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A method for cultivating hybrid rice seeds using the albino seedling traits of rice

A technology of albino seedlings and hybrid rice, applied in the direction of botany equipment and methods, application, plant gene improvement, etc., can solve the problems of difficult early detection and elimination, not very conspicuous marker traits, etc., and achieve the goal of solving the problem of hybrid rice seed production purity problems, improving purity, and ensuring yield

Inactive Publication Date: 2017-01-04
淮南市开元生物技术研究中心
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  • Application Information

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Problems solved by technology

[0003] Rice marker traits have been widely used in hybrid rice breeding and seed production. Rice marker traits are rich and colorful in rice, such as zebra leaves, mosaic leaves, dark stripes, purple leaves, red awns, fragrance and other traits. However, the above marker traits Not very eye-catching, not easy to detect and eliminate early in large rice planting groups

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0025] A method for cultivating hybrid rice seeds utilizing the albino seedling trait of rice, comprising the following steps:

[0026] (1) Selection of breeding materials

[0027] The indica rice variety Jinlong with homozygous albino seedling traits introduced from the Henong Institute of Zhejiang Agricultural University was selected; the rice CMS variety without albino seedling traits was selected: Guangzhan 63S;

[0028] (2) Breeding process of CMS varieties containing albinism gene

[0029] ① In 2010, the golden dragon described in step (1) was used as the male parent, and Guangzhan 63S was used as the female parent. The parental parents in Huainan were planted at a ratio of 4:1, and 40 golden dragons and 10 Guangzhan 63S were planted. The golden dragons were divided into 4 phases Sowing, with an interval of 7 days, grouping and crossing, harvesting the F0 generation; sowing the F0 generation in Hainan on November 20 of the same year, transplanting one month later, and h...

Embodiment 2

[0045] A method for cultivating hybrid rice seeds utilizing the albino seedling trait of rice, comprising the following steps:

[0046] (1) Selection of breeding materials

[0047] The indica rice variety Jinlong with the homozygous albino seedling trait introduced from Zhejiang Agricultural University was selected; the rice CMS variety without the albino seedling trait was selected: Y58S;

[0048] (2) Breeding process of CMS varieties containing albinism gene

[0049] ① In 2010, with Jinlong mentioned in step (1) as the male parent and Y58S as the female parent, 40 Jinlong and 10 Y58S were planted in the Huainan parent parent at a ratio of 4:1. Day, hybridization in groups, harvesting the F0 generation; sowing the F0 generation in Hainan on November 20 of the same year, transplanting one month later, and harvesting the F1 generation before April 15;

[0050] ②The F1 generation was sown in Huainan on May 15, 2011, and a large population of 3,000 F1 generation plants was tran...

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Abstract

The present invention provides a method for cultivating hybrid rice species by utilizing the trait of albino seedlings of rice. The indica rice variety Jinlong containing the trait of homozygous albino seedlings is selected as the male parent and the rice CMS variety Guangzhan 63S or Y58S without the trait of albino seedlings is selected as the male parent. The female parent produces hybrid rice varieties containing the albino gene. The new hybrid rice variety obtained by the method for cultivating hybrid rice varieties using the albino seedling traits of rice provided by the present invention solves the problems in the breeding process of sterile lines and the production purity of hybrid rice seeds, greatly improves the purity of two-line hybrid rice seed production, and ensures and increase rice yield per unit area.

Description

technical field [0001] The invention relates to a plant breeding method, in particular to a method for cultivating hybrid rice seeds using the albino seedling trait of rice. Background technique [0002] Hybrid rice varieties are mainly divided into three-line hybrid rice and two-line hybrid rice. Since Shi Mingsong reported the discovery of light-temperature-sensitive male sterile rice in 1981, Chinese scientists have conducted a lot of research on the use of heterosis by the two-line method of rice, especially with the funding of the major special projects of the National 863 Program, they have achieved world-renowned achievements. It is a major achievement. At present, the two-line hybrid rice has occupied a very important position in the utilization of rice heterosis in my country, and the two-line hybrid rice has developed rapidly in terms of variety selection and promotion area. Two-line hybrid rice seed production uses photothermosensitive sterile lines and restorer l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/02A01H1/04
Inventor 王霓辉刘武
Owner 淮南市开元生物技术研究中心
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