摘要
中国蚕豆的栽培面积和总产量都占世界的50％以上,种质资源丰富,类型众多,为遗传育种提供了多样性的遗传背景材料。遗传育种工作者在蚕豆遗传规律,特别是与产量相关的数量性状方面也作了不少研究。通过对遗传相关、通径分析,聚类分析,以及遗传力和遗传进度的研究表明,蚕豆的单株荚数、单株粒数和单株有效分枝数与产量的关系最为密切,遗传变异幅度也较大。但是,这些性状的遗传力都较低。因此,期望通过早期对这些与产量密切相关性状的选择来达到高产育种的目的就较为困难,只能通过连续选择才能使这些性状的优良变异得以固定。
China possesses more than 50% of the world's faba bean area and production. Rich germplasm resources and various types of faba bean have been discovered in China, many of which can be used as breeding materials. A lot of investigations have been reported about the genetic analysis of faba bean characters, especially characters related to yield. The results of the analysis on the genetics correlations, path coefficient, systematic cluster, heritability and genetic advance indicated that there were close genetic correlations of yield to the pod number per plant, which had wide bigger variations. Because heritabilities of these characters related to yield were low, selection in early generations for increasing yield was difficult. To fix these useful variations, it is necessary to select successively.
出处
《上海农业学报》
CSCD
1993年第3期92-96,共5页
Acta Agriculturae Shanghai
关键词
蚕豆
遗传
数量性状
育种
Faba bean
Genetic study
Quantitative traits
