Rape varieties 1 and Zhongyouza 50 1 have the advantages of close planting resistance, high yield, high oil content, high quality, disease resistance, lodging resistance, cracking resistance and suitability for mechanized harvesting. Zhongyouza 19 is a two-line hybrid with semi-winter chemical induced male sterility in cabbage. ● Anti-bacterial nuclear degeneration; Strong lodging resistance.

2. Zhongyouza 50 1 was bred by the team of Academician Wang Hanzhong of China Academy of Agricultural Sciences. Zhongyouza 19 is the Oil Crops Research Institute of Chinese Academy of Agricultural Sciences. The variety comes from Zhongshuang 1 1× ×zy293.