摘要
Eight provenances and 190 open pollinated families of Eucalyptus urophylla were studied at ages of 1,1.5,2 and 3.5 years.There were significant differences among provenances in volume and among families in height, DBH and volume.The variations of growth characters are moderately inheritable.Based on the results of age to age genotypic and phenotypic correlations,the early selection for E.urophylla can be implemented at the age of 2 years.Superior provenances and families were selected on the basis of performance level.Selection results were also presented in this paper.
Eight provenances and 190 open pollinated families of Eucalyptus urophylla were studied at ages of 1,1.5,2 and 3.5 years.There were significant differences among provenances in volume and among families in height, DBH and volume.The variations of growth characters are moderately inheritable.Based on the results of age to age genotypic and phenotypic correlations,the early selection for E.urophylla can be implemented at the age of 2 years.Superior provenances and families were selected on the basis of performance level.Selection results were also presented in this paper.
出处
《林业科学研究》
CSCD
北大核心
1999年第4期428-432,共5页
Forest Research
基金
林业部遂溪林木良种基地建设 (1990~ 1994年 )项目!(林计 1986.1.117号文 )
关键词
尾叶桉
种源
遗传力
遗传相关
早期选择
Eucalyptus urophylla
provenance
family
heritability
genetic correlation
early selection
