Method for shortening mango breeding period

Abstract

The invention discloses a method for shortening the mango breeding period and belongs to the technical field of fruit tree breeding. According to the method, a four-season honey mango is selected as arootstock tree, a hybrid parent is grafted to obtain hybrid seeds, hybrid seed seedlings are sown and cultivated at the right time, old-mature strong buds of first shoots taken out from the seedlingsare used as scions, the scions are grafted at the top of mother branches of the four-season honey mango adult tree which are about to bloom, the flowering hormone accumulated and formed by the adultfruit branches are utilized to induce the scion shoots which are still in childhood, and the grafted shoots can blossom and bear fruit 3 to 5 months after grafting. Flowering and pollination are carried out through utilizing blow flies, and the flowering result rate is over 90%. The method is simple and easy to perform, 10 months are required from sowing and seedling to flowering, hybrid offspringcan be initially evaluated and selected, new varieties can be selected within 2 to 3 years, and the mango hybrid breeding period is greatly shortened.

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