A method to improve the cross-pollination and seed setting rate of 'Guangzhou' cherry and 'China red' cherry

Abstract

The present invention discloses a method for improving the Guangzhou cherry blossom and China Red cherry blossom hybridization pollination setting rate. According to the present invention, different cherry blossom varieties having different flowering phases are adjusted to flower at the same period so as to ensure the freshness of the hybridization pollination pollen, improve the hybridization pollination setting rate, and improve the flexibility of male parent and female parent selection. According to the present invention, after the female parent is subjected to emasculation, the pollination is instantly performed, such that the operation is simple, and the female parent is prevented from damage during the multiple bagging and bag breaking processes; after completing the hybridization pollination, the white transparent slight thin plastic bag is used to sleeve, wherein the cherry blossom branch is slender and weak and easily droops after being sleeved by the kraft bag, and the cherry blossom branch is easily broken in the wind and rain weather so as to cause the pollination failure; and the white plastic bag of the hybridization fruit with the characteristic of primary pollination success is released, and the white nylon mesh bag with the compact meshes is used to sleeve, such that the normal growth development of the fruit is not affected, the bird foraging can be prevented, the united fruit harvest is easily achieved, and the large area hybridization pollination fruit ripening harvest efficiency is substantially improved.

Description

[0001] Technical field: [0002] The invention belongs to the field of plant breeding, and in particular relates to a method for improving the hybrid pollination and seed setting rate of 'Guangzhou' cherry and 'China red' cherry. [0003] Background technique: [0004] Sakura refers to the general term for flowers and trees with ornamental value in the genus Sakura. At present, Japan is the country that cultivates the most varieties of cherry blossoms, with more than 300 varieties. However, most of the cherry blossoms in my country are still in the stage of research on the number of seedlings such as the introduction and domestication of a few cherry blossom (variety), sowing seedlings, grafting seedlings, cutting propagation and tissue culture. There are very few researches on the cultivation of new cherry blossom varieties. Studies on cross-pollination of Fukien cherry blossoms and related species. [0005] Common cross-pollination at present, specific technical steps are: (...

AI Technical Summary

Problems solved by technology

[0006] The normal flowering period of 'Guangzhou' cherry blossoms is mid-March, while that of 'China Red' cherry blossoms is early and mid-February, and the natural flowering periods do not meet. When the two are cross-pollinated, only the early flowering 'China Red' cherry blossoms can be cross-pollinated. Low-temperature refrigeration is used to keep the pollen vigor, while if the pollen of the late-blooming 'Guangzhou' cherry is stored at low temperature, cross-pollination needs to be carried out in the second year.