Method for integrated culture of hybrid rice aromatic restoring line

A technology of hybrid rice and restorer lines, applied in botany equipment and methods, biochemical equipment and methods, angiosperms/flowering plants, etc., can solve problems such as outstanding single traits, incapable of large-scale application, insufficient aggregation of comprehensive good traits, etc. , to achieve the effect of strong operability

Inactive Publication Date: 2017-07-21
内江杂交水稻科技开发中心 +2
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  • Abstract
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for comprehensively cultivating aroma-type restorer lines of hybrid rice, aiming at solving the problems of long breeding years, outstanding single traits, and insufficient aggregation of comprehensive good traits in the existing methods of breeding high-quality aroma-type disease-resistant restorer lines , the problem that it cannot be applied in a large area in production

Method used

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  • Method for integrated culture of hybrid rice aromatic restoring line
  • Method for integrated culture of hybrid rice aromatic restoring line
  • Method for integrated culture of hybrid rice aromatic restoring line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] High-quality, high-combining ability, disease-resistant fragrance recovery system Neixianghui 2156

[0055] In the winter of 1999, the high-quality disease-resistant aroma restorer line Neihui 99 Dong 47 containing Yunnan Xiangnuo relative Dianrui 306 (later named Neixianghui 1, relative: Tiemei 1 / Zhaiyeqing / / IR28 / / / IR24 / IR214 / / / / Dianrui 306 / / / / / Minghui 63) was used as the female parent, and the self-fertile high-quality disease-resistant restorer line Neihui 99-14 was used as the male parent. During the pedigree selection process, at the same time Strengthen the selection of rice strains for quality, flavor, disease resistance and stress resistance, resilience and combining ability, increase the selection pressure of directional stress in multiple environments, control the direction of variation, and aggregate good genes. Selection of standard test cross CMS line and continuous test cross of Ⅱ-32A and Zhenshan 97A, in 2003 F 6 A stable strain was obtained, and the pl...

Embodiment 2

[0059] Example 2 Neihui 3399, a high-quality, high-combining ability, disease-resistant fragrance restorer

[0060] In the winter of 2002, the self-fertilized high-quality disease-resistant fragrance intermediate recovery material R789 (including Neixianghui No. 2 bloodline: Tiemei No. 1 / Zhaiyeqing / / IR28 / / / IR24 / IR214 / / was used in the Lingshui South Breeding Base of Hainan in the winter of 2002) / / Dianrui 306 / / / / / Minghui 63) was crossed with the restorer line R456. In 2003, F1 was planted in Neijiang, and then recrossed with the restorer line Guanghui 128 with excellent comprehensive agronomic properties. It was propagated in Hainan Ling in winter in 2003. The water base was planted to recross the F1 generation. Through south-north breeding, the identification of rice blast resistance, heterosis screening and identification, rice quality identification and aroma identification are combined generation by generation. During the breeding process, selected excellent single plants...

Embodiment 3

[0064] Example 3 Neixianghui 3306, a high-quality, high-combining ability, disease-resistant fragrance recovery system

[0065] In the main season of 2004, Neijiang used the intermediate material R2565 / R5125 (Neixianghui 2 / / 99 Dong47 / Neihui 99-14 / / / R456) and the highly resistant rice blast restorer line Neihui 99-14 hybridization, in the winter of 2004, F1 was planted in Lingshui South Breeding Base in Hainan, and in 2005, the F2 generation was planted in the main season. Through South Breeding and North Breeding, the identification of rice blast resistance, heterosis identification, rice quality identification and Fragrance identification. In the process of breeding, select excellent single plants to test cross with Ⅱ-32A, Gang 46A, Neixiang 5A, Neixiang 7A and other CMS lines. In the winter of 2006, the 3306 line was strong in resilience, high in combining ability and high in rice quality. , good resistance, fragrance, and excellent agronomic traits were selected. In 2011,...

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Abstract

The invention discloses a method for integrated culture of a hybrid rice aromatic restoring line. According to the method for integrated culture of the hybrid rice aromatic restoring line, geographic distant breeding parent materials are used for hybridization, and a 'four early synchronization' multi-environment directional stress breeding technology and method are comprehensively applied to culturing a restoring line which has sweet smell, high combining ability, strong restoring force, high rice quality, good comprehensive agronomic characters and strong rice blast resistance; and synchronous improvements onquality, yield and resistance are achieved by adopting hybridization between 'high-quality and high-quality' and 'high-quality and disease-resistant' breeding parent materials, thereby breeding a hybrid rice aromatic restoring line with outstanding target characters and good comprehensive characters. According to the method provided by the invention, the 'four early synchronization'multi-environment directional stress breeding technology and method are comprehensively applied, a completely aromatic hybrid rice combination can be prepared and can pass through an approval, main quality indexes of a bred completely aromatic variety meet a Chinese standard level 3 or above, and the bred completely aromatic variety is aromatic and has relatively strong rice blast resistance.

Description

technical field [0001] The invention belongs to the technical field of rice breeding, in particular to a method for comprehensively cultivating aroma-type restorer lines of hybrid rice. Background technique [0002] Food security is a major issue worldwide. The development of my country's rice production must take the road of organic combination of high quality, high yield and disease resistance, and coordinated development. In the 1990s, my country's hybrid rice production faced two major challenges: stagnant yield and general deviation in rice quality. The main reason was that the genetic basis of breeding materials was narrow and there was no major breakthrough in combining ability. The essence of hybrid rice is to use the heterosis between the sterile line and the restorer line. The key to the success of breeding lies in the innovation and improvement of materials. For example, the breeding of Minghui 63, the most famous restorer line in my country, and the application...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02A01H1/04A01H5/00
CPCA01H1/02A01H1/04C12N15/8261C12N15/8273C12N15/8279Y02A40/10
Inventor 陈勇肖培村袁驰赵鹏梁永霞郑灵曾莉黄湘孙泽武谢从简
Owner 内江杂交水稻科技开发中心
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