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Hybrid wheat breeding method

A technology for hybrid wheat and wheat seeds, which is applied in the fields of botanical equipment and methods, seed and rhizome treatment, plant genetic improvement, etc. The effect of good plumpness and improved germination rate

Inactive Publication Date: 2017-08-18
ZHOUKOU NORMAL UNIV
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  • Claims
  • Application Information

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Problems solved by technology

[0005] A kind of hybrid wheat breeding method and application provided by the present invention, select suitable hybrid male parent, female parent and suitable hybridization method, solve the problem that the molecular breeding method is cumbersome to operate and cannot improve yield

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  • Hybrid wheat breeding method

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Embodiment 1

[0032] A hybrid wheat breeding method, specifically comprising the following steps:

[0033] The first step is to carry out indoor germination culture of different varieties of wheat seeds, and the temperature of germination culture is lowered from room temperature to -4°C within 30 hours, and the temperature of germination culture is controlled to decrease at a uniform speed. The wheat seeds that can still germinate under the condition of -4°C are Jimai 22, and then they are sown and self-crossed in the natural environment. The time of sowing the wheat seeds is October 10, and the F 1 substitute seeds;

[0034] In the second step, the high-yielding and stable-yielding wheat variety Bainong 3217 was selected as the female parent, and F 1 It is used as the male parent for hybridization. The wheat seeds are sown on October 10th, and the F with high yield and neat ears will be harvested next year 2 substitute seeds;

[0035] In the third step, the F 2 Indoor germination cultu...

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Abstract

The invention discloses a hybrid wheat breeding method. By a breeding way of combining low-temperature germination culture with hybridization, wheat seeds which still can be germinated at a temperature of 4 DEG C are screened out, and then are hybridized with a high-yield stable-yield female parent; successively, low-temperature germination culture and hybridization are continuously carried out; after secondary hybridization, offsprings with excellent characters are formed by selective breeding for inbreeding until a new variety of wheat with stable heritability and high combining ability is obtained; a new wheat breeding method is developed, indoor germination treatment on wheat seeds is carried out by using a gradually cooling stress method, the wheat seeds with strong freezing resistance are screened out, and the damage of low temperature to the wheat seeds is reduced; the finally obtained new wheat variety has good freezing resistance, and the problems that the operation of a molecular breeding method is trivial and the yield cannot be increased are solved.

Description

technical field [0001] The invention belongs to the technical field of wheat breeding, in particular to a hybrid wheat breeding method. Background technique [0002] Wheat has always been one of the traditional crop varieties in my country. The people's life is inseparable from flour, and the planting of crops is inseparable from wheat. However, the yield has always been an important factor restricting its development. my country's wheat planting is dominated by winter wheat, which overwinters at low temperature at the seedling stage. If the temperature is too low, it will easily damage the growth of wheat, affect subsequent growth, and reduce yield. Therefore, it is necessary to cultivate frost-resistant and high-yielding wheat varieties. [0003] The traditional wheat breeding process is natural hybridization or self-crossing until a new variety is bred, but this method takes a long time and has low efficiency, resulting in low breeding repetition rate and unstable breedin...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/04A01C1/00
CPCA01C1/00A01H1/02A01H1/04
Inventor 刘红占王俊生李菁菁王晓娟王雪芹
Owner ZHOUKOU NORMAL UNIV
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