The invention provides a Chinese cabbage
selfing breeding method and belongs to the technical field of vegetable breeding. The method comprises the following steps: selecting proper Chinese cabbage varieties; treating Chinese cabbage seeds; fertilizing and performing
soil preparation; seeding; watering and fertilizing; spraying
saline water; and releasing bees and harvesting seeds. According to the method, the 2%
saline water is sprayed for destroying the incompatibility of Chinese cabbage,
pollination of the incompatible Chinese cabbage is promoted, and the
selfing retaining purity of the Chinese cabbage is improved; a
beehive of Colbert bumblebees is arranged beside a Chinese cabbage field and is used for Chinese cabbage
pollination, the Colbert bumblebees have long mouthparts, can attentively collect
pollen and pollinate the Chinese cabbage in a certain area as having an underdeveloped
information exchange system and are conductive to
pollen release of the Chinese cabbage by virtue of large
acoustic shock, and thus when
pollination is carried out by the Colbert bumblebees, the pollination rate of the Chinese cabbage is improved, the yield is improved, time and labor are saved, and the labor cost is reduced. According to the method, homologous strain self-pollination or pollination of heterogeneous strains in a same line can be performed, the
selfing breeding efficiency is high, and the cost is low.