马尾松优树子代测定及亲本评定

本文采用福建省7个地区32个县47个马尾松林分的479株优树的自由授粉家系作测定材料。测定结果表明：13年生树高值大于遗传对照5％以上的家系有227个，占参试家系的47、4％。群体的变异量大于群体内个体的变异量，变异来源是多层次的。

Excellent Tree Progeny Determination and Parent Evaluation of Pinus massoniana

The determination results indicate that there are 227 13-year-old families whose tree height valueis over 5% higher than that of the genetic check families, accounting for 47. 4% of experimental families. Thepopulation variation amount is bigger than the individual variation amount within the population and the variation sources are multiple-level.