2004NG05-01)
云南省技术创新人才培养计划(2006PY02-09)资助
关键词
思茅松
子代测定
相关性分析
因子分析
家系选择
Pinus kesiya var. langbianensis
progeny test
correlation analysis
factor analysis
family selection
