Breeding method for wheat

Abstract

The invention discloses a breeding method for wheat, and belongs to the technical field of breeding. The method comprises the following steps: selecting wheat seeds with excellent short straw performance subjected to promotion planting as recipient parents and wheat seeds with large ears and large grain properties as donor parents; performing sowing on the recipient parent seeds and donor parent seeds in a staggered manner; performing backcross on F1-generation wheat hybrid seeds and the recipient parent seeds; sowing F2-generation wheat seeds, and performing gene selection on F2-generation wheat seedlings by utilizing a marker-assisted selection method; sowing F3-generation wheat seeds, injecting a DNA liquid into the F3-generation wheat seedlings by utilizing an ear stem injection method; determining the content of glutenin in F4-generation wheat hybrid seeds; and performing intercross on the F4-generation wheat seeds with a high glutenin content for 2-3 times, so as to obtain wheatseeds with characteristics of large ears, large grains and excellent straw. The method provided by the invention better realizes high-efficiency breeding of the wheat.

Description

technical field [0001] The invention belongs to the technical field of breeding, in particular to a wheat breeding method. Background technique [0002] Wheat is one of the main food crops in the world, with an annual global output of more than 7 billion tons, which provides the calorie intake of 20% of the world's population, and the average annual consumption of wheat per person is about 67kg. The level of glutenin content in wheat is very important to improve the baking quality of wheat bread. The traditional breeding method is a direct selection of traits and phenotypes, which has the disadvantages of long breeding cycle and low efficiency. Therefore, it is necessary to develop an efficient wheat breeding method. Contents of the invention [0003] The purpose of the present invention is to provide a wheat breeding method, which solves the problems of long breeding cycle and low efficiency in the existing wheat breeding through the organic combination of marker-assist...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a wheat breeding method, which solves the problems of long breeding cycle and low efficiency in existing wheat breeding by utilizing the organic combination of marker-assisted breeding and transgenic breeding