A kind of rice breeding method

A technology for dwarfing rice and black stripes of rice is applied in the field of crop genetics and breeding, which can solve problems such as weak resistance, and achieve the effects of saving cost, saving labor and improving breeding efficiency.

CN105660382BInactive Publication Date: 2017-10-03SHANDONG RICE RES INST
7 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2017-10-03
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
Patent Text Reader

Abstract

The invention provides a rice breeding method. Synchronous induced identification of rice blast and rice black-streaked dwarf virus is realized. The rice breeding method comprises the following steps: inducing the rice blast by using MingShui scented rice; attracting laodelphax striatellus to suck and propagate the rice black-streaked dwarf virus by using fragrant blood glutinous rice 2315; selecting and breeding group seeds and performing mixed-breeding and mixed-planting with the MingShui scented rice; after bacteria inoculation and virus inoculation are induced, performing field selection and indoor identification, and finally, selecting a single spike which meets a breeding target and performing generation-adding to form a high-quality high-yield rice blast-resistant and rice black-streaked dwarf virus-resistant new variety. According to the method, the breeding of the high-quality high-yield rice blast-resistant and rice black-streaked dwarf virus-resistant new variety can be accelerated, the disadvantages that the rice appearance quality of a variety which is popularized in current production is relatively poor, and the resistance to the rice blast and the resistance to the rice black-streaked dwarf virus are weak are overcome, so that the quality and the commodity characteristic of rice are improved, the using amount of a pesticide can also be reduced, environment pollution is reduced, the economic benefit is improved, and meanwhile, the requirements on green sustainable development industries which are espoused at present are met.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a rice breeding method, in particular to a method for breeding new rice strains (species) with high quality, high yield and resistance to rice blast and black-streaked dwarf disease, belonging to the technical field of crop genetics and breeding. Background technique

[0002] In recent years, rice blast and rice black-streaked dwarf disease have been increasing year by year in the Huanghuai japonica rice region, causing extremely serious impact on yield. Rice blast is one of the most destructive rice diseases caused by the fungus Magnaporthegrisea (Hebert) Barr, especially the mid-to-late panicle neck blast (commonly known as "choke neck blast") can cause large-scale production reduction, or even crop failure, as Ming Shuixiangdao, Xinfeng No. 2, Yujing No. 6, etc. are all heavily susceptible varieties. Rice black streaked dwarf virus (RBSDV) is a vicious rice virus disease that is persistently transmitted non-ovially by the b...

Examples

Embodiment Construction

[0023] The technical scheme of the present invention and the technical effects produced thereof are further elaborated below in conjunction with specific test methods. The following descriptions are only for explaining the present invention, but do not limit the present invention in any way. Any transformation done based on the teaching of the present invention Or replacement, all belong to the protection scope of the present invention.

[0024] The methods used in the present invention are conventional methods in the art unless otherwise specified.

[0025] The test materials and reagents used in the following examples can be obtained from commercial sources unless otherwise specified. All crop varieties (strains) used are conventionally used varieties (strains) in the field of breeding, have passed national certification or technical appraisal, and can be obtained from the variety resource bank or purchased in the market.

[0026] A kind of rice breeding method, its step pr...