Breeding method capable of resisting wheat scab

A technology for wheat scab and scab, applied in the field of crop genetics and breeding, can solve the problems of large quantity, long breeding cycle and low efficiency, and achieve the effects of improving screening efficiency, increasing induction ratio and shortening breeding cycle.

Inactive Publication Date: 2016-12-07
QINGDAO AGRI UNIV
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Problems solved by technology

[0009] The purpose of the present invention is to provide a method that greatly accelerates the breeding speed of wheat scab resistance and significantly shortens the time of wheat scab resistance breeding for the defects of the existi

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  • Breeding method capable of resisting wheat scab
  • Breeding method capable of resisting wheat scab

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[0046] Example

[0047] Beginning in 2012, the scab resistance breeding method of the present invention was used to improve the scab resistance of the new strong gluten high-quality wheat variety Zhengmai 9023. The breeding steps are as follows.

[0048] (1) Screening of Sankang No. 6 and Zhengmai 9023 as high-resistance resources and main breeding parents of wheat head blight:

[0049] Zhengmai 9023 is a strong-gluten early-maturing high-quality wheat variety bred by Henan Academy of Agricultural Sciences. It is a weak spring, strong-gluten, high-quality, and early-maturing variety. The seedlings are semi-upright, with medium tillering power, rapid growth in spring, and the plant height is about 82 cm. , The plant type is compact and erect, the ear layer is neat, the yellow fall is good, the ear fusiform, long awn, white shell, hard white grain, the number of ears per mu is about 400,000, the number of ears is about 32, and the weight of 1000-grain is more than 42 grams. The level ...

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Abstract

The invention discloses a breeding method capable of resisting wheat scab. The breeding method comprises the steps of 1, selecting a wheat scab high-resistance resource and a breeding stem parent; 2, identifying wheat scab crude toxin selection pressure; 3, conducting hybridization on the wheat scab high-resistance resource and the breeding stem parent to obtain an F1 hybrid; 4, conducting anther culture on the F1 hybrid to obtain a haplobiont; 5, conducting subculture root strengthening on the haplobiont; 6, conducting root soaking doubling on the haplobiont; 7, conducting single plant harvesting on anther cultured seedlings to obtain an anther culture family, and then conducting agronomic character and wheat scab resistance selection to obtain a wheat scab resistance strain. By the adoption of the method, wheat scab resistance breeding is accelerated, wheat scab resistance breeding period is shortened remarkably to three years, and industrial value is high.

Description

technical field [0001] The invention relates to the field of crop genetics and breeding, in particular to a wheat scab resistance breeding method which greatly accelerates the breeding speed of wheat scab resistance and significantly shortens the breeding cycle for scab resistance. Background technique [0002] wheat scab ( Fusarium head blight, FHB), also known as red head miasma, rotten wheat head, wheat ear dry, red wheat head, is one of the major diseases of wheat worldwide, caused by Fusarium asiatica ( Fusarium asiaticum ) and Fusarium graminearum ( F. graminearium ), mainly occurs in warm and humid areas. The wheat region in the middle and lower reaches of the Yangtze River and the spring wheat region in the eastern northeast of China are the main epidemic areas of the disease. Fusarium graminearum is the main pathogen, accounting for 94.5% of the pathogens of wheat scab. After the 1960s, scab in the Guanzhong irrigation area of ​​Shaanxi became more and more se...

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Application Information

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IPC IPC(8): A01H1/02A01H4/00
CPCA01H1/02A01H4/001A01H4/008
Inventor 王纪芝尹纪岩宋立胜
Owner QINGDAO AGRI UNIV
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