Year-round strawberry hybridizing and breeding method

Abstract

The invention relates to plant propagation, and in particular relates to a year-round strawberry hybridizing and breeding method which comprises the following step of: taking fragaria orientalis and rupee strawberry test tube seedlings as test materials. A regulating and controlling method for male sterile line of the rupee strawberry is as follows: selecting a plurality of runner tips of the rupee strawberry test tube seedling, controlling the temperature at 10-13 DEG C, controlling illuminating hour as 4-5h.d<-1>, and processing for 16-25 days, to promote the rupee strawberry to generate the male sterile line; and a method for preparing fragaria orientalis pollen mother liquid comprises the following steps of: setting volume of distilled water mixing liquid of 5.2g of fragaria orientalis pollen and boric acid, 150g of sucrose, 12.5mg of calcium chloride dihydrate and 36g of polyethylene glycol 4000 to 1L, and using the distilled water mixing liquid as mother liquid for further, wherein the pollen accounts for 8-12g; diluting mother liquid by distilled water; and keeping for 6 hours at 18-22 DEG C, uniformly shaking, spraying on the rupee strawberry male sterile line, and collecting seeds and planting after the rupee strawberry fruits are mature.

Description

[0001] [0002] technical field [0003] The invention relates to plant propagation, that is, a novel method for hybridization and breeding of four-season strawberries. Background technique [0004] In the prior art, my country's strawberry industry develops very fast, and constantly breeds and introduces new varieties. Although these strawberry varieties are different, the common shortcoming is a one-season variety, which is only in the middle of January (greenhouse cultivation) to early summer every year. Concentrated listing, from mid-July to the end of December is the vacancy period of the strawberry market. The economic benefits of strawberry production firstly depend on the variety. Four-season strawberries can bear fruit in multiple seasons, which can meet the market demand in the off-season. It can be seen that breeding and introducing four-season strawberry varieties is particularly important. [0005] At present, there are many reports on the breeding of strawberry ...

AI Technical Summary

Problems solved by technology

Ruby strawberry (Ruby strawberry) is a foreign four-season strawberry variety. The fruit is short wedge-shaped, dark orange-red, shiny, hard flesh, resistant to transportation, and high in yield, but poor in cold resistance, drought and disease resistance. Strawberries are susceptible to freezing damage in the alpine regions such as northern my country

In the process of strawberry breeding, there are shortcomings and difficulties such as complex emasculation of the female parent, poor operability of artificial pollination, and a small number of pure hybrid seeds.