Rice hybridization emasculation method

A rice hybridization and rice technology, applied in the directions of botanical equipment and methods, applications, and plant genetic improvement, can solve problems such as labor-intensive, incomplete emasculation, and hybridization failure, and achieve improved work efficiency and great application and promotion prospects. , the effect of low yield

Inactive Publication Date: 2016-12-07
安徽富牧通生物科技有限公司
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AI Technical Summary

Problems solved by technology

This solves the problems of hybridization failure caused by high labor intensity, incomplete emasculation and damage to pistil in the past. This technology has the advantages of saving labor and cost, easy operation, high hybridization success rate, economical and environmental protection, etc., and is well received by the public. Welcome to scientific research and breeding workers, it has broad application prospects

Method used

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Examples

Experimental program
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Effect test

Embodiment

[0025] 1. Materials and methods:

[0026] 1.1 Test material Japonica rice variety "Huaidao 5"

[0027] 1.2 Experimental design

[0028] 1, 2, 1 Test one. Effects of different pruning methods on the self-seed and outcross-seed of "Huaidao No. 5". The glumes were pruned in the afternoon before pollination and hybridization. A few spikelets had bloomed on the top and the whole panicle was basically drawn out. Cut off the spikelets that have opened and the young spikelets at the lower part of the spike. Cut off 1 / 4, 1 / 3, 1 / 2, 2 / 3, and 3 / 4 of the upper part of the glumes of the reserved florets, and then use a watering can to evenly spray water on the cut florets to make each glume Flowers receive adequate moisture and are then bagged for isolation. On the 2nd day, a part of the treatments were not pollinated as a control, and the self-fertilization situation was counted, and the effect of water spraying to kill males was tested: another part of the treatments was pollinated, a...

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PUM

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Abstract

A rice hybridization emasculation method belongs to the field of crops breeding technology and specifically relates to a new method for rice hybridization spikelets-shearing water-spraying emasculation. The rice hybridization emasculation method of the invention comprises the following steps: 1, reasonable sowing time; 2, rice plant selection; 3, pruning and panicle trimming; 4, spikelets-shearing water-spraying emasculation; and 5, timely and efficient pollination. Problems of previous rice hybridization work, such as high labor intensity, halfway emasculation and hybridization failure caused by damage to pistil are solved. The technology of the invention is labor-saving and cost-saving, is simple to operate, has high success rate of hybridization, is economic and environment friendly, is deeply popular with breeding researchers, and has a wide application prospect.

Description

technical field [0001] The invention relates to a rice hybrid detasseling method, which belongs to the technical field of crop breeding, and specifically relates to a new method of rice hybrid clipping and water spraying detasseling. Background technique [0002] Rice hybridization is an indispensable and important way to improve the traits of rice varieties and create sources of variation in rice breeding. The existing rice hybridization methods have their own advantages and disadvantages: 1. The method of manually cutting glumes and emasculation is more labor-intensive, and the damage to the glumes is relatively large, and if you are not careful, it will damage the flower organ and reduce the seed setting rate; 2. Warm soup to kill males This method can avoid self-fertilization, and the seed setting rate is higher, but it is required to master the suitable temperature and time required for killing males of different rice varieties. Also accomplish both that stamens are al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
CPCA01H1/02
Inventor 陈香全
Owner 安徽富牧通生物科技有限公司
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