马尾松优树子代性状相关性的研究

对马尾松优树子代从地点间、性状间、早—晚期间等方面进行了相关分析， 结果表明： ①马尾松优树子代树高、胸径、材积等生长性状在性状间保持高度的相关性， 试验点间呈中度以上相关； ②树高、胸径生长早—晚期均能保持相对一致， 用 ８ 年生时马尾松优树子代的生长表现来预估 １３ 年生左右时优劣具有一定的可行性； ③造林成活率、虫害与生长性状呈中度、显著的负相关， 选择速生马尾松优树子代造林需解决造林成活率、虫害防治等问题。

Study on the Correlation of Progeny Characters of Pinus massoniana Plus Trees

The results indicate that the growth characters of height,dbh and volume of Pinus massoniana plus tree progeny keep the high correlation among the characters and assume the over intermediate correlation among the experimental places;the growth early late stage of height and dbh keeps the relative identity;and the planting survival rate,insect injury and growth characters assume the intermediately negative correlation.