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Rice restorer creation method applicable to mechanized seed production

A restorer line and rice technology, applied in botany equipment and methods, applications, plant genetic improvement, etc., can solve problems such as low efficiency, and achieve the effects of improving utilization efficiency, increasing seed production yield, and expanding the number of planting rows

Inactive Publication Date: 2016-05-04
RICE RES ISTITUTE ANHUI ACAD OF AGRI SCI
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  • Description
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AI Technical Summary

Problems solved by technology

Since rice is a self-pollinating crop, its stamens are located inside the rice husk, and the seed production must undergo violent physical vibrations before it can be propagated, and the efficiency is very low

Method used

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Examples

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Embodiment Construction

[0019] In this example, aiming at the current technical difficulties of hybrid rice mechanized seed production, rice germplasm resources with the characteristics of long filaments, large stamens, and large glume opening angles are used to create excellent comprehensive traits through hybridization, backcrossing and other breeding methods. The rice strong restorer line with long filaments, large stamens, and large glume opening angle can improve the pollen dispersal ability of the male parent of seed production, thereby improving the efficiency of seed production, so as to adapt to mechanized seed production.

[0020] A method for creating a rice restorer line suitable for mechanized seed production, comprising the following steps:

[0021] 1. Through field observation, screen germplasm resources at home and abroad, and select rice germplasm resources with the characteristics of long filaments, large stamens, and large glumes with open angles. Among them, long filaments are a ma...

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Abstract

The invention discloses a rice restorer creation method applicable to mechanized seed production. According to the method, rice genetic resources which have the characteristics of long filaments, large stamens and large glume field angles are utilized, great rice restorers which are excellent in comprehensive character and have the characteristics of long filaments, large stamens and large glume field angles are created by such means as hybridization and backcross, pollen spreading capability of seed production male parents is improved, and seed production efficiency is further improved, so that the method can be adapted to mechanized seed production.

Description

technical field [0001] The invention relates to a method for creating a rice restorer line suitable for mechanized seed production. Background technique [0002] Rice is the main crop in my country and even in Asia. The planting area of ​​hybrid rice in my country exceeds 20 million hectares, and it has broad prospects for promotion, which is of great significance to ensuring food security in my country. [0003] At present, the mechanized seed production of hybrid rice is a difficult point. How to ensure that the pollen of the male parent is sufficient and effectively spread to the female parent, thereby increasing the yield of seed production, is one of the focuses of researchers and seed producers. Since rice is a self-pollinating crop, its stamens are located inside the chaff of rice, and the seed production must undergo violent physical vibrations before it can be propagated, and the efficiency is very low. Contents of the invention [0004] The technical problem to ...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/04
CPCA01H1/02A01H1/04
Inventor 马廷臣李泽福夏加发王元垒周坤能
Owner RICE RES ISTITUTE ANHUI ACAD OF AGRI SCI
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