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Special gibberellic acid product for production of seeds of hybrid rice and preparation method thereof

A technology of hybrid rice and gibberellic acid, which is applied in botany equipment and methods, chemicals for biological control, applications, etc., can solve problems such as high labor intensity, increased labor intensity of agricultural operations, and complicated mixed operations, achieving Simplify agricultural operations, improve seed production yield and seed quality, and reduce production costs

Active Publication Date: 2014-03-26
湖南神隆超级稻丰产生化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. General-purpose gibberellic acid is a broad-spectrum plant growth regulator, which only solves the basic needs of crop growth regulation, lacks pertinence for regulation of hybrid rice seed production, low utilization efficiency, and large dosage
[0006] 2. The mixed use of general-purpose gibberellic acid and synergist can relatively reduce the amount of gibberellic acid, but it only solves the needs of crop growth by increasing the nutritional content of crops, and the growth rate of crops cannot fully meet the requirements of hybrid rice seed production. growth regulation needs
Moreover, farmers need to reserve a variety of production materials, and the mixed operation is complicated, which increases the labor intensity of farming operations
[0007] 3. Neither gibberellic acid products nor gibberellic acid mixed with synergists can solve the problem of prevention and control of common diseases in hybrid rice seed production
Farmers have done many farming operations with high labor intensity

Method used

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  • Special gibberellic acid product for production of seeds of hybrid rice and preparation method thereof
  • Special gibberellic acid product for production of seeds of hybrid rice and preparation method thereof
  • Special gibberellic acid product for production of seeds of hybrid rice and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Preparation of type I gibberellic acid product:

[0034] First dissolve 1.54% difenoconazole with 5% ethanol, then add the completely dissolved difenoconazole solution to 40% gibberellic acid mother liquor, then add 10% completely melted castor oil polyoxyethylene Ether, stir evenly, then make up with ethanol, and finally adjust the pH value to 2.0-4.0.

[0035] Type I gibberellic acid is used in seed production fields where the dosage of general-purpose gibberellic acid is 15 grams per mu, and the dosage of the product used is about 12 grams per mu.

Embodiment 2

[0037] Preparation of type Ⅱ gibberellic acid product:

[0038] First dissolve 0.69% difenoconazole with 3% ethanol, then add the completely dissolved difenoconazole solution to 40% gibberellic acid mother liquor, then add 10% completely melted castor oil polyoxyethylene Ether, stir evenly, then make up with ethanol, and finally adjust the pH value to 2.0-4.0.

[0039] Type II gibberellic acid is used for seed production fields where the dosage of general-purpose gibberellic acid is about 35 grams per mu, and the dosage of the product used is about 28 grams per mu.

Embodiment 3

[0041] Preparation of type Ⅲ gibberellic acid product

[0042] First dissolve 0.48% difenoconazole with 2% ethanol, then add the completely dissolved difenoconazole solution to 40% gibberellic acid mother liquor, and then add 10% completely melted castor oil polyoxyethylene Ether, stir evenly, then make up with ethanol, and finally adjust the pH value to 2.0-4.0.

[0043] Type III gibberellic acid is used for seed production fields where the dosage of general-purpose gibberellic acid is about 50 grams per mu, and the dosage of the product used is about 40 grams per mu.

[0044] Through the development and test of the product of the present invention in recent years, it has been found that in order to make the parents meet the ideal pollination requirements and obtain high-yield, high-quality F generation, attention must be paid to the variety combination, flowering period, development period, seedling growth, and weather conditions during use. And other factors.

[0045] Dif...

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Abstract

The invention discloses a special gibberellic acid product for production of seeds of hybrid rice and a preparation method thereof. The formula of the product comprises the following components in percentage by weight: 3.0-5.0% of gibberellic acid, 0.01-2.0% of a synergic assistant, 8.0-15.0% of an emulsifier, and the balance of a solvent. The preparation method comprises the following steps: first, dissolving the synergic assistant by the solvent; then, adding the fully dissolved synergic assistant into a gibberellic acid mother liquid; then, adding the emulsifier, uniformly stirring and then supplementing by the solvent; and finally, adjusting the pH value to 2.0-4.0. According to the invention, aiming at special requirements on production of seeds of hybrid rice, the production cost is lowered while crop growth and disease prevention and control are adjusted at the same time, so that the yield of production of seeds and the quality of seeds are improved.

Description

technical field [0001] The invention relates to a special product for hybrid rice seed production, in particular to a special gibberellic acid product for hybrid rice seed production and a preparation method thereof. Background technique [0002] Gibberellic acid is a broad-spectrum plant growth regulator, which enters the plant body through leaves, twigs, flowers, seeds or fruits, and conducts to active parts of growth to take effect. It is a plant growth regulator that must be used in hybrid rice seed production, and there is no substitute product in the application of hybrid rice seed production. [0003] In the early 1990s, researchers from the Rice Institute of Jiangxi Academy of Agricultural Sciences had studied gibberellic acid synergists mixed with gibberellic acid. The synergist is mainly composed of boric acid and urea, supplemented by potassium nitrate, calcium dihydrogen phosphate, magnesium carbonate, sodium lauryl sulfate, etc. It is a solid powder mixture, mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/653A01N43/12A01N37/50A01P3/00A01P21/00
Inventor 曾威周陈刚
Owner 湖南神隆超级稻丰产生化有限公司
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