Hybridization and selective breeding method for high-yield and powdery mildew resistant wheat

Abstract

The invention discloses a hybridization and selective breeding method for high-yield and powdery mildew resistant wheat, belongs to the field of wheat breeding, and aims to solve the problem of wheat yield reduction caused by the powdery mildew. The hybridization and selective breeding method is characterized in that a wheat variety Jimai 22 is selected as a female parent I, a wheat variety Aikang 98 is selected as a male parent I, and a filial generation F1 is obtained through hybridization between the wheat varieties Jimai 22 and Aikang 98; the filial generation F1 is selected as a female parent II, the wheat variety Aikang 98 is selected as a male parent II, and a filial generation F2 is obtained through hybridization between the filial generation F1 and the wheat variety Aikang 98; the high-yield and powdery mildew resistant wheat is obtained through selfing of the filial generation F2. The hybridization and selective breeding method has the benefits that the seeding time is late, the ripening time is early, wheat tillering and earing are realized in spring, the wheat earing rate is high, the obtained wheat is dwarf and has lots of wheat ears and grains, the thousand seed weight is high, and the disease resistance and the lodging resistance are high.

Description

technical field [0001] The invention relates to the field of wheat breeding, in particular to a method for hybrid breeding of wheat with high yield and resistance to powdery mildew. Background technique [0002] According to the National Bureau of Statistics, the average yield of wheat per mu in my country was 48.8 kg in 1952. By 2008, the average yield per mu had reached 317.5 kg, an increase of 6.5 times. Since the founding of New China 60 years ago, my country's wheat breeding has made remarkable achievements. Thousands of fine varieties have been selected and bred successively. There are 300-400 wheat varieties planted in production every year. There are more than 60 varieties with a planting area of ​​more than 10 million mu, which have made great contributions to the development of my country's wheat production. With the improvement of wheat production level, in the past ten years, the yield growth in my country and other wheat production circles has gradually slowed ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of wheat yield reduction caused by powdery mildew, the invention provides a method for hybrid breeding of wheat with high yield and resistance to powdery mildew