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Growth regulating agent capable of improving hybrid rice seed production and sterile line seed reproduction yield and application

A growth regulator and hybrid rice technology, applied in the fields of growth regulators and plant growth regulators, can solve the problems of restricting the development of hybrid rice, soil damage, low utilization rate, etc. strong effect

Inactive Publication Date: 2016-04-20
INST OF CROP SCI CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] An important way to utilize rice heterosis is hybrid seed production, but under normal circumstances, the actual yield of hybrid seed production and sterile line propagation is low, which greatly restricts the development of hybrid rice
[0004] In addition, rice requires a large amount of fertilizer during the planting process, but the traditional fertilization in my country often has low utilization rate and causes damage to the soil.

Method used

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  • Growth regulating agent capable of improving hybrid rice seed production and sterile line seed reproduction yield and application
  • Growth regulating agent capable of improving hybrid rice seed production and sterile line seed reproduction yield and application
  • Growth regulating agent capable of improving hybrid rice seed production and sterile line seed reproduction yield and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1 can improve the growth regulator and its application of hybrid rice seed production and sterile line seed propagation yield

[0019] The formula of the growth regulator in this example (content per 1 L): 0.1 mg of 2,4-epibrassinolide, 30 mg of 3-indole acetic acid, 0.5 mg of zeatin, pH value 5.8-6.5.

[0020] The preparation method of the growth regulator: weigh 2,4-epibrassinolide, 3-indole acetic acid and zeatin in proportion, first dissolve the above-mentioned components with a small amount of 95% alcohol, then dissolve them in water, and adjust the pH value 5.8~6.5, then set the volume to 1L.

[0021] The field planting method of hybrid rice seed production and multiplication (can be adjusted according to needs during actual application): the planting specification of the sterile line is 16.5cm × 20cm, single planting, the ratio of parent to parent is 2:10, and the operation In the aisle, 1500-2000 holes are planted for male parents and 13000-15000 hol...

Embodiment 2

[0036] Embodiment 2 can improve the growth regulator and its application of hybrid rice seed production and sterile line seed propagation yield

[0037] The formula of the growth regulator of this example (content per 1 L): 1 L of water contains 0.05 mg of 2,4-epibrassinolide, 30 mg of 3-indoleacetic acid, 1.0 mg of zeatin, and the pH value is 5.8-6.5.

[0038] The preparation method of the growth regulator: weigh 2,4-epibrassinolide, 3-indole acetic acid and zeatin in proportion, first dissolve the above-mentioned components with a small amount of 95% alcohol, then dissolve them in water, and adjust the pH value 5.8~6.5, then set the volume to 1L.

[0039] The field planting method of hybrid rice seed production and multiplication (can be adjusted according to needs during actual application): the planting specification of the sterile line is 16.5cm×20cm, single planting, the ratio of parent to parent is 2:10, and the operation In the aisle, 1500-2000 holes are planted for m...

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PUM

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Abstract

The invention provides a growth regulating agent capable of improving hybrid rice seed production and sterile line seed reproduction yield. The growth regulating agent is prepared from the following components: 2,4-epibrassinolide, indole-3-acetic acid, zeatin and water, and the pH value is 5.8 to 6.5. By using the growth regulating agent provided by the invention, in hybrid rice seed production and sterile line seed reproduction, the productive tiller percentage of a sterile line can be improved, so as to increase the number of productive ear, floret degeneration can be reduced, so as to increase kernels per spike, grouting is promoted, so as to improve ripening rate and / or increase thousand seed weight, and finally the hybrid rice seed production yield and the sterile line seed reproduction yield are improved. The growth regulating agent is simple and easy in preparation method, is good in product stability, strong in efficiency, safe and reliable, free of side effect and is suitable for popularization and application in hybrid rice seed production.

Description

technical field [0001] The invention relates to the technical field of plant growth regulators, in particular to a growth regulator capable of improving the yield of hybrid rice seed production and sterile line breeding and its application. Background technique [0002] my country is the largest rice producer and consumer in the world, and more than 60% of the population takes rice as a staple food. The use of heterosis has greatly increased the yield and total yield of rice production in my country, and has made great contributions to ensuring food security in our country. [0003] An important way to utilize rice heterosis is hybrid seed production, but usually, the actual yield of hybrid seed production and sterile line propagation is low, which greatly restricts the development of hybrid rice. [0004] In addition, rice requires a large amount of fertilizer during the planting process, but the traditional fertilization in my country often has a low utilization rate and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/90A01N43/38A01N43/22A01P21/00A01H1/02A01G16/00A01G22/22
CPCA01G22/22A01H1/02A01N43/22A01N43/38A01N43/90A01N2300/00
Inventor 屈平平高用明王文生赵秀琴
Owner INST OF CROP SCI CHINESE ACAD OF AGRI SCI
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