Dwarf winter wheat hybridization breeding method

A winter wheat and dwarf stalk technology, applied in the field of wheat breeding, can solve the problems of large fluctuation of wheat yield, and achieve the effects of strong cold resistance and lodging resistance, late sowing date and many ears.

Inactive Publication Date: 2015-10-21
LAOLING CITY GUANFENG WHEAT SEED BREEDING PROFESSIONAL COOP
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AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of large fluctuations in wheat yields affected by changes in the natural environment, the invention provides a method for hybrid breeding of dwarf winter wheat

Method used

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Embodiment 1

[0011] A method for hybrid breeding of dwarf winter wheat, in which Shannong 15 is crossed with Jimai 22 variety to obtain hybrid progeny F1, the dwarf wheat in the F1 generation is selected in the field, and the dwarf wheat in the F1 generation is selected Selfing, to obtain selfing progeny F2, the field selects the dwarf stalk variety wheat in F2 as the parent and carries out hybridization with Tainong 18, obtains the hybrid progeny F21, selects the wheat with the dwarf stalk variety in F21 with more grains in the field, and F21 was self-crossed with dwarf stalks and more grains, and the selfed progeny F22 was obtained. The dwarf stalk variety wheat in F22 was selected in the field, and the offspring of the dwarf stalk variety wheats selected in the field were selfed multiple times. Dwarf winter wheat is available.

[0012] The plant height separation ratio of hybrid F1 wheat plants is 1:2:1; there are no tillers before winter, but there are many tillers in spring, and the s...

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Abstract

The invention discloses a dwarf winter wheat hybridization breeding method and belongs to the field of wheat breeding. The dwarf winter wheat hybridization breeding method aims to solve the problem that the yield of wheat fluctuates greatly because of the influence of the natural environment change. The dwarf winter wheat hybridization breeding method comprises the steps that hybridization of Shannong No.15 and Jimai 22 is conducted, so that a filial generation F1 is obtained; dwarf wheat in the filial generation F1 is selected in a field, selfing of the dwarf wheat in the filial generation F1 is conducted, and then a filial generation F2 is obtained; dwarf wheat in the filial generation F2 is selected in a field to be used as a parent, the parent is hybridized with Tainong No.18, and then a filial generation F21 is obtained; dwarf wheat with more kernels per ear in the filial generation F21 is selected in a field, selfing of the dwarf wheat with more kernels per ear in the filial generation F21 is conducted, and then a filial generation F22 is obtained; dwarf wheat in the filial generation F22 is selected in a field, selfing of the finial generation of the dwarf wheat is conducted many times, and then dwarf winter wheat is obtained. The dwarf winter wheat hybridization breeding method has the advantages that the obtained dwarf winter wheat is high in earbearing tiller percentage, dwarf in stem, large in thousand seed weight and high in cold resistance and lodging resistance and bears a large number of ears and kernels.

Description

technical field [0001] The invention relates to the field of wheat breeding, in particular to a hybrid breeding method for dwarf winter wheat. 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. [0003] In the early days of the founding of the People's Republic of my country, the improvement of wheat varieties in our country started from the selection of local varieties, and a number of e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02A01H1/04
Inventor 刘延明
Owner LAOLING CITY GUANFENG WHEAT SEED BREEDING PROFESSIONAL COOP
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