Wheat breeding method

A wheat and seed testing technology, applied in the directions of botanical equipment and methods, application, plant genetic improvement, etc., can solve the problems of importing high-quality varieties, neglecting quality in yield, and low efficiency, and achieve good baking quality and disease resistance. Strong, nutritious effects

Inactive Publication Date: 2011-08-03
SOUTHWEAT UNIV OF SCI & TECH
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Problems solved by technology

[0004] Due to historical reasons, my country's breeding experts only paid attention to the output and ignored the quality for a long time, resulting in a situation of high output, poor quality, low benefit, and high-quality varieties relying on imports

Method used

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Embodiment Construction

[0026] In order to make the technical means, creative features, goals and effects of the present invention easy to understand, the present invention will be further elaborated below in conjunction with the examples.

[0027] Such as figure 1 As shown, the breeding program of Xicomai 6 can be roughly divided into four main stages from the perspective of the whole pedigree. The first stage, before 1981, excellent intermediate material T7915 K-3-69 The multi-parental sequence stepwise hybridization was adopted to gather the excellent germplasm of many parents. In the second stage, in 1981, the excellent intermediate material was used to cross with the newest fine variety Mianyang 15, which was to be popularized at that time, and Mianyang 88-304 (later named Mianyang 25) was successfully bred in 1988. In the third stage, in 1990, the new variety Mianyang 25 was used as the female parent and Mianyang 86-5 was used as the male parent. In 1996, an excellent intermediate parent Mian...

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Abstract

The technical problem to be solved by the invention is to provide a high-yield, high-quality, disease-resistance big-ear white-skin large-grain wheat breeding method to solve the problems of the prior art. The method comprises the following steps: (1) performing multi-parent sequential step cross-breeding and selecting white-skin seeds of varieties with excellent comprehensive properties and varieties with special properties according to records; (2) crossing the stored white-skin seeds with excellent comprehensive properties, which serve as parent materials and usually serve as female parents, and materials, of which the target properties are required to be improved and which serve as male parents to breed intermediate materials or varieties which adapt to local ecological conditions and have more excellent properties and less defects, namely parent materials; and (3) performing one or more circles of cross breeding by repeatedly using the intermediate materials as female parents and the materials having properties to be improved in an breeding objective as male parents till the new white-skin large-grain wheat varieties which are in accordance with the breeding objective are bred.

Description

technical field [0001] The invention relates to wheat breeding, in particular to a method for breeding white-skinned large-grain wheat. Background technique [0002] my country has more people and less land, and the area of ​​arable land is decreasing day by day. Wheat is one of the important food crops. To ensure national food security, it is of great significance to breed wheat varieties with excellent nutritional quality and agronomic traits. With the accelerated development of urbanization and the continuous improvement of people's living standards, the demand for special wheat to meet various needs is becoming more and more urgent. People have higher and higher requirements for the yield and quality of varieties. Farmers require large grains, white skins, beautiful appearance, and high selling prices; processing and marketing departments require high flour extraction rate and protein, and good gluten quality; consumers require high nutritional quality. , Good palatabil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
Inventor 李邦发
Owner SOUTHWEAT UNIV OF SCI & TECH
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