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Breeding method for hybrid rice two-line sterility line with albino ear lemmas

A hybrid rice and sterile line technology, applied in the agricultural field, can solve many problems, and achieve the effects of thick stems, improved purity, and short plant heights

Inactive Publication Date: 2016-10-26
RICE RES ISTITUTE ANHUI ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, there are not many reports on the mutants of panicle chlorosis in rice

Method used

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  • Breeding method for hybrid rice two-line sterility line with albino ear lemmas
  • Breeding method for hybrid rice two-line sterility line with albino ear lemmas
  • Breeding method for hybrid rice two-line sterility line with albino ear lemmas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] The present invention will be further explained below in conjunction with specific examples.

[0059] Breeding material:

[0060] 5308S: An indica two-line male sterile line bred by the Rice Research Institute of Anhui Academy of Agricultural Sciences (has been registered in the National Rice Data Center, and is a commercially available product, which can be purchased from the Rice Research Institute of Anhui Academy of Agricultural Sciences)

[0061] White panicle rice: a natural mutation of the restorer line RH003 (which has been registered in the National Rice Data Center and is a commercially available product, which can be purchased from the Rice Research Institute of Anhui Academy of Agricultural Sciences).

[0062] Yangdao No. 6: Jiangsu Lixiahe Agricultural Science Institute, (Yangdao No. 4 × 3021) F1 60 Breeding after Co-γ irradiation (has been registered in the National Rice Data Center, and is a commercially available product, which can be purchased from the...

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Abstract

The invention discloses a breeding method for a hybrid rice two-line sterility line with albino ear lemmas, and belongs to the field of breeding of hybrid rice. According to the breeding method disclosed by the invention, white ear rice is used as a male parent, two-line sterility line rice is used as a female parent, breeding is carried out in manners of hybridization, selfing, backcross and the like, and the hybrid rice two-line sterility line of which only ears are albinistic is obtained. In the research process of rice breeding, the inventor of the application obtains a novel mutant with albino ear lemmas by accident; moreover, the applicant finds that the mutant with the albino ear lemmas is prominently different from existing albino mutants found currently. According to the breeding method disclosed by the invention, the mutant is utilized to carry out breeding of the two-line sterility line; the albino trait of the sterility line obtained by adopting the breeding method to breed is only specifically expressed on lemmas; coloring is uniform; the agronomic trait of rice is not influenced; workload of removing impurities and roguing in the field seed production can be greatly reduced; the purity is efficiently identified.

Description

technical field [0001] The invention belongs to the technical field of agriculture, and in particular relates to a method for breeding two-line male sterile lines of hybrid rice with albino glume husks. Background technique [0002] Rice is an important food crop, and more than half of the world's population and more than 60% of my country's population use rice as a staple food. At present, the annual planting area of ​​hybrid rice accounts for more than 50% of the total rice planting area, which has made a huge contribution to ensuring my country's food security. The two-line hybrid rice develops rapidly due to the dual-use of one line, but in the seed production process of the two-line hybrid rice, if it encounters continuous rainy and low temperature weather, it is prone to fertility conversion, and the female parent of the sterile line is self-fertilized, resulting in two-line hybrid rice. The purity of hybrid rice seeds is reduced, which brings risks to safe seed produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02A01H1/04
CPCA01H1/02A01H1/04
Inventor 罗志祥从夕汉白岩松施伏芝阮新民杨联松罗玉祥
Owner RICE RES ISTITUTE ANHUI ACAD OF AGRI SCI
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