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Method for cultivating hybrid rice species by utilizing rice albino seedling traits

A technology for hybrid rice and albino seedlings, which is applied in the fields of botanical equipment and methods, applications, and plant genetic improvement, can solve the problems of not easy early detection and elimination, and the marked characters are not very conspicuous, and achieves the purity of hybrid rice seed production. problems, the effect of increasing purity, increasing yield

Inactive Publication Date: 2014-11-26
淮南市开元生物技术研究中心
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  • Abstract
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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 invention provides a method for cultivating hybrid rice species by utilizing rice albino seedling traits. The method comprises the following steps: selecting indica type rice species Jinlong containing pure albino seedling traits as a male parent and rice sterile line species Guangzhan 63S or Y58S as a female parent, and producing the hybrid rice species containing albino seedling genes. According to the novel hybrid rice species obtained by the method for cultivating hybrid rice species by utilizing rice albino seedling traits provided by the invention, the problem of production purity of the hybrid rice seeds in the sterile line breeding process is solved, the seed production purity of two series of hybrid rice is greatly improved, and the unit area yield of the rice is ensured and improved.

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 Applications(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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