Chinese cabbage selfing breeding method

Abstract

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.

Description

technical field [0001] The invention relates to the technical field of vegetable breeding, in particular to a method for self-breeding Chinese cabbage. Background technique [0002] Cabbage is native to northern my country and is a leafy vegetable of the genus Brassica in the family Brassicaceae, usually referring to Chinese cabbage; it also includes pak choy and cabbage, a cultivar of cabbage, namely "cabbage" or "cabbage". Introduced to the south, it is cultivated in all parts of the north and south. Cabbage is an important vegetable indispensable in people's life. It is delicious and nutritious. It is known as the "king of dishes" and is loved by the masses. Evolved from brassica. It is eaten as tender bulbs, rosette leaves or flower stems. The cultivation area and consumption rank first among all kinds of vegetables in China. Self-incompatibility refers to the phenomenon that the sexes of a certain plant have normal functions, but cannot carry out self-fertilization ...

AI Technical Summary

Problems solved by technology

However, before the Chinese cabbage plants enter the initial flowering stage, the whole plant is covered with an isolation net to realize self-pollination. The breeding efficiency of the same-plant self-pollination is low and labor-intensive, so it cannot be widely popularized.