Combining ability in Brassica oilseed crops

摘要：

Estimation of combining ability effects is a prerequisite for any successful hybrid breeding program. Combining ability of three Brassica napus, one Brassica rapa and four Brassica juncea cultivars were studied using line×tester crosses at main station of Dryland Agricultural Research Instiute (DARI). The effects of general combining ability (gca) for different characters showed that Rainbow have positive and highly significant gca effects for grain yield, pods per plant and grains per pod. The parents Landrace and Westar had significant positive gca effect for grains per pod. However, The Westar cultivar, had significant negative with highly significant specific combining ability (sca) effects. In general, crosses with high sca usually involved a high general combiner as one of the parents. On the base of the results, Rainbow and Landrace are good materials for transferring male sterility systems and beginning hybrid production program.

关键词： GCA Line × Tester SCA

作者: K.Alizadeh

作者单位: Dryland Agricultural Research Institute, P.O.Box 119, Maragheh, Iran

会议类型: 国际会议

会议名称: 第十二届国际油菜大会( The 12th International Rapeseed Congress)

会议地点: 武汉

会议语种:英文

页码: 45-47

在线出版日期: 2007-03-26（万方平台首次上网日期，不代表论文的发表时间）