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Method for breeding broad-spectrum rice restorer line hybrid rice combination

A restorer, broad-spectrum technology, applied in the fields of botanical equipment and methods, applications, and plant genetic improvement, can solve problems such as lack of recovery ability, and achieve the effect of compact plant type and high seed production yield.

Active Publication Date: 2015-05-06
YANCHENG MINGTIAN SEED SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is a lack of broad-spectrum rice restorer lines that have broad-spectrum recovery capabilities for both three-line sterile lines and two-line sterile lines among the above excellent restorer lines

Method used

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  • Method for breeding broad-spectrum rice restorer line hybrid rice combination
  • Method for breeding broad-spectrum rice restorer line hybrid rice combination
  • Method for breeding broad-spectrum rice restorer line hybrid rice combination

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Embodiment Construction

[0035] The following examples are used to further illustrate the present invention, but are not intended to limit the scope of the present invention.

[0036] The specific breeding process of the present invention utilizes a broad-spectrum rice restorer line and its series of hybrid rice combinations.

[0037] (1) Select the strong and excellent restorer line "Zhenhui 084" with compact plant type, resistance to bacterial blight, and good quality as the female parent, and select the self-fertile strong and excellent restorer line "Yan Hui 411" (Multi-line No. 1 / / 80085 / Ming Hui 75) F 8 As the male parent, carry out sexual interbreeding to obtain F 0 seed;

[0038] (2) Selected by selfing, from F 3 Indica three-line or two-line CMS lines were tested from generation to generation, and the degree of recovery, heterosis, bacterial blight and rice blast were identified generation by generation, and the appearance quality (main index chalkiness rate≤30%, chalkiness 5%) screening, ...

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Abstract

The invention relates to a method for breeding a broad-spectrum rice restorer line hybrid rice combination, and belongs to the technical field of plant breeding. The method comprises the following steps: breeding strong superiority restorer line 'Yanhui 1393' with compact plant type, bacterial blight resistance-moderate resistance, rice blast resistance-moderate resistance, excellent quality and broad spectrum; carrying out measurement matching on the Yanhui 1393 with an indica three-line sterile line (Tianfeng A, Quan 9311A, Quanxiang 79A, Zhenxian 1A and the like) and an indica two-line sterile line (salt 220S, Y58S, depth 08S, Quan 03S and the like); successively breeding a new strong superiority series three-line hybrid indica combination (Tianfeng superior 1393, Quan superior 1393, Quanxiang superior 1393 and Zhenxian superior) with moderate mature stage, compact plant type, bacterial blight resistance-moderate resistance, rice blast resistance-moderate resistance, high and stable yield and excellent rice quality and a new strong superiority series two-line hybrid indica combination (salt two-superior 1393, Y two-superior 1393, depth two-superior 1393 and new two-superior 1393).

Description

technical field [0001] The invention relates to a breeding method for a broad-spectrum rice restorer line hybrid rice combination, which belongs to the technical field of plant breeding, and more specifically relates to a breeding method for a broad-spectrum rice restorer line and a series of hybrid rice combinations thereof. Background technique [0002] The breeding and large-scale promotion and application of hybrid rice in my country has made a remarkable contribution to the food production of my country and the world, creating a miracle of feeding 23% of the world's population with 7% of the world's arable land. According to incomplete statistics, as of 2013, the accumulative total of hybrid rice planted in my country has exceeded 6 billion mu, increasing grain production by more than 600 million tons. In the 1970s, my country took the lead in realizing the matching of three lines of hybrid rice. The promotion of the three-line hybrid rice brought the rice yield to a ne...

Claims

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Application Information

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IPC IPC(8): A01H1/04
Inventor 孙明法朱国永姚立生王爱民严国红唐红生何冲霄刘凯张桂云施伟
Owner YANCHENG MINGTIAN SEED SCI & TECH
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