CN114916549B - Plant growth regulating composition, preparation and application thereof - Google Patents

Plant growth regulating composition, preparation and application thereof Download PDF

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Publication number
CN114916549B
CN114916549B CN202110874711.1A CN202110874711A CN114916549B CN 114916549 B CN114916549 B CN 114916549B CN 202110874711 A CN202110874711 A CN 202110874711A CN 114916549 B CN114916549 B CN 114916549B
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Prior art keywords
plant growth
emulsifier
growth regulator
thidiazuron
regulating composition
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CN114916549A (en
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高祥文
李向阳
赵圣英
张晶晶
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Shandong Shibang Agrochemical Co ltd
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Shandong Shibang Agrochemical Co ltd
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION 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
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/02—Biocides, 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
    • A01N43/04—Biocides, 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
    • A01N43/22—Biocides, 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 rings with more than six members
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION 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
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/22—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing ingredients stabilising the active ingredients
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION 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
    • A01N27/00—Biocides, pest repellants or attractants, or plant growth regulators containing hydrocarbons
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION 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
    • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
    • A01N37/12—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group, wherein Cn means a carbon skeleton not containing a ring; Thio analogues thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION 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
    • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
    • A01N37/42—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing within the same carbon skeleton a carboxylic group or a thio analogue, or a derivative thereof, and a carbon atom having only two bonds to hetero atoms with at the most one bond to halogen, e.g. keto-carboxylic acids
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION 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
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/02—Biocides, 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
    • A01N43/04—Biocides, 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
    • A01N43/06—Biocides, 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 five-membered rings
    • A01N43/12—Biocides, 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 five-membered rings condensed with a carbocyclic ring
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION 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
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/02—Biocides, 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
    • A01N43/04—Biocides, 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
    • A01N43/14—Biocides, 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
    • A01N43/16—Biocides, 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
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION 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
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
    • A01N43/36—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom five-membered rings
    • A01N43/38—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom five-membered rings condensed with carbocyclic rings
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION 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
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
    • A01N43/647—Triazoles; Hydrogenated triazoles
    • A01N43/653—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION 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
    • A01N45/00—Biocides, pest repellants or attractants, or plant growth regulators, containing compounds having three or more carbocyclic rings condensed among themselves, at least one ring not being a six-membered ring
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION 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
    • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
    • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
    • A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
    • A01N47/12—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing a —O—CO—N< group, or a thio analogue thereof, neither directly attached to a ring nor the nitrogen atom being a member of a heterocyclic ring
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION 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
    • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
    • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
    • A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
    • A01N47/24—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing the groups, or; Thio analogues thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION 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
    • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
    • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
    • A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
    • A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION 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
    • A01N57/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
    • A01N57/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds
    • A01N57/20—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds containing acyclic or cycloaliphatic radicals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture

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

Abstract

The invention relates to the technical field of pesticides, in particular to a plant growth regulator composition, a preparation and application thereof. The composition comprises thidiazuron and brassinolide; the thidiazuron and brassinolide; the mass ratio of the thidiazuron to the brassinolide is (1.6-135): 1. the preparation prepared from the plant growth regulator composition and the auxiliary materials acceptable in agriculture and pharmacy has a good regulation effect on the yield of crops, and the loss and the damage of chemical pesticides to the crops are greatly reduced; meanwhile, the composition has no resistance, higher activity, low usage amount of weapons and low use cost.

Description

Plant growth regulating composition, preparation and application thereof
Technical Field
The invention relates to the technical field of pesticides, and the IPC classification number is A01N43/653, in particular to a plant growth regulating composition, a preparation and application thereof.
Background
Thidiazuron is a plant photosynthesis promoter, and has obvious effect on increasing yield. Thidiazuron can promote cell division and fruit expansion. The fruit-vegetable-seed-vegetable composite material has obvious promotion effect on cell division, and has promotion effect on transverse growth and longitudinal growth of organs, thereby playing a role in expanding fruits; can delay leaf aging, prolong green keeping time, strengthen chlorophyll synthesis, improve photosynthesis, and promote leaf color deepening to green; breaking the top end advantage, promoting the germination of lateral buds, being capable of penetrating the differentiation of the guide buds, promoting the generation of lateral branches, increasing the number of flowers, improving the pollen fertility, increasing the number of fruits and improving the yield; improving crop quality and improving commodity. Inducing parthenocarpy, stimulating ovary expansion, preventing flower and fruit drop, promoting protein synthesis, and increasing sugar content. The wheat can promote tillering, resist freezing injury and relieve herbicide injury after being sprayed before winter; the use in the turning green stage can resist the cold of the spring, increase secondary tillering and increase the spike number per mu; the spray can resist dry hot air and green branch wax pole in the early stage of flowering, and can raise thousand grain weight. The herbicide can also be used for increasing the yield of corns, peanuts, paddy rice, gingers, apples, beans, strawberries, vegetables and the like, has stable effect under different climates and ecological environment conditions, has the defects of different degrees in the agricultural weeding process of herbicide varieties containing single active ingredients, is easy to generate drug resistance after continuous long-time continuous use, has insufficient weeding spectrum and cannot be prevented.
The invention provides a plant growth regulating composition containing thidiazuron and brassinolide, which not only improves the yield of crops and relieves the defect that some regulators in the market have lower activity and generate drug resistance, but also obviously improves the stability of the plant growth regulator by optimizing auxiliary materials such as auxiliary agents, emulsifying agents and the like.
Disclosure of Invention
In order to solve the technical problem, the first aspect of the invention provides a plant growth regulating composition, which comprises 6-7wt% of active ingredient A, wherein the active ingredient A is brassinolide and derivatives thereof.
As a preferred embodiment of the present invention, the plant growth regulating composition comprises 6wt% to 7wt% of the active ingredient A1 having the following structure,
The structure A1 is as follows:
As a preferred technical scheme of the invention, the plant growth regulating composition further comprises an active ingredient B, wherein the active ingredient B is selected from one of thidiazuron, pyraclostrobin, uniconazole, diethyl aminoethyl hexanoate, gibberellic acid, S-abscisic acid, polyoxin, kasugamycin, indoleacetic acid, forchlorfenuron and ethephon.
As a preferred embodiment of the present invention, the plant growth regulating composition comprises an active ingredient B and an active ingredient A in a mass ratio of (1.6-135) to 1.
As a preferred technical scheme of the invention, the plant growth regulating composition comprises thidiazuron and an active ingredient A in a mass ratio of (1.6-135) to 1.
As a preferred embodiment of the present invention, the plant growth regulating composition comprises thidiazuron and active ingredient A in a mass ratio of 15:1.
In a second aspect the present invention provides a plant growth regulator comprising from 0.1 to 0.5wt% of any of the plant growth regulating compositions described above.
As a preferable technical scheme of the invention, the formulation of the plant growth regulator is one selected from wettable powder, dispersible oil suspension, soluble agent and microemulsion.
As a preferred technical scheme of the invention, the plant growth regulator further comprises an auxiliary agent of the following structural formula (1):
wherein, R 1 = H or C1-C5 alkyl, R 2 = C1-C3 alkyl, and R 3 = C1-C3 alkyl.
In a third aspect the present invention provides the use of a plant growth regulating composition in the agricultural field to promote or regulate plant growth.
The beneficial effects are that:
1. The thidiazuron and the 28-Gao Yuntai lactone are used in a compounding way, so that the synergistic effect on crops is obvious, the yield of the crops is well regulated, and the loss and the damage of chemical pesticides to the crops are greatly reduced;
2. the growth regulator soluble agent has remarkable promotion and synergy effects on crops at the dosage of 0.32-0.53mg/Kg, has no resistance among the compositions, has higher activity, and has low usage amount and low use cost for weapons;
3. According to the invention, the growth regulator can be dissolved to have good heat storage stability and cold storage stability by selecting specific auxiliary agents and controlling the proportion and the addition amount of the auxiliary agents through a large number of experiments, so that the drug effect of the growth regulator soluble agent can be fully exerted;
4. safety experiments are carried out on the growth regulator soluble agent by referring to pesticide safety evaluation criteria (NY/T1965.1-2010), and the experimental results show that the growth regulator soluble agent is safe to crops.
Detailed Description
In order to solve the technical problem, the first aspect of the invention provides a plant growth regulating composition, which comprises 6-7wt% of active ingredient A, wherein the active ingredient A is brassinolide and derivatives thereof.
In a preferred embodiment, the plant growth regulating composition comprises from 6% to 7% by weight of active ingredient A1 of the structure,
The structure A1 is as follows:
in a preferred embodiment, the plant growth regulating composition further comprises an active ingredient B selected from one of thidiazuron, pyraclostrobin, uniconazole, diethyl aminoethyl hexanoate, gibberellic acid, S-lure, polyoxin, kasugamycin, indoleacetic acid, forchlorfenuron, ethephon.
In a preferred embodiment, the plant growth regulating composition comprises thidiazuron and active ingredient A in a mass ratio of 15:1.
In a preferred embodiment, the plant growth regulating composition comprises thidiazuron and active ingredient A in a mass ratio of 15:1.
In a preferred embodiment, the plant growth regulating composition comprises thidiazuron and active ingredient A1 in a mass ratio of (1.6-135) to 1.
In a preferred embodiment, the plant growth regulating composition comprises thidiazuron and active ingredient A1 in a mass ratio of 15:1.
The thidiazuron has the structure that:
thiabendazole Long Youchen defoliating agent has strong plant cell division promoting activity by promoting accumulation and synthesis of catalytic cell division nucleotide mitogen in plant tissues, and simultaneously further promoting growth and regeneration of tissues.
The active ingredient A1 is specifically 28-Gao Yuntai lactone (28-HBR) which is an active form of brassinolide and can directly or indirectly remove active oxygen in plants so as to maintain physiological metabolism of the plants. The 28-Gao Yuntai lactone can regulate plant growth from three physiological actions of promoting plant division, promoting photosynthesis and raising plant stress resistance.
The thidiazuron and the 28-Gao Yuntai lactone in the invention are the effective components of pesticides available in the pesticide field. The source of the thidiazuron is not limited, and the purchasers of thidiazuron include, but are not limited to, jiangsu Lbang; the manufacturers of 28-Gao Yuntai lactone include, but are not limited to, jiangxi Weidi.
In the invention, the inventor finds that the thidiazuron and the 28-Gao Yuntai lactone are compounded and used in the invention through a large number of experiments, especially the thidiazuron and the 28-Gao Yuntai lactone with the mass ratio of 15:1 are compounded and used, a synergistic effect is generated, the effect of increasing yield of plants, especially wheat, can be well achieved, the activity of some plant growth regulators on the market is lower, the effect is general, the effect of increasing yield is not achieved, and the thidiazuron and the 28-Gao Yuntai lactone with the mass ratio of 15:1 are compounded and used in the invention, so that the stress resistance of crops is improved, the photosynthesis is also improved, the nutrition growth is regulated, and the yield of the crops is further increased.
In a second aspect the present invention provides a plant growth regulator comprising from 0.1 to 0.5wt% of any of the plant growth regulating compositions described above.
In a preferred embodiment, the plant growth regulating comprises 0.12 to 0.2wt% of any of the plant growth regulating compositions described above.
In a more preferred embodiment, the plant growth regulating comprises 0.16wt% of any of the plant growth regulating compositions described above.
In one embodiment, the plant growth regulator is in a dosage form selected from one of wettable powder, dispersible oil suspension, soluble agent, microemulsion.
In a preferred embodiment, the plant growth regulator is in the form of a solution.
In a preferred embodiment, the auxiliaries of the following formula (1):
wherein, R 1 = H or C1-C5 alkyl, R 2 = C1-C3 alkyl, and R 3 = C1-C3 alkyl.
In one embodiment, the content of the auxiliary agent in the plant growth regulation is 10-20wt%; preferably 13-17wt%; further preferably 15wt%.
In a preferred embodiment, R 1＝H,R2 = C1 alkyl, R 3 = C1 alkyl, and the structure of the auxiliary agent is:
The chemical name is N, N-dimethylformamide.
In order to provide the plant growth regulator solution with excellent properties, in one embodiment, the plant growth regulator further comprises an emulsifier selected from at least one of a tween-series emulsifier, a fatty alcohol polyvinyl ether-series emulsifier, a condensate-series emulsifier of alkylphenol with ethylene oxide, a nonylphenol polyoxyethylene ether-series emulsifier, a nonionic-series emulsifier, and a BYK-series emulsifier.
Tween-series emulsifiers which may be mentioned include Tween T-80, tween T-60, tween T-40, etc.
In a preferred embodiment, the emulsifier is a nonionic series emulsifier.
In one embodiment, the mass ratio of the emulsifying agent to the auxiliary agent is 8:10-20; preferably 8:14-16; further preferably 8:15.
In one embodiment, the nonionic emulsifiers have an HLB value of from 12 to 16.
The HLB value refers to the hydrophilic-lipophilic balance value, wherein the lower the HLB value, the more lipophilic the emulsifier is; the higher the HLB value, the more hydrophilic the emulsifier.
In one embodiment, the nonionic series emulsifier is selected from at least one of 600 emulsifier, 601 emulsifier, 602 emulsifier, 603 emulsifier.
In a preferred embodiment, the nonionic series emulsifier is 602 emulsifier.
The stability has great influence on the drug effect of the plant growth regulator soluble agent, especially the stability of the original drug, when the original drug is recovered to be crystallized and the preparation is layered, the phenomenon is often irreversible, different systems are needed to be selected from different emulsifying agents and auxiliary agents, a great number of experiments prove that the thermal storage stability of the plant growth regulator soluble agent can be well increased by the mutual synergistic effect of the 602 emulsifying agent and the N, N-dimethylformamide in the system, the water phase can be formed due to the fact that the thidiazuron in the system can be well dissolved in the water, the 28 high brassinolide can be well dissolved in the N, N-dimethylformamide to form an organic phase, the polyoxyethylene in the 602 emulsifying agent is provided with a shell structure in the system, the acting force between the N, N-dimethylformamide and the 28 Gao Yuntai lactone is further promoted, meanwhile, the alkyl chain on the N, N-dimethylformamide is shorter, the steric hindrance cannot be caused to be large, the emulsifying agent 602 with the HLB value of 12-16 can be well reduced, the water phase can be well fused with the water phase, and the phenomenon of preventing the water drop from being well fused due to the fact that the water drop is well mixed with the high temperature can be prevented.
However, it has been found through a large number of experiments that in the system of the present invention, the amount of 602 emulsifier is not as high as possible, when the amount of 602 emulsifier is too high, the stability of the plant growth regulator soluble agent is affected, probably because the emulsifier is more capable of forming an external phase with an aqueous phase to form an O/W stable system with an organic phase, but when the amount of 602 emulsifier is too high, the state that the density of the external phase is not equal to that of the organic phase (internal phase) is easy to occur, and at a higher temperature, the movement of some micro droplets in the system is aggravated, the system is easy to be uneven, and the stability is affected; likewise, N, N-dimethylformamide needs to be well stable with the emulsifier in a certain ratio range.
In one embodiment, the plant growth regulator further comprises a C1-C6 alcohol (e.g., methanol, ethanol, propanol, butanol, pentanol, etc.).
In a preferred embodiment, the weight ratio of C1-C6 alcohol to emulsifier is (7-12) to 8; further preferably (9-11) to 8; still more preferably 10:8.
In a preferred embodiment, the plant growth regulator further comprises a C2 alcohol, in particular ethanol.
Through a number of experiments, the inventors found that adding a certain amount of N, N-dimethylformamide can synergistically act with 602 emulsifiers to increase the thermal storage stability of the plant growth regulator solutions, but it is possible that the strong polarity of N, N-dimethylformamide is detrimental to the low temperature stability of the present system, and also possible that 602 emulsifiers are more hydrophilic and do not contribute to the low temperature stability of the plant growth regulator solutions. The inventor unexpectedly found that short-chain alcohols, especially methanol and ethanol, can reduce interfacial tension by cooperating with 602 emulsifying agent, can form hydrogen bond with aqueous solution by dissolving ethanol in water, and can also form hydrogen bond with amino molecule in thidiazuron, thereby increasing system stability, and can reduce the amount of N, N-dimethylformamide by cooperating with N, N-dimethylformamide, and can prolong the time of separating out effective component and separating out crystallization by storing the preparation at low temperature.
However, the applicant found in experiments that the amount of ethanol is not as high as possible, when the amount of ethanol is too high, the heat storage stability and cold storage stability of the plant growth regulator solution are affected, probably because the amount of ethanol is too high, the amount of ethanol in the system is gradually increased, so that the liquid drops in the system are in an uneven state, and the liquid drops are aggregated to cause layering, uneven and other phenomena of the plant growth regulator solution, and probably because the boiling point of ethanol is low, the ethanol diffuses in the system in an environment with a higher temperature, and then overlaps with other liquid drops in the system in space, so that coalescence is caused.
100Wt% of the remaining raw material in the plant growth regulator is water.
In one embodiment, the method of preparing a plant growth regulator comprises: weighing the regulator composition, the auxiliary agent, the emulsifier, the C1-C6 alcohol and the water according to the corresponding weight, stirring, mixing, settling and filtering to obtain the plant growth regulator.
In one embodiment, the plant growth regulator soluble solution is diluted with 500-1500 times of water for use, specifically, the dosage of the plant growth regulator soluble solution is 0.2-0.7mg/Kg; preferably, the dosage of the plant growth regulator soluble agent is 0.32-0.53mg/Kg when in use.
The activity of some existing plant growth regulators is low, the effect is poor, and the plant generates resistance to the plant growth regulators because of long-time use, and through a great deal of researches, the inventor discovers that the promotion effect and the yield increase effect of the plant growth regulator soluble agent in the system are more obvious under the dosage of 0.32-0.53mg/Kg, compared with the conventional plant growth regulators, the application amount of conventional pesticides is reduced, the control effect is improved, and the pesticide cost is greatly reduced.
In a third aspect the present invention provides the use of a plant growth regulating composition in the agricultural field to promote or regulate plant growth.
The present invention will be specifically described below by way of examples. The active ingredients in the invention are the effective ingredients of pesticides available in the pesticide field, and the auxiliary agents, the emulsifying agent and the C1-C6 alcohol used in the invention are the auxiliary materials acceptable in the pesticide field.
In addition, the raw materials used are commercially available unless otherwise indicated.
Examples
Example 1
A plant growth regulator, the plant growth regulator is prepared from 0.16wt% of plant growth regulating composition, 15wt% of auxiliary agent, 8wt% of emulsifying agent, 10wt% of ethanol and water to 100wt%;
The growth regulating composition is thidiazuron and 28-Gao Yuntai lactone, and the mass ratio of the thidiazuron to the 28-Gao Yuntai lactone is 15:1, a step of;
the auxiliary agent is N, N-dimethylformamide;
The mass ratio of the emulsifying agent to the auxiliary agent is 8:15; the emulsifier is a nonionic series emulsifier; the HLB value of the nonionic serial emulsifier is 12-16; the non-ionic series of emulsifiers are 602 emulsifiers;
the weight ratio of the ethanol to the emulsifier is 10:8;
The preparation method of the plant growth regulator comprises the following steps: mixing the plant growth regulating composition, auxiliary agent, emulsifier, ethanol and water under stirring, settling, and filtering to obtain the plant growth regulator.
The purchase manufacturer of the thidiazuron is Jiangsu Lv bang; the manufacturer of 28 Gao Yuntai lactone is Jiangxi Weidi.
Example 2
A plant growth regulator, the specific embodiment of which is the same as example 1 except that 600 emulsifiers are used instead of 602 emulsifiers.
Example 3
A plant growth regulator, the specific embodiment of which is the same as in example 1, except that BYK-120 emulsifier is used instead of 602 emulsifier.
Example 4
A plant growth regulator is prepared from 0.16wt% of plant growth regulating composition, 15wt% of auxiliary agent, 15wt% of emulsifying agent, 10wt% of ethanol and water to 100wt%, and the rest of the embodiments are the same as in example 1.
Example 5
A plant growth regulator, the embodiment of which is the same as in example 1, except that toluene is used instead of N, N-dimethylformamide.
Example 6
A plant growth regulator, the plant growth regulator is prepared from 0.16wt% of plant growth regulating composition, 18wt% of auxiliary agent, 8wt% of emulsifying agent, 7wt% of ethanol and water to 100wt%; the mass ratio of the emulsifying agent to the auxiliary agent is 8:18; the weight ratio of ethanol to emulsifier was 7:8, and the rest of the embodiments were the same as in example 1.
Example 7
A plant growth regulator, the plant growth regulator is prepared from 0.16wt% of plant growth regulating composition, 10wt% of auxiliary agent, 8wt% of emulsifying agent, 15wt% of ethanol and water to 100wt%; the mass ratio of the emulsifying agent to the auxiliary agent is 8:10; the weight ratio of the ethanol to the emulsifier is 15:8, and the rest of the embodiments are the same as in example 1.
Performance testing
1. Field efficacy test for regulating wheat growth
1.1 Test basis: the agricultural industry standards of the people's republic of China are pesticide registration field efficacy test quality management Specification (NY/T2885-2016), pesticide field efficacy test criterion (II) (GB/T17980.132-2004) and pesticide registration experiment quality management Specification.
1.2 Test and control agents: the plant growth regulator solution in example 1; 0.1% wt Thiodiazuron soluble (from Sichuan optical agrochemicals Co., ltd.), 0.0075% wt brassinolide aqueous (from Jinan Shibang optical agrochemicals Co., ltd.); a fresh water control was set.
1.3 Selection of crops and cultivars: the crop is winter wheat, jimai 22; the cultivation mode of crops is direct seeding.
1.4 Soil type for test: the test land features are flat, the planting condition is good, the fertility is uniform, the soil is loam, the organic matter content of the soil is 1%, and the pH value of the soil is 7.0.
1.5 Test design of the test agent the test design is shown in table 1, wherein the blank control treatment group was sprayed with the same amount of clear water, applied with the same amount of the test agent, and the same field management method as the other treatment groups.
TABLE 1
1.6 Cell area and repetition: the cell area is 20 square meters and repeated 4 times.
1.7 Methods of administration: the stem and leaf spray is applied, and the amount of the spray is 450 liters/hectare.
1.8 Times and application times: the preparation is applied 1 time in the afternoon on the 4 th month 29 th 2019, and the wheat is in the booting stage when the preparation is applied; the medicine is applied 1 time in the afternoon on the 5 th month of 2019 and the wheat is in the irrigation period when the medicine is applied.
1.9 Investigation time and times: visual inspection of wheat phytotoxicity symptoms 3d, 7d and 10d after the drug; measuring yield and quality at the time of harvesting the crops in 14 days of 6 months; the effective spike number and the solid grain number of each spike are investigated when harvest is carried out for 6 months and 14 days; thousand grain weight was measured after harvest.
1.10 Investigation method: according to GB/T17980.132-2004, 5 points are taken in each district when wheat is harvested, 1 square meter is taken in each point, the effective spike number, the solid grain number and thousand grain weight are investigated, and a 5-point average value is obtained; taking 5 points per district when wheat is harvested, measuring seed and yield by taking 2 square meters per point; the quality measurement is carried out by carrying out treatment, and 5 ears of each cell are randomly taken and mixed for each treatment, and then the quality measurement is carried out.
1.11 Method for calculating efficacy: according to the standard GB/T17980.132-2004; the yield increase calculation formula: yield increase (%) = (treatment zone yield-fresh water control yield)/fresh water control yield x 100; the logarithmic data were subjected to random block analysis of variance using SPSS19.0, and the multiple comparison method was Duncan's method.
1.12 Effects on non-target organisms: visual inspection has no effect on other non-target organisms.
1.13, 5 Points are taken in each district when wheat is harvested, each point is 2 square meters, and the seed metering and yield measurement are carried out; wheat in the sampling points is respectively harvested, threshing is carried out in a laboratory, and after the moisture content is lower than 13%, the weight of the wheat is respectively weighed to obtain the yield of 10 square meters of winter wheat in each cell, and the yield (kg/ha) is further converted.
1.14 Experimental results and analysis
As shown in table 2, pharmacodynamic analysis: after the wheat is treated by 0.32 mg/kg, 0.4 mg/kg, 0.53 mg/kg and 0.8 mg/kg of the plant growth regulator soluble active ingredient in the example 1, the effective spike number of each treatment with the medicine and the clear water control group are obviously higher than that of the clear water control group at the level of P=0.05; the number of solid particles per ear per treatment was significantly higher than that of the clear water control group at the level of p=0.05, and there was no significant difference in the number of solid particles per ear per treatment between treatments at the level of p=0.05, and the thousand-particle weight per treatment was higher than that of the clear water control group.
As shown in table 4, quality analysis was performed on each treatment, and the contents of protein, soluble sugar, starch, fat between each treatment were not significantly different from that of the fresh water control group at the p=0.05 level.
As shown in tables 2 to 4, the plant growth regulator soluble agent, 0.0075wt% brassinolide aqueous star coin in example 1 was substantially identical in terms of the effect of the yield, quality and the like.
And (3) analysis of yield measurement results: the plant growth regulator soluble solutions of example 1 were each treated with significantly higher yields than the fresh water control, with the highest yields of 0.53 mg/kg and 0.8 mg/kg, with 5.06%, 5.08%, 8.65%, 8.57% for the four treatments, respectively.
TABLE 2 Effect of plant growth regulator solutions in example 1 on wheat yield structure
Process numbering Effective spike number Number of solid grains per ear (grain) Thousand-grain weight (gram)
1 681.25a 29.55ab 40.31bc
2 689.75a 30.45a 40.40b
3 697.05a 29.60ab 41.20a
4 697.15a 29.60ab 40.47b
5 685.45a 29.20b 39.77cd
6 657.25a 30.25a 39.53d
7 625.95b 28.25c 39.57d
TABLE 3 Effect of plant growth regulator solutions in example 1 on wheat Structure
Process numbering Yield (kg/ha) Yield increase (%)
1 7472.5Bc 5.06
2 7545.0Bb 6.08
3 7727.5Aa 8.65
4 7722.5Aa 8.57
5 7487.5Bbc 5.27
6 7495.0Bbc 5.38
7 7112.5Cd -
TABLE 4 Effect of plant growth regulator solutions in example 1 on wheat quality
Process numbering Protein (%) Soluble sugar (%) Starch (%) Fat (%)
1 10.65Aa 5.44Aa 64.46Aa 1.64Aa
2 10.66Aa 5.45Aa 64.50Aa 1.62Aa
3 10.64Aa 5.42Aa 64.52Aa 1.65Aa
4 10.67Aa 5.43Aa 64.47Aa 1.63Aa
5 10.69Aa 5.40Aa 64.48Aa 1.67Aa
6 10.67Aa 5.44Aa 64.44Aa 1.65Aa
7 10.65Aa 5.41Aa 64.40Ab 1.65Aa
2. Thermal storage stability
The plant growth regulator solutions in some examples were left in an environment at 54℃for 14 days and then taken out, and observed for the occurrence of delamination and precipitation.
3. Stability in cold storage
The plant growth regulator solutions in some examples were left in an environment of-10℃for 14 days and then taken out, with the solution returning to room temperature, and then observed for delamination and precipitation.
The test results are shown in table 5:
TABLE 5
Thermal storage stability Stability in cold storage
Example 1 No delamination and no precipitation No delamination and no precipitation
Example 2 Layering and no precipitation /
Example 3 Layering and precipitation are more /
Example 4 Layering and small amount of precipitation /
Example 5 Layering and small amount of precipitation /
Example 6 / No delamination and little precipitation
Example 7 / Layering and small amount of precipitation
The foregoing examples are illustrative only and serve to explain some features of the method of the invention. The appended claims are intended to claim the broadest possible scope and the embodiments presented herein are merely illustrative of selected implementations based on combinations of all possible embodiments. It is, therefore, not the intention of the applicant that the appended claims be limited by the choice of examples illustrating the features of the invention. Some numerical ranges used in the claims also include sub-ranges within which variations in these ranges should also be construed as being covered by the appended claims where possible.

Claims (2)

1. The plant growth regulator is characterized in that the plant growth regulator is prepared from the following raw materials, by weight, 0.16% of plant growth regulating composition, 15% of auxiliary agent, 8% of emulsifying agent, 10% of ethanol and water, and the raw materials are supplemented to 100 wt%;
The growth regulating composition is thidiazuron and 28-Gao Yuntai lactone, and the mass ratio of the thidiazuron to the 28-Gao Yuntai lactone is 15:1, a step of;
the auxiliary agent is N, N-dimethylformamide;
The mass ratio of the emulsifier to the auxiliary agent is 8:15; the emulsifier is a nonionic series emulsifier; the HLB value of the nonionic serial emulsifier is 12-16; the non-ionic series of emulsifiers are 602 emulsifiers;
the weight ratio of the ethanol to the emulsifier is 10:8.
2. Use of a plant growth regulating composition according to claim 1 for regulating plant growth in the agricultural field.
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