福建柳杉小群体遗传变异的研究

<正>风媒授粉种子采自福建省14个成熟的柳杉天然林。在实验室和3个林场的苗圃中研究了种子品质和苗木的生长情况,发现我们所研究的大多数性状,在不同林分间或同一林分不同单株间都存在有显著的差异。一年生苗木高生长表现出高度的遗传稳定性,家系×地点互作方差分量非常小(0.38％),是不显著的。估计的家系高生长广义遗传力为0.905。

A STUDY OF THE INHERITANCE AND VARIATION OF THE SMALL POPULATIONS OF CRYPTOMERIA FORTUNEI IN FUJIAN PROVINCE

The open-pollinated seeds were collected from 14 mature natural stands of Cryp-tomeria fortunei in Fujian Province. The seed quality and seedling growth have been studied in laboratories and nurseries in three forest farms. It has been found that among different stands or different individual trees in the same stand there are significant differences in most of the characters studied. The height growth of the seedlings showed high inheritance stability; the variance component of the family x site interaction was very small and insignificant(0.38%)- The estimated family broad sense ; heritability in the height growth was 0.905.-83-