Method for selectively breeding wheat-rye 1BL/1RS translocation lines

A technology of translocation lines and rye, which is applied in the direction of botany equipment and methods, applications, plant gene improvement, etc., can solve the problems of low frequency of selection of translocation lines, etc., to solve the problem of lack of germplasm resources, compact plant type, root system developed effect

Inactive Publication Date: 2009-12-30
沈天民
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a breeding method for wheat-rye 1BL/1RS translocation line, which can effectively solve the problems of "high yield and high quality", "high yield and

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  • Method for selectively breeding wheat-rye 1BL/1RS translocation lines

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Experimental program
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Effect test

no. 1 example

[0024] Step 101. In the first year of breeding, select 20 spikes of Lan Xiaohei No. 1 as the female parent and 20 spikes of common wheat as the male parent, and perform hybridization to obtain the first generation of hybridization;

[0025] Step 102, in the second year of breeding, select 40 ears of hybrid first generation as the female parent, 40 ears of common wheat as the male parent, and carry out compound hybridization to obtain the second generation of hybridization;

[0026] Step 103. In the third year of breeding, 2000 grains of the second-generation hybrids were sparsely sown for a field test, wherein the row spacing of the sparse sowing was 30 cm, and the plant-to-plant spacing was 15 cm. Then select plants with excellent traits such as compact plant type, upright leaves, large spikes and many grains, strong disease resistance, and well-developed root system of triticale to obtain the third-generation lines;

[0027] Step 104. In the fourth year of breeding, use the ...

no. 2 example

[0032] Step 201. In the first year of breeding, select 20 spikes of Lan Xiaohei No. 1 as the female parent and 20 spikes of common wheat as the male parent, and perform hybridization to obtain the first generation of hybridization;

[0033] Step 202, in the second year of breeding, select 50 ears of hybrid first generation as the female parent, 50 ears of common wheat as the male parent, and perform compound hybridization to obtain the second generation of hybridization;

[0034] Step 203. In the third year of breeding, 2500 grains of the second-generation hybrids were sparsely sown for a field test, wherein the row spacing of sparse sowing was 30 cm, and the plant-to-plant spacing was 18 cm. Then isolate and select plants with excellent traits such as compact plant type, upright leaves, large ears and many grains, strong disease resistance, and well-developed root system of triticale, and obtain the third-generation lines;

[0035]Step 204, in the fourth year of breeding, use...

no. 3 example

[0040] Step 301, in the first year of breeding, select 20 spikes of Lan Xiaohei No. 1 as the female parent and 20 spikes of common wheat as the male parent, and perform hybridization to obtain the first generation of hybridization;

[0041] Step 302, in the second year of breeding, select 60 ears of hybrid first generation as the female parent and 60 ears of common wheat as the male parent, and perform compound crossing to obtain the second generation of hybridization;

[0042] Step 303. In the third year of breeding, 3000 grains of the second-generation hybrids were sparsely sown for field experiments, wherein the sparse row spacing was 30 cm, and the plant spacing was 20 cm. Then isolate and select plants with excellent traits such as compact plant type, upright leaves, large ears and many grains, strong disease resistance, and well-developed root system of triticale, and obtain the third-generation lines;

[0043] Step 304. In the fourth year of breeding, use the pedigree s...

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Abstract

The invention relates to a method for selectively breeding wheat-rye 1BL/1RS translocation lines. The method comprises: selecting Blue Black No.1 as a female parent and common wheat as a male parent, performing hybridization and obtaining a first hybrid generation; taking the first hybrid generation as the female parent and the common wheat as the male parent, performing composite hybridization and obtaining a second hybrid generation; sparsely sowing the second hybrid generation, selecting single plants with the excellent shape and properties of wheat and rye and obtaining third-generation strains; selecting the single plants with the excellent shape and properties of the Blue Black No.1 from the third-generation strains, identifying chromosomal structure, obtaining wheat-rye 1BL/1RS translocation-line plants, performing anther culture and obtaining early-generation strains; and identifying the yield, quality and resistance of the early-generation lines and accelerating the propagation of the strains with good yield, quality and resistance. The method has the advantages of recombining excellent genes 1B/1R on different sites to re-synthesize a novel 1BL/1RS translocation line, improving selection frequency and obtaining an excellent wheat variety with high yield, high quality, disease resistance, lodging resistance and wide adaptability.

Description

technical field [0001] The invention relates to a crop production method, in particular to a method for breeding wheat-rye 1BL / 1RS translocation line. Background technique [0002] Excellent wheat germplasm is the key to improving wheat yield and quality. The main reason why there has been no major breakthrough in wheat breeding in my country for a long time is the lack of germplasm resources. Therefore, to achieve a major breakthrough in wheat breeding, we must first realize the innovation of germplasm resources. An important method of cultivating wheat germplasm in the prior art is to use heterologous genes to improve wheat with close relatives of wheat, because in some close relatives of wheat there are many wheats that do not have it, but have economic value for improving wheat. Genes, such as high protein, disease resistance and other genes. For example, the "Niuzhute" type 1BL / 1RS translocation line is a wheat variety bred by this method. The 1BL / 1RS translocation li...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/04
Inventor 沈天民
Owner 沈天民
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