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Cultivation method of photo-thermo-sensitive two-line nucleus sterile line indica hybrid rice

A breeding method and technology of hybrid rice, applied in the field of breeding of light-temperature-sensitive two-line GMS line indica hybrid rice

Inactive Publication Date: 2017-07-18
ANHUI JINPEIYIN TECH
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Problems solved by technology

[0003] The object of the present invention is to provide a kind of breeding method for the light-temperature-sensitive two-line GMS line indica hybrid rice, and through the application of the breeding method, the existing problems are solved

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Embodiment Construction

[0032] The technical solutions in the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0033] The invention is a method for cultivating light-temperature-sensitive two-line GMS line indica hybrid rice, and the cultivating method comprises the following specific steps:

[0034] Step 1: In the first summer season, select Guangzhan 63S as the female parent, and Guanghui 5088 as the male parent with excellent plant and leaf shape, good luxuriance, good rice quality, and strong disease resistance, and carry out in Hefei, Anhui Small-scale combined seed production to obtain F1 seeds;

[00...

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Abstract

The invention discloses a method for cultivating light-temperature-sensitive two-line GMS indica hybrid rice. The seeds prepared by using this method are used as the female parent of hybrid rice for the utilization of rice heterosis, which can be used without Restoring the constraints of the relationship, overcoming the shortcomings of the unfreedom of the three-line method, is conducive to greatly improving the utilization rate of rice resources, ensuring the safety of hybrid seed production, and overcoming the shortcomings of the unstable fertility of the two-line method CMS; The rice seeds obtained by this method are used as the female parent, and the hybrid rice obtained by crossing the conventional rice as the male parent is normal and fertile, thereby expanding the application range of rice resources, easy to cultivate high-yield and high-quality hybrid rice and promoting the safety and security of hybrid rice. Ongoing development.

Description

technical field [0001] The invention belongs to the technical field of seed cultivation, and in particular relates to a method for cultivating light-temperature-sensitive two-line GMS indica hybrid rice. Background technique [0002] In 1970, Yuan Longping, Li Bihu and others discovered a male sterile plant in wild rice in Hainan. In 1973, the three-line matching of sterile line, maintainer line and restorer line was realized. Hybrid rice was gradually popularized on a large scale, contributing to my country's food security. made a great contribution. However, due to the constraints of the restoration relationship, it is difficult to breed new male sterile lines and male parents, and the utilization rate of rice resources is lower than 10%. With the successful research of photothermo-sensitive genic male sterile rice, the breeding speed of sterile lines and strong dominant combinations has been greatly accelerated. Super hybrid early rice, super hybrid middle rice and super ...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/04
CPCA01H1/02A01H1/04
Inventor 王亚男范思静樊友鑫王宝军
Owner ANHUI JINPEIYIN TECH
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