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甘蓝型油菜(Brassica napus L.)原产欧洲,在三、四十年代分别由日本和英国引入我国。最早的品种仅胜利油菜和早生朝鲜。近十多年来引入的品种增多,有20多个国家的4 00多个品种。到1982年,我国利用这些资源育成的甘蓝型油菜品种(系)有225个。生产上的种植面积也日益扩大,约占油菜总面积的70％以上。 在油菜生态分类方面,研究还不多。禹长春(1931)根据油菜品种主茎和分枝的不同发
Brassica napus L. was originated in Europe and was introduced into China by Japan and the United Kingdom in 1930s and 1940s respectively. The earliest species only victory rape and early North Korea. Over the past decade or so the introduction of more varieties, more than 20 countries, more than 400 varieties. By 1982, there were 225 varieties of Brassica napus cultivated in China by using these resources. Production of the growing area is also growing, about the total area of rapeseed more than 70%. In rape ecological classification, research is not much. Yu Changchun (1931) According to different varieties of rape stems and branches of hair