Application of diphenyl sulfide-containing compound or composition thereof in improving stress resistance of plants

Abstract

The invention belongs to the technical field of pesticides, discloses application of a compound containing diphenyl sulfide or a composition thereof to improvement of plant stress resistance, and particularly relates to application of the compound containing diphenyl sulfide or the composition thereof or a mixture thereof to treatment of plants and plant parts to achieve improvement of plant stress resistance. The diphenyl sulfide-containing compound or the composition thereof has a remarkable improvement effect on the stress resistance of crops, and can effectively promote the stress resistance of the crops in drought and low-temperature stress after being applied. According to the invention, the diphenyl sulfide-containing compound or the composition thereof is creatively applied to improvement of crop stress resistance, and has the characteristics of quick action, remarkable effect and no toxic or side effect.

Description

Technical Field

[0001] The present invention relates to the use of compounds containing biphenyl sulfide or their compositions for improving plant stress resistance, and specifically to the use of treating plants with compounds containing biphenyl sulfide or their compositions or their mixtures to improve plant stress resistance. Background Art

[0002] During the growth and development process, plants are often affected by stress factors such as low temperature and drought. Drought is one of the important abiotic stresses that affect the growth and yield of different plants. Drought can directly affect plant growth and development, causing delays in plant height, stem thickness, number of leaves and leaf area, etc. When drought stress is severe, plants even stop growing, leading to the death of the whole plant and causing yield losses. And low temperature stress is also likely to cause weak plant growth and serious disease occurrence, restricting the normal growth of plants.

[0003] During the research on compounds containing biphenyl sulfide by the applicant, it was found that treating plants with compounds containing biphenyl sulfide or their compositions or their mixtures can reduce the impact of stresses such as drought and low temperature on plant growth, improve the ability of plants to resist stress, and reduce the damage caused by adverse factors such as drought and low temperature to plant production, having unexpected application value. Summary of the Invention

[0004] Based on the above situation, the present invention relates to the use of compounds containing biphenyl sulfide or their compositions for improving plant stress resistance, and specifically to the use of treating plants with compounds containing biphenyl sulfide or their compositions or their mixtures to improve plant stress resistance;

[0005] Furthermore, the compounds containing biphenyl sulfide include:

[0006]

[0007] Even further, the compounds containing biphenyl sulfide are:

[0008] Even further, the compounds containing biphenyl sulfide are compounds of formula I:

[0009] Furthermore, the compounds containing biphenyl sulfide or their compositions are prepared into preparation dosage forms permitted in pesticides. The preparation, in addition to containing any one of the compounds of formula I-IX, also contains agriculturally acceptable carriers and formulation adjuvants;

[0010] Even further, the adjuvants are selected from one or more of wetting agents, dispersants, emulsifiers, thickeners, disintegrants, antifreezing agents, defoaming agents, solvents, preservatives, stabilizers, synergists;

[0011] The wetting agent(s) selected from one or more of alkylbenzene sulfonates, alkylnaphthalene sulfonates, lignosulfonates, sodium dodecyl sulfate, sodium dioctyl sulfosuccinate, α-olefin sulfonates, alkylphenol polyoxyethylene ethers, castor oil polyoxyethylene ethers, alkylphenol ethoxylates, fatty alcohol ethoxylates, sodium fatty alcohol polyoxyethylene ether sulfate, silkworm excrement, sophora powder, sapindus powder, SOPA, detergent, emulsifier series 2000, and wetting penetrant F; and / or

[0012] The dispersant(s) selected from one or more of lignosulfonates, alkylnaphthalene sulfonate formaldehyde condensates, naphthalene sulfonates, triphenylvinylphenol ethoxylate phosphates, fatty alcohol ethoxylates, alkylphenol polyoxyethylene ethers, alkylphenol polyoxyethylene ether methyl ether condensate sulfates, fatty amine polyoxyethylene ethers, glycerol fatty acid ester polyoxyethylene ethers, polycarboxylates, polyacrylates, phosphates, EO-PO block copolymers, and EO-PO graft copolymers; and / or

[0013] The emulsifier(s) selected from one or more of calcium dodecylbenzenesulfonate, alkylphenol formaldehyde resin polyoxyethylene ether, phenethylphenol polyoxyethylene polyoxypropylene ether, fatty alcohol ethylene oxide-propylene oxide copolymer, styrylphenol polyoxyethylene ether, castor oil polyoxyethylene ether, and alkylphenol ether phosphate; and / or

[0014] The thickener(s) selected from one or more of xanthan gum, organic bentonite, gum arabic, sodium alginate, magnesium aluminum silicate, carboxymethyl cellulose, and white carbon black;

[0015] The disintegrant(s) selected from one or more of sodium sulfate, ammonium sulfate, aluminum chloride, sodium chloride, ammonium chloride, bentonite, glucose, sucrose, starch, cellulose, urea, sodium carbonate, sodium bicarbonate, citric acid, and tartaric acid;

[0016] The antifreeze(s) selected from one or more of alcohols, alcohol ethers, chlorinated hydrocarbons, and inorganic salts;

[0017] The defoamer(s) selected from one or more of C 10 -C 20 saturated fatty acid compounds, silicone oils, silicone compounds, C 8 -C 10 fatty alcohols; and / or

[0018] The solvent(s) selected from one or more of benzene, toluene, xylene, durene, methanol, ethanol, isopropanol, n-butanol, dimethyl sulfoxide, dimethylformamide, cyclohexanone, alkylene carbonate, diesel oil, solvent naphtha, vegetable oil, vegetable oil derivatives, and water;

[0019] The preservative selected from one or more of propionic acid, sodium propionate, sorbic acid, sodium sorbate, potassium sorbate, benzoic acid, sodium benzoate, sodium p-hydroxybenzoate, methyl p-hydroxybenzoate, Kathon and 1,2-benzisothiazolin-3-one;

[0020] The stabilizer selected from one or more of disodium hydrogen phosphate, oxalic acid, succinic acid, adipic acid, borax, 2,6-di-tert-butyl-p-cresol, triethanolamine oleate, epoxidized vegetable oil, kaolin, bentonite, attapulgite, silica white, talc powder, montmorillonite and starch; and / or

[0021] The synergist selected from synergistic phosphorus, synergistic ether, alkyl glycoside, etc.;

[0022] The carrier selected from one or more of ammonium salts, ground natural minerals, ground artificial minerals, silicates, resins, waxes, solid fertilizers, water, organic solvents, mineral oils, vegetable oils and vegetable oil derivatives;

[0023] Furthermore, in addition to any one of the compounds of formula I-IX, the active ingredient of the composition further comprises one or more other active compounds in a pesticidally effective amount.

[0024] Even further, the other active compounds selected from one or more of insecticides, acaricides, fungicides, herbicides, plant growth regulators;

[0025] Furthermore, the insecticide or acaricide is selected from alanycarb, aldicarb, aldoxycarb, allyxycarb, aminocarb, bendiocarb, benfuracarb, bufencarb, butacarb, butocarboxim, butoxycarboxim, carbaryl, carbofuran, carbosulfan, cloethocarb, dimetilan, ethiofencarb, fenobucarb, fenothiocarb, fenoxycarb, formetanate, furathiocarb, isoprocarb, metam-sodium, methiocarb, methomyl, metolcarb, oxamyl, pirimicarb, promecarb, propoxur, thiofanox, trimethacarb, XMC, xylylcarb, triazamate, acephate, azamethiphos, azinphos (-methyl, -ethyl), bromophos-ethyl, bromfenvinfos (-methyl), butathiofos, cadusafos, carbophenothion, chlorethoxyfos, chlorfenvinphos, chlormephos, coumaphos, cyanofenphos, cyanophos, chlorfenvinphos, demeton-S-methyl, demeton-S-methylsulfone, dialifos, diazinon,dichlofenthion, dichlorvos / DDVP, dicrotophos, dimethoate, dimethylvinphos, dioxabenzofos, disulfoton, EPN, ethion, ethoprophos, etrimfos, famphur, fenamiphos, fenitrothion, fensulfothion, fenthion, flupyrazofos, fonofos, formothion, fosmethilan, fosthiazate, heptenophos, iodofenphos, iprobenfos, isazofos, isofenphos, isopropyl O-salicylate, isoxathion, malathion, mecarbam, methacrifos, methamidophos, methidathion, mevinphos, monocrotophos, naled, omethoate, oxydemeton-methyl, parathion (-methyl / -ethyl), phenthoate, phorate, phosalone, phosmet, phosphamidon, phosphocarb, phoxim, pirimiphos (-methyl / -ethyl), profenofos, propaphos, propetamphos, prothiofos, prothoate, pyraclofos, pyridaphenthion, pyridathion, quinalphos, sebufossulfotep, sulprofos, tebupirimfos, temephos, terbufos, tetrachlorvinphos, thiometon, triazophos, triclorfon, vamidothion, acrinathrin, allethrin (d-cis-trans, d-trans), beta-cyfluthrin, bifenthrin, bioallethrin, bioallethrin-S-cyclopentyl-isomer, bioethanomethrin, biopermethrin, bioresmethrin, Chlovaporthrin, Cis-Cypermethrin, Cis-Resmethrin, cis-permethrin, clocythrin, cycloprothrin, cyfluthrin, cyhalothrin, cyphenothrin, eflusilanate, empenthrin (1R-isomer), esfenvalerate, etofenprox, fenfluthrin, fenpropathrin, fenpyrithrin, fenvalerate, flubrocythrinate, flucythrinate, flufenprox, flumethrin, fluvalinate, fubfenprox, gamma-cyhalothrin, imiprothrin, kadethrin, lambda-cyhalothrin, metofluthrin, permethrin (cis-, trans-), phenothrin (1R-trans isomer)prallethrin, profluthrin, protrifenbute, pyresmethrin, pyrethrin, resmethrin, RU 15525, silafluofen, tau-fluvalinate, tefluthrin, terallethrin, tetramethrin (1R isomer), tralomethrin, transfluthrin, ZXI 8901, pyrethrins (pyrethrum), b) DDT, c) oxadiazines, indoxacarb, metaflumizone, acetamiprid, AKD 1022. dinotefuran, imidaclothiz, nitenpyram, nithiazine, thiacloprid, nicotine, bensultap, cartap, spinosyns, camphechlor, chlorodane, endosulfan, gamma-HCH, HCH, heptachlor, lindane, methoxychlor, acetoprole, pyrafluprole, pyriprole, vaniliprole, emamectin amectin), ivermectin, lepimectin, milbemycin, diofenolan, epofenonane, fenoxycarb, hydroprene, kinoprene, methoprene, pyriproxifen, triprene, chromafenozide, halofenozide, methoxyfenozide, tebufenozide, bistrifluron, chlofluazuron,Diflubenzuron, Fluazuron, Flucycloxuron, Flufenoxuron, Hexaflumuron, Novaluron, Noviflumuron, Penfluron, Teflubenzuron, Buprofezin, Cyromazine, Diafenthiuron, Azocyclotin, Cyhexatin, Fenbutatin-oxide, Chlorofenapyr, Binapacyrl, Dinobuton, Dinocap, DNOC, Meptyldinocap, Fenazaquin, Fenpyroximate, Pyrimidifen, Pyridaben, Tebufenpyrad, Tolfenpyrad, or Hydramethylnon, Dicofol, Rotenone, Acequinocyl, Fluacrypyrim, Bacillus thuringiensis subspecies israelensis, Bacillus sphaericus, Bacillus thuringiensis subspecies aizawai, Bacillus thuringiensis subspecies kurstaki, Bacillus thuringiensis subspecies tenebrionis, Cry1Ab, Cry1Ac, Cry1Fa, Cry2Ab, mCry3A, Cry3Ab, Cry3Bb, Cry34 / 35Ab1, Spirodiclofen, Spiromesifen, Spirotetramat, Amitraz, Propargite, Thiocyclam hydrogen oxalate,Thiosultap-sodium, Azadirachtin, Bacillus spec., Beauveria spec., Codlemone, Metarrhizium spec., Paecilomyces spec., Thuringiensin, Verticillium spec., Aluminium phosphide, Methyl bromide, Sulfuryl fluoride, Cryolite, Flonicamide, Pymetrozine, Clofentezine, Etoxazole, Hexythiazox, Amidoflumet, Benclothiaz, Benzoximate, Bifenazate, Bromopropylate, Buprofezin, Chinomethionat, Chlorodimeform, Chlorobenzilate, Chloropicrin, Clothiazoben, Cycloprene, Cyflumetofen, Dicyclanil, Fenoxacrim, Fentrifanil, Flubenzimine, Flufenerim, Flutenzin, Gossyplure, Hydramethylnone, Japonilure, Metoxadiazone, Petroleum, Piperonyl butoxide, Potassium oleate, Pyridalyl, Sulfluramid, Tetradifon, Tetrasul, Triarathene, Verbutin, Chlorantraniliprole, Cyenopyrafen, Etoxazole, Abamectin, Emamectin benzoate, Epyfiprole, Propargite, Lufenuron, Lambda-cyhalothrin, Spirodiclofen, Benclothiaz, Pyrimidifen, Fluacrypyrim, Spirotetramat, Acemetacin, Acequinocyl, Bifenazate,One or more of milbemycin, fipronil, tebufenpyrad, flupentiofenox, acynonapyr, pyflubumide, vaniliprole, sulfiflumin, clothianidin;

[0026] Further, the fungicide is selected from, for example, benalaxyl, benalaxyl-M, metalaxyl, metalaxyl-M, oxadixyl, furalaxyl, furalaxyl-M, 4-dodecyl-2,6-dimethylmorpholine (aldimorph), dodine, guazatine, iminoctadine, dodemorph, fenpropimorph, tridemorph, fenpropidin, buthiuron, spiroxamine, for example, cyprodinil, pyrimethanil, mepanipyrim, for example, benomyl, carbendazim, thiabendazole, fuberidazole, bitertanol, bromuconazole, cyproconazole, difenoconazole, dinitroconazole, fenbuconazole, fluquinconazole, flusilazole, hexaconazole, myclobutanil, penconazole, propiconazole, prothioconazole, tebuconazole, triadimefon, epoxiconazole, flutriafol, imibenconazole, ipconazole, metconazole, simeconazole, tetraconazole, triadimenol, triticonazole, azaconazole, tricyclazole, imazalil, pefurazoate, prochloraz, triflumizole, ferbam,Sodium metabisulfite (nabam), maneb, mancozeb, metiram, thiram, zineb, propineb, polycarbamate, ziram, metam, Bordeaux mixture (bordeau mixture), copper acetate (Cupricacetate), copper oxychloride (copper oxychloride), copper sulfate basic (Copper sulfate basic), captafol, captan, folpet, iprodione, procymidone, vinclozolin, dichlofluanid, ametoctradin, azoxystrobin, coumoxystrobin, famoxadone, dimoxystrobin, kresoxim-methyl, metominostrobin, orysastrobin, picoxystrobin, trifloxystrobin, pyraclostrobin, pyrametostrobin, pyraoxystrobin, pyribencarb, benthiavalicarb, propamocarb hydrochloride, boscalid, isopyrazam, bixafen, penflufen, sedaxane, fluopyram, flunindapyr, bupirimate, carboxin, oxycarboxin, chloromethoxybenzene, chloranil, quintozene, tetrachloronitrobenzene, tolclofos-methyl, carpropamid, chlorothalonil, cyflufenamid, cymoxanil, fluopicolide, zoxamid, flutolanilIsotianil, Silthiopham, Tiadinil, Fluoxastrobin, Triazoxide, Dimethomorph, Flumetover, Flumorph, Dithianon, Edifenphos, Iprobenfos, Iprovalicarb, Valifenalate, Thifluzamide, Ethaboxam, Fenarimol, Ethirimol, Fluxapyroxad, Furametpyr, Penthiopyrad, Flubeneteram, Chlorobenetheramide, Benzovindiflupyr, Pydiflumetofen, Diethofencarb, Diclocymet, Mepronil, Fenfurame, Fenamidone, Fenhexamid, Fluazinam, Fludioxonil, Feniclonil, Fludioxonil, Flusulfamide, Triforne, Cycloheximide, Griseofulvin, Kasugamycin, Natamycin, Polyoxin, Streptomycin, Validamycin, Mildiomycin, Polyoxin, Azadirachtin, Tetramycin, Zhongshengmycin, Ningnanmycin, Tolylfluanid, Mandipropamid, Fenoxanil, Metrafenone, Fenpyrazamine, Ferimzone, Flutianil, Fosetylaluminum, Fosthiazate, PyrazophosOne or more of hymexazol, oxolinic acid, phthalide, pencycuron, proquinazid, metrafenone, proquinazid, pyroquilon, quinoxyfen, amisulbrom, such as acibenzolar-S-methyl, isoprothiolane, terrazole, octhilinone, cyazofamid, dazomet, silthiofam, thiophanate-methyl, myclozolin, anilazine, nuarimol, pyrifenox, probenazole, diclomezine;

[0027] Further, the herbicide is selected from acetochlor, acifluorfen, acifluorfen-sodium, aclonifen, alachlor, allidochlor, alloxydim, alloxydim-sodium, ametryn, amicarbazone, amidochlor, amidosulfuron, aminocyclopyrachlor, aminocyclopyrachlor-potassium, aminocyclopyrachlor-methyl, aminopyralid, amitrole, ammonium sulfamate, anilofos, asulam, atrazine, azafenidin, azimsulfuron, beflubutamid, benazolin, benazolin-ethyl, benfluralin, benfuresate, bensulfuron, bensulfuron-methyl, bensulide, bentazone, benzobicyclon, benzofenap, bicyclopyrone, bifenox, bilanafos, bilanafos-sodium, bispyribac, bispyribac-sodium, bromacil, bromobutide, bromofenoxim, bromoxynil, bromoxynil-potassium, bromoxynil-heptanoate, bromoxynil-octanoate, bromoxynil-butyrate, busoxinone, butachlor,butafenacil, butamifos, butenachlor, butralin, butroxydim, butylate, cafenstrole, carbetamide, carfentrazone, carfentrazone-ethyl, chloramben, chlorbromuron, chlorfenac, chlorfenac-sodium, chlorfenprop, chlorflurenol, chlorflurenol-methyl, chloridazon, chlorimuron, chlorimuron-ethyl, chlorophthalim, chlorotoluron, chlorthal-dimethyl, chlorsulfuron, cinidon, cinidon-ethyl, cinmethylin, cinosulfuron, clethodim, clodinafop, clodinafop-propargyl, clomazone, clomeprop, clopyralid, cloransulam, cloransulam-methyl, cumyluron, cyanamide, cyanazine, cycloate, cyclosulfamuron, cycloxydim, cyhalofop, cyhalofop-butyl, cyprazine, 2,4-D, 2,4-D-butoxyethyl ester, 2,4-D-butyl ester, 2,4-D-dimethylammonium, 2,4-D-diolamine, 2,4-D-ethyl ester, 2,4-D-2-ethylhexyl ester, 2,4-D-isobutyl ester, 2,4-D-isooctyl ester, 2,4-D-isopropylammonium, 2,4-D-potassium, 2,4-D-triisopropylammonium, 2,4-D-trolamine, 2,4-DB, 2,4-DB-butyl ester, 2,4-DB-dimethylammonium,2,4-DB-isooctyl ester, 2,4-DB-potassium, 2,4-DB-sodium, daimuron (dymron), dalapon, dazomet, n-decanol, desmedipham, detosyl-pyrazolate (DTP), dicamba, dichlobenil, dichlorprop, dichlorprop-P, diclofop, diclofop-methyl, diclofop-P-methyl, diclosulam, difenzoquat, diflufenican, diflufenzopyr, diflufenzopyr-sodium, dimefuron, dimepiperate, dimethachlor, dimethametryn, dimethenamid, dimethenamid-P, dimetrasulfuron, dinitramine, dinoterb, diphenamid, diquat, diquat-dibromid, dithiopyr, diuron, DNOC, endothal, EPTC, esprocarb, ethalfluralin, ethametsulfuron, ethametsulfuron-methyl, ethiozin, ethofumesate, ethoxyfen, ethoxyfen-ethyl, ethoxysulfuron, etobenzanid, fenoxaprop, fenoxaprop-P, fenoxaprop-ethyl, fenoxaprop-P-ethyl, fenoxasulfone, fentrazamide, flamprop,flamprop-M-isopropyl, flamprop-M-methyl, flazasulfuron, florasulam, fluazifop, fluazifop-P, fluazifop-butyl, fluazifop-P-butyl, flucarbazone, flucarbazone-sodium, flucetosulfuron, fluchloralin, flufenacet, flufenpyr, flufenpyr-ethyl, flumetsulam, flumiclorac, flumiclorac-pentyl, flumioxazin, fluometuron, fluoroglycofen, fluoroglycofen-ethyl, flupropanate, flupyrsulfuron, flupyrsulfuron-methyl-sodium, flurenol, flurenol-butyl, fluridone, flurochloridone, fluroxypyr, fluroxypyr-meptyl, flurtamone, fluthiacet, fluthiacet-methyl, fluthiamide, fomesafen, fomesafen-sodium, foramsulfuron, fosamine, glufosinate, glufosinate-ammonium, glufosinate-P, glufosinate-P-ammonium, glufosinate-P-sodium, glyphosate, glyphosate-isopropylammoniumAmmonium glyphosate, diammonium glyphosate, dimethylammonium glyphosate, potassium glyphosate, sodium glyphosate, trimethylsulfonium glyphosate, halosulfuron, halosulfuron-methyl, haloxyfop, haloxyfop-P, haloxyfop-ethoxyethyl, haloxyfop-P-ethoxyethyl, haloxyfop-methyl, haloxyfop-P-methyl, hexazinone, imazamethabenz, imazamethabenz-methyl, imazamox, imazamox-ammonium, imazapic, imazapic-ammonium, imazapyr, imazapyr-isopropylammonium, imazaquin, imazaquin-ammonium, imazethapyr, imazethapyr-ammonium, imazosulfuron, indanofan, indaziflam, iodosulfuron, iodosulfuron-methyl-sodium, ioxynil, ioxynil-sodium, ioxynil-potassium, ioxynil-octanoate, ipfencarbazone, isoproturon, isouron, isoxaben, isoxaflutole, karbutilate, ketospiradox, lactofen, lenacil, linuron, MCPA (salt, ester), MCPB (salt, ester), MCPB methyl ester, MCPB ethyl ester, MCPB sodium salt, 2-methyl-4-chlorophenoxypropionic acid (mecoprop), sodium 2-methyl-4-chlorophenoxypropionate, 2-methyl-4-chlorophenoxypropionic acid butoxyethyl ester, mecoprop-P,Mecoprop-P-butotyl, Mefenacet, Mefluidide, Mesosulfuron, Mesosulfuron-methyl, Mesotrione, Metam, Metamifop, Metamitron, Metazachlor, Metazosulfuron, Methabenzthiazuron, Methiopyrisulfuron, Methiozolin, Methyl isothiocyanate, Metobromuron, Metolachlor, S-Metolachlor, Metosulam, Metoxuron, Metribuzin, Metsulfuron, Metsulfuron-methyl, Molinate, Monolinuron, Monosulfuron, Monosulfuron-ester, Napropamide, Neburon, Nicosulfuron, Nonanoic acid, Norflurazon, Oleic acid (fatty acid), Orbencarb, Orthosulfamuron, Oryzalin, Oxadiargyl, Oxadiazon, Oxasulfuron, Oxaziclomefon, Oxyfluorfen, Paraquat, Paraquat dichloride, Pebulate, Pendimethalin, Penoxsulam, Pentachlorophenol, Pentoxazone, Pethoxamid, Petroleum oils, Phenmedipham, Phenmedipham-ethyl, Picloram, Picolinafen, PinoxadenPiperophos, Pretilachlor, Primisulfuron, Primisulfuron-methyl, Prodiamine, Prifluraline, Profoxydim, Prometon, Prometryn, Propachlor, Propanil, Propaquizafop, Propazine, Propham, Propisochlor, Propoxycarbazone, Propoxycarbazone-sodium, Propyrisulfuron, Propyzamide, Prosulfocarb, Prosulfuron, Pyraclonil, Pyraflufen, Pyraflufen-ethyl, Pyrasulfotole, Pyrazolynate, Pyrazolate, Pyrazosulfuron, Pyrazosulfuron-ethyl, Pyrazoxyfen, Pyribambenz, Pyribambenz-isopropyl, Pyribambenz-propyl, Pyribenzoxim, Pyributicarb, Pyridafol, Pyridate, Pyriftalid, Pyriminobac, Pyriminobac-methyl, Pyrimisulfan, Pyrithiobac, Pyrithiobac-sodium, Pyroxasulfone, Pyroxsulam, Quinclorac, Quinmerac, Quinoclamine, Quizalofop, Quizalofop-ethyl, Quizalofop-P, Quizalofop-P-ethyl, Quizalofop-P-tefurylOne or more of rimsulfuron, saflufenacil, sethoxydim, siduron, simazine, simetryn, sulcotrione, sulfentrazone, sulfometuron, sulfometuron-methyl, sulfosate, sulfosulfuron, tebuthiuron, tefuryltrione, tembotrione, tepraloxydim, terbacil, terbucarb, terbumeton, terbuthylazin, terbutryn, thenylchlor, thiazopyr, thiencarbazone, thiencarbazone-methyl, thifensulfuron, thifensulfuron-methyl, thiobencarb, topramezone, tralkoxydim, triafamone, triallate, triasulfuron, triaziflam, tribenuron, tribenuron-methyl, triclopyr, trietazine, trifloxysulfuron, trifloxysulfuron-sodium, trifluralin, triflusulfuron, triflusulfuron-methyl, tritosulfuron, urea sulfate, vernolate;

[0028] Further, the plant growth regulator is selected from one or more of: abscisic acid, acibenzolar, acibenzolar-S-methyl, 5-aminolevulinic acid, ancymidol, 6-benzylaminopurine, brassinolide, catechin, cloprop, cyclanilide, 3-(cycloprop-1-enyl)propanoic acid, 3-(cycloprop-1-enyl)propanoic acid, sodium salt, daminozide, dazomet, n-decanol, dikegulac, dikegulac-sodium, endothal, flumetralin, flurenol, flurenol-butyl, flurprimidol, forchlorfenuron, gibberellic acid, inabenfide, indole-3-acetic acid (IAA), 4-indole-3-ylbutyric acid, isoprothiolane, jasmonic acid, methyl jasmonate, kinetin, maleic hydrazide, mepiquat chloride, 1-methylcyclopropene, 2-(1-naphthyl)acetamide, 1-naphthaleneacetic acid, 2-naphthoxyacetic acid, nitrophenol mixture, 4-oxo-4-[(2-phenylethyl)amino]butyric acid, paclobutrazol, N-phthalylglycine, probenazole, prohexadione, calcium prohexadione, prohydrojasmone, propham, salicylic acid, strigolacton, tecnazene, thidiazuron, triacontanol, trinexapac, tsitodef, uniconazole, uniconazole-P;

[0029] Further, the plant living environment is under stress conditions, and the stress conditions are low temperature with low light and drought;

[0030] Further, the plant is a food crop, cash crop, industrial raw material crop, forage crop or medicinal crop;

[0031] Still further, the plant is a cereal crop, vegetable, fruit tree or flower.

[0032] Further, the plant is citrus, strawberry or pepper.

[0033] Further, the stress resistance judgment criteria are plant growth indexes, plant physiological indexes and plant yield indexes.

[0034] Further, the plant growth indexes are the number of primary new roots, the length of the longest lateral root, root activity, plant height, stem diameter, dry weight of the whole plant, root-shoot ratio, leaf area, relative water content of leaves, and leaf water potential;

[0035] The plant physiological indexes are chlorophyll content and peroxidase content;

[0036] The plant yield indexes are single fruit weight and yield per plant.

[0037] The beneficial effects of the present invention are as follows:

[0038] 1) By treating plants in a stress environment, the ability of plants to resist stress can be improved, and the damage caused by adverse factors such as drought and low temperature to plant production can be reduced, which has unexpected application value;

[0039] 2) It is safe for crops, and has the characteristics of rapid action, significant effect, and no toxic and side effects. Specific Embodiments

[0040] To make the technical solutions, objectives, and advantages of the present invention clearer and more understandable, the present invention is described with the following specific embodiments, but the present invention can be implemented in various forms and should not be limited by the embodiments described herein.

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0042] The following compounds were subjected to relevant test determinations:

[0043]

[0044]

[0045] Example 1: Effects of Biphenyl Sulfide Compounds on the Growth and Drought Resistance of Citrus Seedlings under Drought Stress

[0046] Test method: The test was carried out in a greenhouse using the potting method. Citrus seedling plants about 2 months old were transplanted into ceramic pots with a diameter of 35 cm and a height of 40 cm. The soil in the pots was nutrient soil and sand (volume ratio 2:1). Selecting citrus seedlings with good growth and consistent growth vigor, they were transplanted into ceramic pots, with 1 plant planted in each pot. When the citrus seedlings grew well, a drought stress test was carried out.

[0047] Chemical treatment: Before the drought stress treatment, dilute the above compounds to the concentrations set in the experiment. Using the conventional spraying method, spray the experimental chemicals on the whole citrus plants, with the application rate being such that the leaves are evenly covered with the chemical and there is a slight dripping of droplets.

[0048] Drought stress treatment: Set severe drought stress treatments (SS0 - SS9) and 1 normal irrigation control (CK). Each treatment is replicated 4 times, and 5 plants are selected for each treatment.

[0049] Table 1 Experimental treatment settings

[0050] Treatment Applying agent Agent concentration (mg / L) Treatment conditions SS1 Compound of formula Ⅰ 15 Severe drought stress treatment SS2 Compound of formula Ⅱ 15 Severe drought stress treatment SS3 Compound of formula Ⅲ 15 Severe drought stress treatment SS4 Compound of formula Ⅳ 15 Severe drought stress treatment SS5 Compound of formula Ⅴ 15 Severe drought stress treatment SS6 Compound of formula Ⅵ 15 Severe drought stress treatment SS7 Compound of formula Ⅶ 15 Severe drought stress treatment SS8 Compound of formula Ⅷ 15 Severe drought stress treatment SS9 Compound of formula Ⅸ 15 Severe drought stress treatment SS0 / Spraying equal amount of clear water Severe drought stress treatment CK / Spraying equal amount of clear water Normal irrigation treatment

[0051] Note: For the severe drought stress, the soil volumetric water content is maintained at 9% - 13%; for the control, i.e., the normal irrigation treatment, the soil volumetric water content is maintained at 20% - 30%

[0052] Sampling: Measure the following relevant indicators on the 60th day of the drought stress.

[0053] 1. Determination of seedling growth indicators:

[0054] Plant height measurement: Use a tape measure to measure the length from the surface of the substrate to the top of the plant.

[0055] Biomass measurement: First, wash and dry the plants, then blanch them in an oven at 105°C for 30 min, and then dry them at 65°C to a constant weight. Weigh the dry weight of the above-ground part, the dry weight of the underground part, and calculate the total dry weight of the plant.

[0056] Root - shoot ratio:

[0057]

[0058] 2. Determination of seedling root indicators:

[0059] Number of primary new roots: Use tweezers to count the number of new roots with a length greater than 1 cm and white in color, which is the number of primary new roots.

[0060] Length of the longest lateral root: Use a ruler to measure the length from the base of the root to the longest part of the root.

[0061] Root activity: Use the triphenyl tetrazolium chloride (TTC) reduction method to determine the root activity.

[0062] 3. Determination of seedling leaf indicators:

[0063] Leaf area: Use the coordinate paper method to measure the first leaf from top to bottom.

[0064] Relative water content:

[0065]

[0066] Leaf water potential: The measurement time was from 9:00 to 14:00. The WP4C Dew Point Potentia Meter was used to measure the leaf water potential. Calibration was carried out before measurement. Then, the first fully expanded leaf with consistent growth status and the same light-receiving direction was randomly selected, and the middle part was taken for measurement.

[0067] The test results are shown in the following table:

[0068] Table 2 Effects of diphenyl sulfide compounds on the root development of citrus seedlings

[0069] Treatment Number of primary new roots (pieces) Length of the longest lateral root (cm) <![CDATA[Root activity (mg TTF·g -1 ·h -1 )]]> SS1 59.30b 23.08b 0.59ab SS2 58.75b 22.26c 0.56b SS3 51.00c 20.46d 0.48c SS4 50.15c 19.82d 0.45de SS5 57.25b 22.50bc 0.57b SS6 45.65d 19.79d 0.43e SS7 44.20d 19.70de 0.42e SS8 44.10d 18.97e 0.47cd SS9 58.05b 22.17c 0.56b SS0 33.15e 18.07f 0.19f CK 65.85a 25.28a 0.62a

[0070] Note: The data in the table are the averages of 4 repeated measurements. The lowercase letters (a, b, c...) in the table indicate the differences in each index under different treatments at the 0.05 level.

[0071] It can be analyzed from Table 2 that spraying diphenyl sulfide compounds can effectively increase the number of primary new roots, the length of the longest lateral root, and the root activity of citrus seedlings, but there are differences in the effects of different treatment groups. Applying diphenyl sulfide compounds can significantly promote the regeneration and elongation of the roots of citrus seedlings, expand the root volume, thereby increasing the absorption and transportation capacity of the roots and improving drought resistance; drought will significantly reduce the root activity of citrus seedlings, while applying diphenyl sulfide compounds can significantly reduce the degree of decline in root activity, effectively alleviating the negative effect of drought on the root activity of citrus seedlings to resist drought.

[0072] Table 3 Effects of diphenyl sulfide compounds on the growth of citrus seedlings

[0073] Treatment Plant height (cm) Dry weight of whole plant (g) Root-shoot ratio (%) SS1 73.22b 18.14b 86.78b SS2 72.25b 18.02b 86.25b SS3 68.58cd 17.11c 82.05c SS4 68.04d 16.83cd 80.82d SS5 71.43bc 17.79b 85.88b SS6 65.17e 16.72cd 78.15e SS7 62.30e 16.66cd 78.14e SS8 63.45e 16.38d 77.82e SS9 72.41b 17.94b 85.98b SS0 45.11f 8.39e 67.37f CK 77.33a 20.60a 92.09a

[0074] Note: The data in the table are the averages of 4 repeated measurements. The lowercase letters (a, b, c...) in the table indicate the differences in each index under different treatments at the 0.05 level.

[0075] The results show (Table 3) that drought stress has a greater impact on the plant seedling height, dry weight, and root-shoot ratio. Applying diphenyl sulfide compounds effectively promoted the growth of citrus seedlings under drought stress.

[0076] Table 4 Effects of diphenyl sulfide compounds on the leaf growth and water parameters of citrus seedlings

[0077] Treatment <![CDATA[Leaf area (cm 2 )]]> Relative water content of leaves (%) Leaf water potential (Mpa) SS1 8.23b 86.72b -2.19b SS2 8.12bc 86.13bc -2.21b SS3 7.87d 81.37d -2.48c SS4 7.64e 80.28e -2.61d SS5 8.07c 85.40c -2.26b SS6 7.57e 78.04f -2.68de SS7 7.34f 76.92g -2.71de SS8 7.32f 76.23g -2.78e SS9 8.13bc 85.83bc -2.23b SS0 4.36g 66.45h -3.55f CK 8.50a 90.79a -1.97a

[0078] Note: The data in the table are the averages of 4 repeated measurements. The lowercase letters (a, b, c...) in the table indicate the differences in each index under different treatments at the 0.05 level.

[0079] The test results showed (see Table 4) that the growth and development of leaves were inhibited by water stress, and the application of compounds containing biphenyl sulfide effectively alleviated the impact of drought stress. Relative leaf water content and leaf water potential are direct indicators reflecting the degree of drought stress on plants. The application of compounds containing biphenyl sulfide can significantly increase the relative leaf water content and water potential, accelerate the transport of nutrients and metabolites in plants, promote plant life activities, and thus enhance drought resistance.

[0080] Example 2: Effects of Compounds Containing Biphenyl Sulfide on the Growth of Strawberries under Low Temperature and Low Light Stress Conditions

[0081] Test Site: The test was conducted in a solar greenhouse in Jimo, Qingdao. Strawberries were cultivated in a soil cultivation method with north-south ridges. The tested variety was Hongyan. The test period was from September 2023 to March 2024 (this time period is the stage when strawberries are affected by low temperature and low light weather).

[0082] Test Design: A total of 10 treatments were set up in the test, including 9 chemical treatments and 1 blank control (spraying an equal amount of clear water at the same time as the above chemical treatments). Each treatment was repeated 4 times and arranged in a randomized block design. Strawberries in each treatment were managed according to conventional farming practices such as regular fertilization.

[0083] Table 5 Test Treatment Settings

[0084] Treatment Applying agent Agent concentration (mg / L) SS1 Compound of formula Ⅰ 10 SS2 Compound of formula Ⅱ 10 SS3 Compound of formula Ⅲ 10 SS4 Compound of formula Ⅳ 10 SS5 Compound of formula Ⅴ 10 SS6 Compound of formula Ⅵ 10 SS7 Compound of formula Ⅶ 10 SS8 Compound of formula Ⅷ 10 SS9 Compound of formula Ⅸ 10 CK / Spraying equal amount of clear water

[0085] Chemical Treatment: The chemicals for each treatment were sprayed 30 days after the strawberry seedlings were planted. The second spraying was carried out after a 15-day interval, with a total of 2 sprayings. Each time, 25 L was sprayed per 667 m 2 25 L was sprayed.

[0086] Measurement Indicators and Measurement Methods:

[0087] Plant Height: On October 10, a ruler was used to measure the natural height from the surface of the seedling substrate to most of the leaves at the seedling stage. Each treatment had 4 replicates, and 5 strawberry seedlings were surveyed for each replicate.

[0088] Stem Thickness: On October 10, a vernier caliper was used to measure the diameter of the base of the strawberry stem at the seedling stage. Each treatment had 4 replicates, and 5 strawberry seedlings were surveyed for each replicate.

[0089] Leaf Area: At the seedling stage, the second fully expanded functional leaf was taken, and the length and width of the central leaflet of the compound leaf were measured with a ruler. Each treatment had 4 replicates, and 5 strawberry seedlings were surveyed for each replicate.

[0090] Table 6 Effects of Compounds Containing Biphenyl Sulfide on the Growth of Strawberries under Low Temperature and Low Light Stress Conditions

[0091] Treatment Plant height (cm) Stem diameter (mm) <![CDATA[Leaf area (cm 2 )]]> SS1 18.51a 12.81a 18.72a SS2 18.23ab 12.73ab 18.70a SS3 17.15c 12.45c 18.17c SS4 16.91cd 12.41c 17.99d SS5 17.95b 12.62b 18.41b SS6 16.74de 12.22d 17.94de SS7 16.51e 11.93e 17.88de SS8 16.47e 11.90e 17.82e SS9 18.13b 12.72ab 18.66a Control (CK) 15.16f 10.04f 16.27f

[0092] Note: The data in the table are the average values of 4 repeated measurements. The lowercase letters (a, b, c...) in the table indicate the differences in each index under different treatments at the 0.05 level.

[0093] The test results showed (see Table 6) that the application of compounds containing biphenyl sulfide effectively alleviated the effects of low temperature stress on strawberries. The application of compounds containing biphenyl sulfide could significantly increase the plant height, stem diameter and leaf area of strawberries, improve plant photosynthesis and nutrient transport to resist low temperature stress.

[0094] Example 3: Effects of Compounds Containing Biphenyl Sulfide on the Growth, Physiological Characteristics and Yield of Pepper during the Flowering and Fruit-bearing Period under Drought Stress

[0095] Experimental design: The experiment was set with 6 treatments (see the following table for details), namely normal watering (control, CK), 25% of the normal watering amount (drought stress, SS0, SS1, SS2, SS5, SS9). There were 20 pots for each treatment. During the seedling slowdown period of pepper, normal water supply was provided, and drought stress treatment was carried out at the budding stage of pepper, and the continuous drought condition was maintained until the pepper fruits matured. During the whole growth period of pepper, sunlight greenhouses were used to block rainwater. Except for water, other field management measures were kept consistent.

[0096] Table 7 Experimental Treatment Settings

[0097] Treatment Test agent Agent concentration (mg / L) SS1 Compound of formula Ⅰ 10 SS2 Compound of formula Ⅱ 10 SS5 Compound of formula Ⅴ 10 SS9 Compound of formula Ⅸ 10 SS0 / Spraying equal amount of clear water Normal watering (CK) / Spraying equal amount of clear water

[0098] Experimental method: Conventional plug seedling raising was adopted, and after emergence, when the plant height reached 10 cm, it was transplanted into pots. The pot diameter was 26 cm and the height was 22 cm, and 1 plant was planted in each pot. The above experimental agents were sprayed once at the flowering and fruit-bearing period of pepper according to the experimental design concentration. The conventional spraying method was used to spray the whole pepper plant until the leaves were wet but not dripping.

[0099] Experimental measurement method:

[0100] 1. Growth index measurement: For each treatment, 5 plants with consistent growth vigor were selected for the measurement of plant height, stem diameter and leaf area.

[0101] 2. Physiological index: The chlorophyll content was measured by the ethanol-acetone mixed solution extraction method, and the peroxidase (POD) activity was measured using a kit from Suzhou Keming Biotechnology Co., Ltd.

[0102] 3. Yield measurement: The peppers were picked 5 times during the whole growth period, the single-plant yield of peppers was measured, and some fruits were selected for the measurement of single-fruit weight.

[0103] Table 8 Effects of Compounds Containing Biphenyl Sulfide on the Growth, Physiological Characteristics and Yield of Pepper during the Flowering and Fruit-bearing Period under Drought Stress

[0104]

[0105] Note: The data in the table are the average values measured 4 times repeatedly. The lowercase letters (a, b, c...) in the table indicate the differences in each index under different treatments at the 0.05 level.

[0106] The test results show (see Table 8) that drought stress significantly inhibits the growth and development of peppers. The heavier the degree of drought stress, the more obvious the dwarfing of peppers, the thinner the stems, the smaller the leaf area, and the decrease in the chlorophyll content of pepper leaves. In order to reduce or eliminate the damage caused by reactive oxygen species to the plant body, the activity of peroxidase (POD) will increase to scavenge the reactive oxygen species produced in the plant body, reduce the impact of drought stress on plant growth, and improve the plant's ability to resist drought stress. After applying the biphenyl sulfide compound, the effects of drought on various growth indexes, physiological characteristic indexes and yield indexes of peppers can be reduced to varying degrees.

[0107] Although the present application has been described in detail with reference to specific embodiments by way of examples, the disclosure of the present application may be in various modified and alternative forms. However, it should be understood that the disclosure of the present application is not limited to the specific forms disclosed. On the contrary, the disclosure of the present application covers all modifications, equivalents and alternative forms within the scope of the disclosure of the present application, and the scope of the present application is defined by the appended claims and their legal equivalents.

Claims

1. Use of a biphenyl sulfide compound or a composition thereof for improving plant stress resistance, characterized in that: The biphenyl sulfide compounds include:

2. The use according to claim 1, characterized in that The biphenyl sulfide compound is:

3. The use according to claim 2, characterized in that: The biphenyl sulfide compound is a compound of formula I:

4. The use according to claim 1, characterized in that The biphenyl sulfide-containing compound or its composition is prepared into a pesticide-permitted formulation. In addition to containing any one of the compounds of formula I-IX, the formulation also contains pesticide-permitted carriers and formulation adjuvants.

5. The use according to claim 1, characterized in that: The active ingredients of the composition include, in addition to any one of the compounds of formula I-IX, one or more other active compounds in an effective amount for killing pests.

6. The use according to claim 1, characterized in that: This is achieved by treating plant parts to increase plant stress resistance.

7. The use according to claim 7, characterized in that The plants are food crops, cash crops, industrial raw material crops, feed crops or medicinal crops; Preferably, the plants are cereal crops, vegetables, fruit trees, and flowers; Preferably, the plants are citrus, strawberry, and pepper.

8. The use according to claim 7, characterized in that The plant survival environment is adverse conditions, and the adverse conditions are low temperature, little light and drought.

9. The use according to any one of claims 1 to 9, characterized in that The stress resistance judgment criteria are plant growth index, plant physiological index, and plant yield index; The plant growth indicators are the number of primary new roots, the longest lateral root length, root activity, plant height, stem diameter, whole plant dry weight, root-to-crown ratio, leaf area, leaf relative water content, and leaf water potential; The plant physiological indicators are chlorophyll content and peroxidase content; The plant yield indicators are single fruit weight and single plant yield.

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