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Method for cultivating wheat with high resistance to yellow mosaic disease

A cultivation method and technology of planting method, which are applied to the cultivation method and planting field of wheat with high resistance to yellow mosaic disease, can solve the problems of removal and inability to pass, and achieve the effects of high yield, excellent quality and strong practical value.

Inactive Publication Date: 2014-12-17
ZHENJIANG AGRI SCI INST JIANGSU HILLY AREAS
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AI Technical Summary

Problems solved by technology

Although delayed sowing and crop rotation can reduce the occurrence of the disease to a certain extent, the dormant spores of Polymyxa graminearum that persistently carry and spread the virus are extremely resistant to stress and can survive in the soil for at least 20-25 years. Cannot be eliminated by cultural practices or fungicides

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for cultivating wheat with high resistance to yellow mosaic disease, comprising the following steps:

[0029] 1) Select Sumai 6 with high resistance to yellow mosaic disease as the female parent, and the high-quality intermediate line Yang 97G59 as the male parent, and sexually cross the two to obtain the hybrid F 1 ;Sumai 6 uses early-maturing, short-stalked, lodging-resistant, and high-quality white-skinned wheat seeds that are easy to grow and germinate; the intermediate line Yang 97G59 uses seeds with strong tillering ability and good comprehensive resistance;

[0030] 2) to F 1 Repeated selfing, using directional selection, selfing mixed harvesting method, focusing on expanding the good gene combination of hybrid offspring, and paying attention to the improvement of grain quality and comprehensive traits, obtained F 2 ;

[0031] 3) to F 2 Repeat selfing eight times, adopt pedigree selection method, and continuously select excellent individual plants unt...

experiment example 1

[0038] Experimental Example 1: Planted by Plant Protection Institute of Jiangsu Academy of Agricultural Sciences

[0039] High resistance to yellow mosaic disease, scab, and moderate resistance to sheath blight and powdery mildew in the 2010-2011 regional test in Huainan, Jiangsu; resistance to yellow mosaic, scab, Moderately susceptible to sheath blight and moderately resistant to powdery mildew. The yield level is 500-550kg / mu, and the yield is three factors: about 310,000 effective panicles per mu, 38-40 grains per panicle, and 1,000-grain weight above 45g.

[0040]

experiment example 2

[0041] Experimental Example 2: 2010-2011 Regional Experiment in Jiangsu Huainan Wheat Region

[0042] 8 of the 10 test points increased production, ranking 5th among the 12 participating species, with a yield increase of 3.27%; in the 2011-2012 Jiangsu Huainan wheat area regional test, all 9 test points increased production, ranking 13 among the test species No. 2 species, with a yield increase of 7.33%.

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PUM

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Abstract

The invention discloses a method for cultivating wheat with high resistance to yellow mosaic disease. The invention also discloses a new wheat line 12-628 obtained by the method for wheat with high resistance to yellow mosaic disease. The invention also discloses the cultivation method of the new wheat line 12-628. The invention selects parents with excellent characters, Su wheat No. 6 and a middle line Yang 97G59; gene recombination and cumulative effect are used for creating a transgressive offspring, so as to obtain get the new wheat line 12-628 with strong medium tillering ability, lodging resistance and high resistance to wheat yellow mosaic disease. The new wheat line cultivated by the invention has high resistance to yellow mosaic disease, scab, banded sclerotial blight and powdery mildew, at the same time has advantages of high yield, good quality and obvious agronomic characters; and the wheat line provided by the invention solves a big problem in Jiangsu and Huainan wheat region, and has a strong practical value.

Description

technical field [0001] The invention belongs to the technical field of high-yield planting of crops, and in particular relates to a breeding method and planting method of wheat with high resistance to yellow mosaic disease. Background technique [0002] Wheat yellow mosaic disease is a soil-borne viral disease caused by wheat yellow mosaic virus, and the vector of transmission is Polymyxa graminearum. Once the soil is infected with wheat yellow mosaic virus, it will be long-term pathogenic and difficult to eliminate, and it will increase year by year with the successive planting of susceptible varieties. The harm of wheat yellow mosaic disease mainly affects the growth and development of wheat, resulting in a decline in yield and quality. It is increasingly becoming one of the most serious diseases that endanger wheat production in my country. Fields with wheat yellow mosaic disease can generally reduce production by 20%-30%, and can reach 70% in severe cases. More serious ...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/04
Inventor 温明星陈爱大
Owner ZHENJIANG AGRI SCI INST JIANGSU HILLY AREAS
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