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Paddy field herbicide composition based on non-transgenic imidazolinone herbicide-resistant rice variety

A herbicidal composition and a non-transgenic technology, applied in the field of pesticides, can solve problems such as late application of pesticides that cannot be completely controlled, and achieve the effect of fresh weight inhibition and synergy.

Inactive Publication Date: 2018-02-27
JIANGXI ZHONGXUN AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Works well with early application, not fully controlled with late application

Method used

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  • Paddy field herbicide composition based on non-transgenic imidazolinone herbicide-resistant rice variety
  • Paddy field herbicide composition based on non-transgenic imidazolinone herbicide-resistant rice variety
  • Paddy field herbicide composition based on non-transgenic imidazolinone herbicide-resistant rice variety

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Example 1 Extraction of rice plant tissue extract.

[0059] Get 100 parts of uneared paddy rice root tissue, add 100 ml of absolute ethanol after mashing with a tissue masher, stir for 30 minutes at 10 degrees Celsius, filter with a filter screen, and put the filtrate into a 5000-rpm motor Centrifuge in a centrifuge for 20 minutes, and take the supernatant to obtain the rice plant extract.

Embodiment 2

[0060] Example 2 Activity test.

[0061] According to Colby's formula (evaluating the expected effect of a specific composition, referring to S.R.Colby, "Calculating Synergistic and Antagonistic Responses of Herbicide combinations" Weeds 1967,15,20-22) as follows (recorded in CN103202304B, this invention adopts this evaluation method): A , B, C mixed at a certain dose

[0062] A The survival rate or fresh weight residual rate (%) of the target weeds when A is used alone at a certain dose;

[0063] B The survival rate or fresh weight residual rate (%) of the target weeds when a certain dose is used alone;

[0064] C Survival rate or fresh weight residual rate (%) of target weeds when a certain dose is used alone;

[0065] Evaluation criteria: when the observed value of the survival rate is less than the theoretical value, there is a synergistic effect (synergistic effect).

[0066] Table 1 Test E of the combined effect of imazethapyr, cyhalofop-ethyl, and oxafluzed on Echi...

Embodiment 3

[0199] Embodiment 3 field efficacy test

[0200] Table 58 Field efficacy test of 5% imazethapyr 20% cyhalofop-ethyl 10% fenoxen dispersible oil suspension concentrate on rice field annual weeds based on non-transgenic imidazolinone herbicide-resistant rice varieties ( Weeds were sprayed with 2 leaves and 1 heart. The main weed species in the field were barnyard grass, green barnyardgrass, daughter sedge, broken rice sedge, special-shaped sedge, clove polygonum, hollow lotus, arrowroot, etc., and tested 30 days after the application Fresh weight control effect, fresh weight residual rate = 100-fresh weight control effect)

[0201]

[0202] Table 59 Field efficacy test of 8% imazethapyr 4% clofluridinate 16% fenoxen dispersible oil suspension concentrate on rice field annual weeds based on non-transgenic imidazolinone herbicide-resistant rice varieties ( Spray when the weeds have 2 leaves and 1 heart. The main weed species in the field are barnyard grass, green barnyard barn...

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Abstract

The invention relates to a paddy field herbicidal composition based on non-transgenic imidazolinone herbicide-resistant rice varieties, comprising active ingredients a, b and c; wherein a is selected from imazethapyr, imazamox, imazethapyr, imazamox A kind of in acid, imidazolinic acid, imazapyr, imazamox, imazamox methyl, b and c are respectively selected from aryloxyphenoxypropionic acids, sulfonylureas, sulfonamides, triazoles Pyrimidine sulfonamides, amides, pyrimidinesalicylic acids, pyridyloxyacetic acids, arylpicolinates, quinoline carboxylic acids, phenoxyacetic acids, triketones, pyrazolopyridine rings, oxadi One of azole nitrogen-containing heterocycles, fluorophenyl ethers, triazolinones, organic heterocycles, dithiophosphoric acid esters, and benzonitrile, the categories of b and c can be the same but the specific compounds are different, The combination of a, b and c in a certain proportion has a synergistic effect on the target weeds, and is suitable for preventing annual weeds in paddy fields of non-transgenic rice varieties resistant to imidazolinone herbicides.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a paddy field herbicidal composition based on non-transgenic imidazolinone herbicide-resistant rice varieties. Background technique [0002] The control of weeds in rice fields mainly uses selective herbicides, but selective herbicides have the problem of narrow herbicidal spectrum and incomplete killing of weeds in the control of weeds in rice fields. With the popularization of direct seeding rice, the prevention and control of malignant weeds has become the main problem affecting rice production. At present, there are mainly transgenic herbicide-resistant crops and non-transgenic herbicide-resistant crops commercially produced abroad. There is a huge market demand for non-transgenic herbicide-resistant crops. The Institute of Germplasm Resources and Biotechnology of Jiangsu Academy of Agricultural Sciences has established a complete set of technologies for creat...

Claims

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Application Information

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IPC IPC(8): A01N65/44A01N43/76A01N43/50A01N39/04A01N43/40A01N43/42A01N47/36A01N43/66A01N43/08A01N43/54A01N41/10A01N43/56A01N37/22A01N37/26A01N43/78A01N43/90A01P21/00
CPCA01N65/00A01N37/22A01N37/26A01N39/04A01N41/10A01N43/08A01N43/40A01N43/42A01N43/50A01N43/54A01N43/56A01N43/66A01N43/76A01N43/78A01N43/90A01N47/36A01N65/44
Inventor 王礼文王贵新刘鹏陈佛祥朱刚张志伟
Owner JIANGXI ZHONGXUN AGROCHEM
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