A kind of Chinese plum hybrid breeding method

Abstract

The invention belongs to the technical field of hybridization breeding and in particular relates to a prunus salicina hybridization breeding method. The method provided by the invention is realized through the following steps: (1) during a revealing period, selecting female parent trees to be hybridized, wherein 2 to 3 plants of each variety are selected; erecting a shed frame capable of completely covering the female parent trees at the peripheries of tree crowns; (2) covering the shed frame with a shed cover and compacting the lower part with soil; (3) shearing flowering branches in a flowering period from male parent trees and inserting the flowering branches into a bottle filled with water; hanging the flowering branches to the upper parts of inner parts of the tree crowns of the female parent trees respectively; (4) putting one box of bees into the shed 3 days before flowering, and pollinating. The method provided by the invention is simple to operate and can be finished without a pollination tool, so that the method is suitable for large-batch hybridization; the pollination success rate is high and the hybridization success rate is high.

Description

technical field [0001] The invention belongs to the technical field of hybrid breeding, and in particular relates to a Chinese plum hybrid breeding method. Background technique [0002] Plum belongs to the small tree type, and most of the varieties are self-flowering and do not bear fruit. Hybrid breeding is an important way for the selection of high-quality and high-yield new varieties of plum trees, and it is the technical basis for the renewal of plum varieties. At present, the hybrid breeding of Prunus mainly includes links such as pollen preparation, flower emasculation, artificial pointing, bagging isolation, bag removal, etc. Conventional hybrid breeding has the following disadvantages: the one is that the steps are cumbersome, time-consuming and labor-intensive. Conventional hybrid breeding includes pollen preparation, Flower emasculation, artificial pointing, bagging and isolation, bag removal and other links, only anther stripping, flower emasculation and artificia...

AI Technical Summary

Problems solved by technology

At present, the crossbreeding of plum tree mainly includes links such as pollen preparation, flower emasculation, artificial pointing, bagging isolation, and bag removal. Conventional crossbreeding has the following disadvantages: the one is that the steps are cumbersome, time-consuming and labor-intensive. Conventional crossbreeding includes pollen preparation, Flower emasculation, artificial pointing, bagging and isolation, bag removal and other links, only anther stripping, flower emasculation and artificial pointing, will take a lot of time and cost a lot of money; In the pollination process, especially during artificial detasseling, because the plum flowers are too small (the diameter of the balloon-shaped flower buds is less than 5mm), it is easy to touch the stigma with hand-held flower buds and remove the stamens with tweezers, causing mechanical damage and affecting the fruit setting rate; the third is operability The period is short, and sufficient manpower is required. Under the current trend of labor force transfer to cities and aging, concentrated demand and short construction period have become an irreconcilable pair of contradictions

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