A kind of wheat head blight resistance breeding method

A technology for wheat scab and scab, which is applied in the field of crop genetics and breeding, can solve the problems of long breeding cycle, low efficiency, and shorten the breeding cycle for scab resistance, so as to speed up the breeding speed, increase the induction ratio, shorten the The effect of the breeding cycle

Inactive Publication Date: 2018-03-06
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 existing wheat scab disease-resistant breeding, such as the long breeding cycle, the need for a large amount of manual field screening, and low efficiency. Breeding method for wheat head blight resistance in mildew resistance breeding cycle

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  • A kind of wheat head blight resistance breeding method
  • A kind of wheat head blight resistance breeding method

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Embodiment

[0047] Since 2012, the scab resistance breeding method of the present invention has been used to improve the scab resistance of Zhengmai 9023, a new wheat variety with strong gluten and high quality. The breeding steps are as follows.

[0048] (1) Screen Sankang No. 6 and Zhengmai 9023 respectively as high-resistance wheat scab-resistant resources and main parents for breeding:

[0049]Zhengmai 9023 is an early-maturing high-quality wheat variety with strong gluten and high-quality selected by Henan Academy of Agricultural Sciences. It is a weak-spring, strong-gluten, high-quality, early-maturing variety. The seedlings are semi-erect, with medium tillering ability, rapid growth in spring, and a plant height of about 82 cm. , the plant type is compact and upright, the ear layer is neat, the yellowing is good, the ear is spindle-shaped, long awn, white shell, hard white grain, the number of ears per mu is about 400,000, the number of grains per ear is about 32, and the weight of t...

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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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Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/02A01H4/00
CPCA01H1/02A01H4/001A01H4/008
Inventor 李夕梅张玉梅林琪
Owner QINGDAO AGRI UNIV
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