Purposeful breeding method for restoring-line of three way cross type hybrid rice

A technology of hybrid rice and restorer lines, applied in botany equipment and methods, rice cultivation, plant gene improvement, etc., can solve the problems of parental utilization of difficult hybrid rice, improve breeding level and application value, enhance breeding potential, expand The effect of resource utilization range

Active Publication Date: 2009-03-18
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large number of excellent conventional rice varieties are still difficult to use as parents of hybrid rice

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1: Shanyou 63 was used as the female parent, and Ganyouwan 9 was used as the recurrent male parent. In the B4F3 generation, a restorer line Huiganyouwan 9 with agronomic traits similar to Ganyouwan 9 and carrying a wild-type restorer gene was bred. Zhenshan 97A and Huiganyouwan 9 were used to form Shanyouhuiganyouwan 9.

Embodiment 2

[0033] Example 2: Shanyou 63 was used as the female parent, and Feng Liuzhan was used as the reincarnated male parent. In the B3F3 generation, a restorer line Huifengliuzhan with agronomic traits similar to Fengliuzhan and a wild-type restorer gene was bred. Use Zhenshan 97A and Huifeng Liuzhan to form Shanyou Huifeng Liuzhan.

Embodiment 3

[0034] Example 3: Shanyou 64 was used as the female parent, and Jiafuzhan was used as the reincarnated male parent. In the B3F3 generation, a restorer line Huijiafuzhan with agronomic traits like Xijiafuzhan and a wild-type restorer gene was bred. Use Zhenshan 97A and Huijiafuzhan to form Shanyouhuijiafuzhan.

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PUM

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Abstract

A directional culture method for the restoring line of three-line hybridized rice includes such steps as hybridization between the three-line hybridized rice as female parent and the excellent rice as recurrent male parent, and backcrossing multiple times. Its advantages are high speed and efficiency, and excellent characteristics of resultant cross rice.

Description

technical field [0001] The invention belongs to the technical field of hybrid rice breeding. technical background [0002] In the 1970s, China took the lead in breeding and popularizing three-line hybrid rice in the world. So far, three-line hybrid rice accounts for about 90% of the area of ​​hybrid rice, and it is still the main way to utilize rice heterosis. The representative works discussing the selection method of restorer lines in three-line hybrid rice include: [0003] 1. Rice male sterility biology. Edited by Zhu Yingying, 2000. Wuhan University Press; 426-438 [0004] 2. Heterosis and hybrid rice breeding. [India] By S.S. Virmani. (Heterosis and Hybrid Rice Breeding. Springer-Verlay Berlin Heidelberg, 1994. Printed in Germany). Yang Rencui, translated by Chen Shunhui. 1996. Fujian Science and Technology Press; 73-82 [0005] 3. Rice breeding. Edited by Min Shaokai, Shen Zongtan, and Xiong Zhenmin. 1996. China Agricultural Press; 227-230 [0006] 4. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/02A01G16/00A01G22/22
Inventor 王乃元陈爱媚李毓梁康迳胡启亮
Owner FUJIAN AGRI & FORESTRY UNIV
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