Breeding method of excellent novel germplasm of soybeans

A new germplasm and soybean technology, applied in the agricultural field, can solve the problems of reducing the probability of excellent gene aggregation and selection, short flowering period, low efficiency, etc., and achieve the advantages of shortening the effective selection period, high outcrossing efficiency, and improving selection criteria. Effect

Pending Publication Date: 2020-05-15
陕西省杂交油菜研究中心
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Problems solved by technology

As soybean is a cleistogamous pollinated crop, its flower organs are small, the pollen survival period is short, and the flowering period is very short, resulting in low efficiency of artificial emasculation for hy

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  • Breeding method of excellent novel germplasm of soybeans
  • Breeding method of excellent novel germplasm of soybeans
  • Breeding method of excellent novel germplasm of soybeans

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific implementations described here are only used to explain the present invention, not to limit the present invention. On the contrary, the invention covers any alternatives, modifications, equivalent methods and schemes within the spirit and scope of the invention as defined by the claims. Further, in order to make the public have a better understanding of the present invention, some specific details are described in detail in the detailed description of the present invention below. The present invention can be fully understood by those skilled in the art without the description of these detailed parts.

[0024] The present invention will be further described below in conjunction with the accompanying drawings ...

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Abstract

The invention provides a breeding method of an excellent novel germplasm of soybeans. In the method, recurrent selection is carried out by using a male genic sterile gene, the defects of artificial castration hybridization are completely overcome, and the randomness of cross parent selection and crossbreeding efficiency are greatly improved. The recurrent selection technology of the male genic sterile gene is introduced into group hybridization, intercross, backcross and composite cross plans of soybean germplasm, through hybridized combination prepared in a summer net chamber, off-season multiplication for generation addition in winter and secondary generation addition in an artificial phytotron in spring, three generations are realized each year, marker-assisted selection is used, largebatches and multiple types of novel germplasm materials of soybeans can be rapidly obtained by non-destructive quality detection, indoor resistance identification and multi-point adaptability identification, precious and excellent parents are provided for breeding of new varieties, and soybean breeding has infinite potentials.

Description

technical field [0001] The invention belongs to the technical field of agriculture, and relates to a method for breeding excellent new germplasm of soybean, in particular to a method for breeding new soybean germplasm with high oil content, high protein and disease resistance. Background technique [0002] The parental sources of soybean breeding varieties are narrow, and there is a lack of genetic diversity among key varieties, making it difficult to break through in yield and improve stress resistance. Based on the recurrent selection population cultivated by male sterility crossing, this study gathers as many favorable gene pool resources as possible into a gene bank, and continuously excavates various favorable genes in these resources to serve different Breeding needs of ecological regions. my country is the country of origin of soybean and has very rich soybean germplasm resources. These resources contain a variety of beneficial genes that need to be developed and uti...

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Application Information

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IPC IPC(8): A01H1/04A01H1/02
CPCA01H1/04A01H1/02
Inventor 张璞肖金平苟升学刘颢萌
Owner 陕西省杂交油菜研究中心
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