Germinating breeding method of Chinese pear cross-breed

Abstract

The invention discloses a method for germinating Chinese pear hybrid seeds, which comprises the following steps of: A, Chinese pear allocarpies picking; B, fruit sorting: sorting according to grade to reduce the cross infection of fruit surfaces; C, pre-storage: storing Chinese pear allocarpies of different grades in a ventilating shade place in advance; D, fruit refrigeration: placing the pre-stored fruit in a refrigerated cabinet for refrigeration and keeping the temperature in the refrigerated cabinet constant; E, seed separating and cleaning: removing fruit pulp to obtain the Chinese pear hybrid seeds and rinsing the Chinese pear hybrid seeds with clean water; F, seed sand storage: immersing the seeds in warm water for soaking the seeds and then storing the seeds in sand; and G, sowing: after the seeds germinate, sowing the germinated seeds in a prepared seedling box on a warm day. The method is easy to implement and simple and convenient in operation, and improves the germination rate of the Chinese pear hybrid seeds due to the fact that the Chinese pear allocarpies are stored in the refrigerated cabinet for refrigeration till the Chinese pear seeds are completely ripen in the fruit and then the seeds are stored in sand.

Description

technical field [0001] The invention belongs to the technical field of fruit tree breeding, and more specifically relates to a method for accelerating the germination of sand pear hybrid seeds. In the breeding work, the problem of low germination rate of hybrid seeds has improved the germination rate and uniformity of sand pear seeds. Background technique [0002] Sand pear (Pyrus pyrifolia Nakai) is native to the Yangtze River Basin in my country and distributed in the central, southern and western provinces of China. It is suitable for cultivation in warm and rainy areas. It has strong heat and drought resistance, and the flesh of sand pear is tender and crisp, juicy and fragrant. , Sweet and sour, deeply loved by the working people. However, due to the high temperature and high humidity during the fruit ripening stage of the pear, the development of the mesoembryo of the pear seed did not reach the physiological after-ripening, and the vigor of the mesoembryo of the seed ...

AI Technical Summary

Problems solved by technology

This method has a low germination rate of hybrids and cannot meet modern breeding techniques. How to break the dormancy of sand pear seeds and improve the germination rate and uniformity of sand pear seeds has become an urgent problem for sand pear breeders.

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