远缘杂交是发掘利用现有种质资源的重要途径,为创建油菜的某些新性状或新类型,1983年以来我们利用国内外的芸薹属资源,开展种间和属间杂交实验,得到了一批有特异性状的后代。无花瓣油菜不仅可提高光的利用率,且感菌核病率也大为降低(Mendham,N.J.等1981;Yates,D.J.等1987;傅寿仲等1990),是实现油菜更高产的重要途径。本文主要就甘蓝型油菜(Brassica Distant hybridization is to explore the use of existing germplasm resources an important way to create some new traits of rape or new type, since 1983, we use the Brassica resources at home and abroad, interspecific and intercross hybridization experiments to obtain A group of offspring with specific traits. Petal rape can not only improve the light utilization rate, but also greatly reduce the incidence of susceptible fungus (Mendham, N.J. et al. 1981; Yates, D.J. et al. 1987; Fu Shouzhong et al. 1990), which is an important way to achieve higher yield of rapeseed. This paper mainly on Brassica napus (Brassica