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Castration method for rice hyberdization

A rice hybridization and rice technology, which is applied in the direction of botany equipment and methods, application, plant gene improvement, etc., can solve the problems of incomplete castration, high labor intensity, hybridization failure, etc., achieve great application and promotion prospects, and improve work efficiency , the effect of low seed setting rate

Inactive Publication Date: 2014-04-23
江苏丰收种业有限公司 +1
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  • Abstract
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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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Abstract

The invention discloses a castration method for rice hyberdization, belongs to the technical field of crop breeding and particularly relates to a new castration method for rice hyberdization based on spikelet clipping and water spraying. The castration method for rice hyberdization comprises the following steps: 1, determining reasonable sowing time; 2, selecting rice plants; 3, pruning spikes of whole plants; 4, performing castration based on spikelet clipping and water spraying; and 5, performing pollination timely and efficiently. According to the castration method disclosed by the invention, the problems of high labor intensity, incomplete castration and hyberdization failure due to pistil damage in the past rice hyberdization work are solved, and the technology used in the castration method has the advantages of labor and cost economy, simplicity and convenience in operation, high hyberdization success rate, economy, environment friendliness and the like, and is highly popular among scientific research workers on breeding, 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
Inventor 赵其兵卜加武陈志鹏陈甫龙陈智慧王红卫朱山
Owner 江苏丰收种业有限公司
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