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CN116158440B - Composition for increasing thousand-grain weight of wheat - Google Patents

Composition for increasing thousand-grain weight of wheat Download PDF

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Publication number
CN116158440B
CN116158440B CN202310099109.4A CN202310099109A CN116158440B CN 116158440 B CN116158440 B CN 116158440B CN 202310099109 A CN202310099109 A CN 202310099109A CN 116158440 B CN116158440 B CN 116158440B
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Prior art keywords
wheat
powdery mildew
bactericidal composition
composition
thousand
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CN202310099109.4A
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CN116158440A (en
Inventor
张志勇
熊淑萍
韦一昊
王小纯
马新明
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Henan Agricultural University
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Henan Agricultural University
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Priority to CN202411316812.7A priority Critical patent/CN119073313A/en
Priority to CN202310099109.4A priority patent/CN116158440B/en
Publication of CN116158440A publication Critical patent/CN116158440A/en
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/64Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
    • A01N43/647Triazoles; Hydrogenated triazoles
    • A01N43/6531,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G13/00Protection of plants
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/02Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
    • A01N43/04Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
    • A01N43/14Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings
    • A01N43/16Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings with oxygen as the ring hetero atom
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01PBIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
    • A01P3/00Fungicides

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Pest Control & Pesticides (AREA)
  • General Health & Medical Sciences (AREA)
  • Zoology (AREA)
  • Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Plant Pathology (AREA)
  • Dentistry (AREA)
  • Agronomy & Crop Science (AREA)
  • Mycology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Toxicology (AREA)
  • Microbiology (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

本发明属于农药技术领域,具体属于一种提高小麦千粒重的组合物。一种杀菌组合物,所述杀菌组合物有效成分由九里香酮与叶菌唑、戊唑醇或丙硫菌唑复配而成。本发明杀菌组合中九里香酮与其他有效成分进行复配时,在一定质量比范围内对小麦白粉病病原菌具有增效作用,可以提高对小麦白粉病的防治效果,降低小麦白粉病对小麦千粒重的影响,进而有助于提高小麦千粒重。其次,本发明杀菌组合物中九里香酮与其他有效成分进行复配时,可以有效延缓病原菌抗药性的发展,从而可以降低施用单一有效成分时带来的抗药性风险。另外,本发明的杀菌组合物可以降低有效成分的施用量,降低防治成本,可以为开发新型药剂提供支持。The present invention belongs to the technical field of pesticides, and specifically belongs to a composition for increasing the thousand-grain weight of wheat. A bactericidal composition, wherein the active ingredient of the bactericidal composition is compounded with murrayon and metconazole, tebuconazole or prothioconazole. When murrayon and other active ingredients are compounded in the bactericidal combination of the present invention, it has a synergistic effect on wheat powdery mildew pathogens within a certain mass ratio range, can improve the prevention and control effect of wheat powdery mildew, reduce the influence of wheat powdery mildew on wheat thousand-grain weight, and then help to increase wheat thousand-grain weight. Secondly, when murrayon and other active ingredients are compounded in the bactericidal composition of the present invention, the development of pathogen resistance can be effectively delayed, thereby reducing the risk of drug resistance caused by the application of a single active ingredient. In addition, the bactericidal composition of the present invention can reduce the application amount of the active ingredient, reduce the cost of prevention and control, and can provide support for the development of new agents.

Description

Composition for improving thousand seed weight of wheat
Technical Field
The invention belongs to the technical field of pesticides, and particularly relates to a composition for improving thousand seed weight of wheat.
Background
Wheat powdery mildew is a worldwide disease caused by the specialization of wheat (Blumeriagraminis f.sp.tritici) of powdery mildew, a transitive parasitic infection of wheat. Yellow spots are visible in the early stage of disease, and a powdery mildew layer is formed on the surface of the disease gradually develops into a disease spot along with the serious disease. When the illness state is lighter, the mildew spots are distributed in a dispersed way; along with the aggravation of the illness, the mildew spots are gradually expanded into pieces and finally covered with Quan She; the lower part of the disease spot and surrounding tissues fade, and the disease She Fahuang and early blight, the involvement of stems and leaf sheaths can lead to the lodging of the whole plant, the dwarf, the fine and weak plant, the small spike and small grain, the obvious drop of thousand grain weight and finally the influence on the wheat yield.
In agricultural production, the disease-resistant variety is the most economical means for preventing and controlling wheat powdery mildew, but the disease resistance of the disease-resistant variety is lost after a plurality of years of large-area popularization and planting due to the rapid propagation variation speed of the wheat powdery mildew. At present, the most important measure for preventing and treating wheat powdery mildew is chemical prevention, and the commonly used chemical agents are triazole agents such as triazolone, but the powdery mildew has different degrees of drug resistance to a plurality of existing chemical agents due to long-term unreasonable use of single effective component chemical agents. In order to improve the control effect on powdery mildew, reduce the influence of powdery mildew on thousand seed weight of wheat, and reduce the development speed of pathogen drug resistance, it is necessary to develop a novel medicament.
Murrayone, CAS number: 19668-69-0, molecular formula: c 15H14O4 is derived from a plant of the family Rutaceae. The molecular structural formula is as follows:
CN201510815853.5 discloses the use of a natural compound murrayone as an agricultural bactericide, and in the specification, murrayone is disclosed to have control effects on a plurality of diseases such as sclerotinia rot of colza, sheath blight of rice, gray mold of strawberry, scab of wheat, anthracnose of chilli, early blight of tomato, and the like.
The inventor finds that the murrayone, metconazole, tebuconazole or prothioconazole have synergism for preventing and treating powdery mildew of wheat in a certain mass ratio range after being compounded by indoor biological activity experiments. At present, no report on the compounding of the murrayone and the metconazole, the tebuconazole or the prothioconazole exists yet.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
The invention aims to provide a composition for improving thousand seed weight of wheat, which can improve the control effect on wheat powdery mildew compared with single active ingredient, thereby being beneficial to reducing the influence of the powdery mildew on the thousand seed weight of the wheat, and can delay the development of drug resistance of pathogenic bacteria at the same time, and further provide support for developing novel medicaments.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The first object of the invention is to provide a sterilization composition, wherein the effective component of the sterilization composition is compounded by murrayone and metconazole, tebuconazole or prothioconazole.
Preferably, the mass ratio of the murrayone to the metconazole is 1-5:20-1.
Preferably, the mass ratio of the murrayone to the tebuconazole is 1-40:15-1.
Preferably, the mass ratio of the murrayone to the prothioconazole is 1-20:8-1.
A second object of the present invention is to provide a bactericide comprising the bactericidal composition and other auxiliary components.
The third object of the invention is to provide the application of the bactericidal composition in preventing and controlling wheat fungal diseases.
The fourth object of the invention is to provide the application of the bactericidal composition in preventing and treating wheat powdery mildew.
A fifth object of the present invention is to provide the use of the bactericidal composition in increasing thousand kernel weight of wheat.
Compared with the prior art, the invention has the following beneficial effects:
(1) When the murrayone and other effective components in the bactericidal composition are compounded, the bactericidal composition has a synergistic effect on pathogenic bacteria of wheat powdery mildew within a certain mass ratio range, can improve the control effect on the wheat powdery mildew, reduces the influence of the wheat powdery mildew on thousand seed weight of wheat, and further is beneficial to improving the thousand seed weight of the wheat.
(2) When the murrayone and other effective components in the bactericidal composition are compounded, the development of drug resistance of pathogenic bacteria can be effectively delayed, so that the drug resistance risk brought by the application of a single effective component can be reduced.
(3) The bactericidal composition can reduce the application amount of active ingredients and the control cost, and can provide support for developing novel medicaments.
Detailed Description
The invention will be better understood from the following examples. However, it will be readily appreciated by those skilled in the art that the description of the embodiments is provided for illustration only and should not limit the invention as described in detail in the claims.
Examples: indoor biological activity test of murrayone after compounding
1. Test crop: the 'Zhengmai 9023' wheat seeds are cultivated in a pot to 2-3 true leaf periods, and 10 plants are numbered for standby.
2. Test agent
98% Murrayone original drug (Shanghai Yuan Ye Biotechnology Co., ltd.)
95% Metconazole crude drug (Shanghai Heteng Fine chemical Co., ltd.)
97% Tebuconazole original drug (Shenyang scientific chemical Co., ltd.)
95% Prothioconazole (Ningxia Yifan biotechnology Co., ltd.)
3. Test method (refer to NY/T1156.4-2008, section 4 of pesticide laboratory biological test criterion Bactericide: test pot method for controlling wheat powdery mildew)
3.1 Preparation of medicament: dissolving the raw material with dimethyl sulfoxide, diluting with 0.1% Tween-80 solution, respectively preparing single-dose mother solution, setting multiple groups of ratios, and setting 5 series mass concentration gradients for each single dose and each group of ratio mixture;
3.2 inoculation treatment: uniformly shaking off fresh spores of powdery mildew (Blumeria graminis f.sp.tritici) generated in 24h on the leaves of the pathogenic wheat, and inoculating the fresh spores on wheat seedlings to be tested;
3.3 treatment with pharmaceutical agent: after 24 hours, the liquid medicine is evenly sprayed on the leaf surfaces of the wheat seedlings to be tested until the wheat seedlings are totally wet, each treatment basin is provided with 3 basins, and the treatment of the water solution containing only 0.1 percent of Tween-80 is used as a blank control; after natural air drying, the mixture is moved to a thermostatic chamber, and the mixture is irradiated at the temperature of 22 ℃ with light: dark = 16h: culturing was continued for 8 hours.
3.4 Investigation and calculation: when the leaf rate of the blank control reaches more than 80%, the disease conditions of each treatment are investigated according to the grading standard of the table 1. And calculating the disease index and the prevention and treatment effect of each treatment according to the investigation data. Wherein, the grading standard is shown in Table 1.
TABLE 1 disease grade assessment criteria
3.5 Data analysis: and carrying out data statistical analysis by adopting DPS software, carrying out linear regression by taking the logarithmic value of the concentration of the bactericide as x and the corresponding control efficiency value as y to obtain a virulence regression equation and the virulence EC 50 value of the medicament on the target pathogen, and calculating a co-toxicity coefficient (CTC) according to the grand cloud Pei method.
3.6. Drug efficacy evaluation: the synergy of the agents was evaluated based on the calculated co-toxicity coefficients, CTC.ltoreq.80 being antagonism, CTC.ltoreq.120 being additive, CTC.ltoreq.120 being synergy, the results being shown in tables 2-4.
Table 2 results of indoor biological Activity test of Murrayone and metconazole against wheat powdery mildew
As can be seen from table 2, at 1-5: within the mass ratio of 20-1, the common toxicity coefficient of the murrayone and the metconazole to the wheat powdery mildew is more than 120, and the synergistic effect is shown.
Table 3 results of indoor biological Activity test of Murrayone and Tebuconazole Complex against wheat powdery mildew
As can be seen from Table 3, at 1-40: within the mass ratio of 15-1, the common toxicity coefficient of the murrayone and the tebuconazole to the wheat powdery mildew is more than 120, and the synergistic effect is shown.
Table 4 results of indoor biological Activity test of Murrayone and Prothiabendazole on wheat powdery mildew
As can be seen from Table 4, at 1-20: in the mass ratio of 8-1, the common toxicity coefficient of the murrayone and the prothioconazole to the wheat powdery mildew is more than 120, and the synergistic effect is shown.
In conclusion, when the murrayone is compounded with metconazole, tebuconazole or prothioconazole in the bactericidal composition disclosed by the invention, the bactericidal composition has a synergistic effect on pathogenic bacteria of wheat powdery mildew within a certain mass ratio range, can improve the control effect on the wheat powdery mildew, reduces the influence of the wheat powdery mildew on thousand seed weight of wheat, and further is beneficial to improving the thousand seed weight of the wheat.
The foregoing descriptions of specific exemplary embodiments of the present invention are presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application to thereby enable one skilled in the art to make and utilize the invention in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (3)

1. The bactericidal composition for preventing and treating the wheat powdery mildew is characterized in that the bactericidal composition for preventing and treating the wheat powdery mildew is prepared by compounding active ingredients of murrayone and metconazole, wherein the mass ratio of murrayone to metconazole is 1-5:20-1.
2. A bactericide, characterized in that it comprises the bactericidal composition for preventing and treating powdery mildew of wheat according to claim 1 and other auxiliary ingredients.
3. Use of the bactericidal composition for preventing and treating wheat powdery mildew as claimed in claim 1.
CN202310099109.4A 2023-02-11 2023-02-11 Composition for increasing thousand-grain weight of wheat Active CN116158440B (en)

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CN202310099109.4A CN116158440B (en) 2023-02-11 2023-02-11 Composition for increasing thousand-grain weight of wheat

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105340892A (en) * 2015-11-23 2016-02-24 江苏省中国科学院植物研究所 Applications of natural compound Murrayone as agricultural bactericide

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* Cited by examiner, † Cited by third party
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CA2647216A1 (en) * 2006-03-24 2007-10-04 Andres Antonio Leschot Sanhueza Compositions and methods to add value to plant porducts, increasing the commercial quality, resistance to external factors and polyphenol content thereof
CN102578125B (en) * 2007-10-09 2013-09-11 中国中化股份有限公司 Fungicidal composition
CN106172421A (en) * 2016-07-05 2016-12-07 南京农业大学 A kind of containing metconazole and the bactericidal composition of Tebuconazole and application
CN106332893A (en) * 2016-08-22 2017-01-18 江苏辉丰农化股份有限公司 Pesticide composition
CN106386820A (en) * 2016-08-31 2017-02-15 柳州市惠农化工有限公司 Pesticide composition containing 2-methylsulfonyl-5-(2,4-dichlorophenyl)-1,3,4-oxadiazole and tebuconazole
CN114097795A (en) * 2020-08-26 2022-03-01 山东省联合农药工业有限公司 Bactericidal composition containing pyrazole amide compounds and triazole bactericide

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105340892A (en) * 2015-11-23 2016-02-24 江苏省中国科学院植物研究所 Applications of natural compound Murrayone as agricultural bactericide

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
几种药剂防治黄瓜霜霉病和小麦白粉病的防治效果;王斌 等;《农药》;20181231;第57卷(第12期);摘要 *

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