A method for shortening the mango breeding cycle

Abstract

The invention discloses a method for shortening the mango breeding cycle, and belongs to the technical field of fruit tree breeding. The present invention selects Siji Mimang as rootstock tree, grafts hybrid parents to obtain hybrid seeds, then sows and cultivates seedlings of hybrid seeds in good time, uses the mature and strong terminal buds of the primary shoots extracted from the seedlings as scions, and grafts them in the soon-to-flower Siji At the top of the fruiting mother branch of the adult tree, the flower-forming hormones accumulated and formed by the adult fruit tree branches are used to induce the scion branches that are still in childhood, and the grafted branches can bloom and bear fruit 3-5 months after grafting. The invention utilizes blowflies to carry out pollination, and the flowering and fruiting rate is over 90%. The method of the present invention is simple and easy, and it only takes about 10 months from sowing seedlings to flowering and fruiting, and the hybrid progeny can be preliminarily evaluated and selected, and new varieties can be selected within 2-3 years, which greatly shortens the mango hybrid breeding period.

Description

technical field [0001] The invention belongs to the technical field of fruit tree breeding, in particular to a method for shortening the mango breeding cycle. Background technique [0002] Mango is a famous tropical fruit in the world. It has always enjoyed the reputation of "the king of tropical fruits" and is deeply loved by people. Due to its unique geographical conditions, Guangxi has become one of the main mango producing areas in China. Its Guiqimango, Tainongmango, Jinhuangmango and Zihuamango are famous all over the country and exported to all parts of the country. [0003] The quality of fruit sales is largely due to the quality of fruit varieties, and mango is no exception. Therefore, the cultivation and discovery of new mango varieties plays an important role in the development of mango planting. In order to obtain high returns, it is imperative to improve mango varieties. Because mango is highly heterozygous, sexual hybridization is mainly carried out between v...

AI Technical Summary

Problems solved by technology

It can be seen that the breeding method of growing mango hybrid seeds into mango fruit trees and then waiting for their fruit bearing to identify true and false hybrids undoubtedly consumes a lot of time, manpower, material and financial resources, and affects the process of mango hybrid breeding.

Grafting can maintain the genetic characteristics of the scion, and it is widely used in the cross-breeding of fruit trees. The traditional grafting method is to use a longer scion, but this has no obvious effect on shortening the fruit-bearing cycle of mango trees.

[0005] Therefore, in view of the long breeding cycle of the traditional grafting method and the low efficiency of mango artificial cross-pollination, low pollination and seed setting rate, high labor costs and long time period, it is necessary to explore a method to shorten the mango breeding cycle and speed up. The Process of Mango Hybrid Breeding