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Composition for regulating plant growth and its preparation and application

A technology for plant growth and composition, applied in the field of compositions for regulating plant growth, can solve the problems of high technical requirements, difficult to master, time-consuming and labor-intensive, etc.

Inactive Publication Date: 2017-03-08
SICHUAN GUOGUANG AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned chemical regulation methods have a single idea, and all of them are direct selection of regulator compound products that regulate the growth of the aboveground part. There is a problem of reduced yield due to excessive suppression of plant height. There is no one that can shorten the height of aboveground stems and promote root growth. conditioning composition
The manual adjustment method has high technical requirements for personnel, is difficult to master, is time-consuming and laborious, and has the characteristics of delay, so it can only play a remedial role.

Method used

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  • Composition for regulating plant growth and its preparation and application
  • Composition for regulating plant growth and its preparation and application
  • Composition for regulating plant growth and its preparation and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1. Test object: wheat, variety: Shaanxi 253

[0033] 2. Test drugs: 96% trinexapac-ethyl and 80% chitosan oligosaccharides, all provided by Sichuan Guoguang Agrochemical Co., Ltd.

[0034] 3. Medication period: wheat jointing period

[0035] 4. Test method: Quantitatively weigh the trinexapac-ethyl and chitosan oligosaccharides required for the test, prepare the required concentration according to Table 1, and set clear water treatment as a blank control. After preparing the medicinal solution, spray it at the jointing stage of wheat, with a dosage of 80ml / m 2 , per treatment 1m 2 , repeated 4 times.

[0036] 5. Statistical analysis of data: after wheat spraying, measure initial node height, select 9 sample points by diagonal line in each plot, measure the node height of 60 days (when wheat is mature) after the drug of sample point wheat, calculate Section height inhibition rate, the calculation formula is as follows:

[0037] Inhibition rate of node height = (cont...

Embodiment 2

[0044] 1. Test object: wheat, variety: Shaanxi 253

[0045] 2. Test drugs: 96% trinexapac-ethyl and 80% chitosan oligosaccharides, all provided by Sichuan Guoguang Agrochemical Co., Ltd.

[0046] 3. Medication period: wheat jointing period

[0047] 4. Test method: Quantitatively weigh the trinexapac-ethyl and chitosan oligosaccharides required for the test, prepare the required concentration according to Table 2, and set clear water treatment as a blank control. After preparing the medicinal solution, spray it at the jointing stage of wheat, with a dosage of 80ml / m 2 , per treatment 1m 2 , repeated 4 times.

[0048] 5, statistical analysis of data: after wheat spraying, select 9 sample points by diagonal line in each plot, measure the root dry weight of 60 days (when wheat is ripe) after the medicine of sample point wheat, calculate root dry weight promotion The calculation formula is as follows:

[0049] Root dry weight promotion rate = (dry weight of treated roots - dry...

Embodiment 3

[0056] 1. Test object: wheat, variety: Shaanxi 253

[0057] 2. Test drugs: 96% trinexapac-ethyl and 80% chitosan oligosaccharides, all provided by Sichuan Guoguang Agrochemical Co., Ltd.

[0058] 3. Medication period: wheat jointing period

[0059] 4. Test method: Quantitatively weigh the trinexapac-ethyl and chitosan oligosaccharides required for the test, prepare the required concentration according to Table 2, and set clear water treatment as a blank control. After preparing the medicinal solution, spray it at the jointing stage of wheat, with a dosage of 80ml / m 2 , per treatment 1m 2 , repeated 4 times.

[0060] 5. Statistical analysis of data: After spraying the wheat, select 9 sampling points in each plot according to the diagonal line, harvest all 60 days after spraying, measure the dry weight of single ear wheat grains, and calculate the yield increase rate. The calculation formula of the yield increase rate is as follows :

[0061] Yield increase rate = (dry weig...

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Abstract

The invention discloses a composition for regulating plant growth and its preparation and application. The composition is composed of trinexapac-ethyl and chitooligosaccharide. A weight ratio of trinexapac-ethyl to chitooligosaccharide is 1: (0 .02-50). Through reducing the height of the crop base between sections 1 and 2, the composition or the preparation can effectively inhibit aboveground part vegetative growth, promote root growth, enhance the ability to absorb nutrients in the soil and improve a crop lodging-resistance capability and yield.

Description

technical field [0001] The invention relates to the field of plant growth regulators, in particular to a composition, preparation and application for regulating plant growth. Background technique [0002] Grass crops are prone to lodging when encountering heavy wind and rain before they mature, which has a great impact on grain yield. Effective anti-lodging measures should be taken to reduce yield loss. The main characteristics of lodging are: first, the length of the 1-2 internodes at the base, and the height of the internodes should be controlled, otherwise it is easy to cause lodging; the second is the toughness of the internodes at the base. The ground is about 15 cm, and then quickly withdraw the hand to determine the lodging resistance ability by observing the number and speed of the plant's swing. If the swing is more than 5 times, and the swing is faster, such a plant will generally not lodging. If it is less than 5 times, And the speed is slower, it may be lodging ...

Claims

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Application Information

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IPC IPC(8): A01N43/16A01N37/42A01P21/00
CPCA01N43/16A01N37/42A01N2300/00
Inventor 钟利颜亚奇陈曦
Owner SICHUAN GUOGUANG AGROCHEM
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