马尾松种子园无性系结实量、种实性状及遗传参数的分析

编号 zgly0000326244

文献类型 期刊论文

文献题名 马尾松种子园无性系结实量、种实性状及遗传参数的分析

学科分类 220.99;林学其他学科

作者 徐进  王章荣  陈亚斌  丘进清 

作者单位 南京林业大学森林资源与环境学院 

母体文献 林业科学 

年卷期 2004,40(4)

页码 201-205

年份 2004 

分类号 S791.248 

关键词 马尾松  种子园  无性系  结实量  种实性状  遗传参数 

文摘内容 The cone and seed characters of Pinus Massoniana were investigated in a clonal seed orchard for two successive years(1998 and 1999). The results showed that significant genetic variation existed among clones, while variation within clone had not come up to remarkable standard. Broad sense herit ability of cone and seed characters in P. massoniana were influenced by genetic factors, most of them were at over middle level. There was a extremely significant difference in the correlation coefficients among the characters of cone and seeds, and the correlation coefficients of the same character in different years were at the extremely significant level, which indicated that the clones were quite stable from year to year in cone and seed quality and size.At last, the comprehensive evaluation was estimated in 140 clones by main index of reproductive capacity. The genetic gain of cone yield of a single tree, the seed numble of a single cone, and full seed percentage, and reselection of clones were discussed under different selection intensities。