Use of biphenyl sulfide compounds or compositions thereof for increasing stress tolerance in plants

Abstract

The application belongs to the technical field of pesticides, and discloses a use of a biphenyl sulfide compound or a composition thereof for improving plant stress resistance, and particularly relates to a use of a biphenyl sulfide compound or a composition thereof or a mixture thereof for treating plants or plant parts to improve plant stress resistance. The biphenyl sulfide compound or the composition thereof has a remarkable effect on improving crop stress resistance, and can effectively promote the stress resistance of crops in drought and low-temperature stress after application. The biphenyl sulfide compound or the composition thereof is creatively applied to improving crop stress resistance, and has the characteristics of rapid action, remarkable effect and no toxic side effects.

Description

Technical Field

[0001] This invention relates to the use of diphenyl sulfide compounds or compositions thereof for improving plant stress resistance, and more particularly to the use of treating plants with diphenyl sulfide compounds or compositions thereof or mixtures thereof to improve plant stress resistance. Background Technology

[0002] Plants are frequently affected by adverse factors such as low temperature and drought during their growth and development. Drought is one of the important abiotic stresses affecting the growth and yield of various plants. Drought directly affects plant growth and development, causing slowed growth in plant height, stem diameter, number of leaves, and leaf area. In severe cases of drought stress, plants may even stop growing, leading to the death of the entire plant and resulting in yield loss. Low temperature stress can also easily cause weak plant growth, severe disease occurrence, and limit normal plant growth.

[0003] The applicant discovered in its research on compounds containing diphenyl sulfides that treatment of plants with compounds containing diphenyl sulfides or their combinations or mixtures can reduce the impact of stresses such as drought and low temperature on plant growth, improve the plant's ability to resist stress, and reduce the damage to plant production caused by adverse factors such as drought and low temperature, thus having unexpected application value. Summary of the Invention

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

[0005] Furthermore, the biphenyl sulfide compounds include:

[0006]

[0007] Furthermore, the biphenyl sulfide compounds are:

[0008] Furthermore, the biphenyl sulfide compounds are compounds of formula I:

[0009] Furthermore, the compounds containing biphenyl sulfide or their compositions are prepared into pesticide formulations, wherein the formulations, in addition to containing any one of the compounds of formulas I-IX, also include pesticide-permissible carriers and formulation adjuvants.

[0010] Furthermore, the additives are selected from one or more of the following: wetting agents, dispersants, emulsifiers, thickeners, disintegrants, antifreeze agents, defoamers, solvents, preservatives, stabilizers, and synergists.

[0011] The wetting agent is selected from one or more of the following: alkylbenzene sulfonate, alkylnaphthalene sulfonate, lignin sulfonate, sodium dodecyl sulfate, sodium dioctyl succinate sulfonate, α-olefin sulfonate, alkylphenol polyoxyethylene ether, castor oil polyoxyethylene ether, alkylphenol ethoxylate, fatty alcohol ethoxylate, sodium fatty alcohol polyoxyethylene ether sulfate, silkworm excrement, soapberry powder, soapberry powder, SOPA, detergent, emulsifier 2000 series, and wetting and penetrating agent F; and / or

[0012] The dispersant is selected from one or more of the following: lignin sulfonate, alkyl naphthalene sulfonate formaldehyde condensate, naphthalene sulfonate, tristyrylphenol ethoxylate phosphate, fatty alcohol ethoxylate, alkylphenol polyoxyethylene ether, alkylphenol polyoxyethylene ether methyl ether condensate sulfate, fatty amine polyoxyethylene ether, glycerol fatty acid ester polyoxyethylene ether, polycarboxylates, polyacrylic acids, phosphates, EO-PO block copolymers, and EO-PO graft copolymers; and / or

[0013] The emulsifier is selected from one or more of the following: calcium dodecylbenzenesulfonate, alkylphenol formaldehyde resin polyoxyethylene ether, phenethylphenol polyoxyethylene polyoxypropylene ether, fatty alcohol ethylene oxide-propylene oxide copolymer, styrene-phenol polyoxyethylene ether, castor oil polyoxyethylene ether, and alkylphenol ether phosphate; and / or

[0014] The thickener is selected from one or more of xanthan gum, organobentonite, gum arabic, sodium alginate, magnesium aluminum silicate, carboxymethyl cellulose, and silica.

[0015] The disintegrant is 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 is selected from one or more of alcohols, alcohol ethers, chlorinated hydrocarbons, and inorganic salts;

[0017] The defoamer mentioned is selected from C 10 -C 20 Saturated fatty acid compounds, silicone oil, silicone compounds, C8-C 10 One or more of the fatty alcohols; and / or

[0018] The solvent is selected from one or more of benzene, toluene, xylene, mesitylene, methanol, ethanol, isopropanol, n-butanol, dimethyl sulfoxide, dimethylformamide, cyclohexanone, hydrocarbon carbonate, diesel, solvent oil, vegetable oil, vegetable oil derivatives, and water;

[0019] The preservative is 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 is selected from one or more of the following: 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, talc, montmorillonite, and starch; and / or

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

[0022] The carrier is selected from one or more of the following: 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, the active ingredient of the composition, in addition to comprising any one of the compounds of formulas I-IX, also includes an effective amount of one or more other active compounds for killing pests.

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

[0025] Furthermore, the insecticide or acaricide mentioned is selected from alanycarb, aldicarb, aldoxycarb, allyxycarb, aminocarb, bendiocarb, benfuracarb, bufencarb, butacarb, butocarboxim, butoxycarboxim, carbaryl, carbofuran, and carbosulfan. Cloethocarb, Dimetilan, Ethiofencarb, Fenobucarb, Fenothiocarb, Fenooxycarb, Formetate, Furathiocarb, Isoprocarb, Metam-Sodium, Methiocarb, Methomyl, Metolcarb, Oxamyl, Pirimicarb, Mancozeb 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, diazinonDichlorvos / DDVP, dicrotophos, dimethoate, dimethylvinphos, dioxabenzofos, disulfoton, EPN, ethion, ethoprophos, etrimfos, famphur, fenamiphos, fenitrothion, fensulfothio n), fenthion, flupyrazofos, fonofos, formothion, fosmethilan, fosthiazate, heptenophos, iodofenphos, iprobenfos, isazofos, isofenphos, isopropyl O-salicylate, isoxathion, malathion, pymetrozine Mecarbam, methicrifos, methamidophos, methidathion, mevinphos, monocrotophos, naled, omethoate, oxydemeton-methyl, parathion (-methyl / -ethyl), phenthoate, phorate, phosalone, phosmet, phosphorus Phosphamidon, phosphocarb, phoxim, pyrimiphos (-methyl / -ethyl), profenofos, propaphos, propetamphos, prothiofos, prothoate, pyraclofos, pyridaphenthion, pyridathion, quinalphos, sebufosThe following pesticides are used to control pyrethroids: sulfotep, sulprofos, tebupirimfos, temephos, terbufos, tetrachlorvinphos, thiometon, triazophos, trichlorfon, vamidothion, acridine lactate, d-cis-trans, d-trans, beta-cyfluthrin, and bifenthrin. Bioallethrin, bioallethrin-S-cyclopentyl isomer, bioethanomethrin, biopermethrin, bioresmethrin, chlovaporthrin, cis-cypermethrin, cis-resmethrin, cis-permethrin, clocythrin, and pyrethrum. Esters (cycloprothrin), cyfluthrin, cyhalothrin, cyphenothrin, eflusilanate, empenthrin (1R-isomer), esfenvalerate, etofenprox, fenfluthrin, fenpropathrin, fenpyrithrin, fenvalerate, flubrocythrinat e) Flucythrinate, flufenprox, flumethrin, fluvalinate, fubfenprox, gamma-cyhalothrin, imiprothrin, kadethrin, lambda-cyhalothrin, metofluthrin, permethrin (cis-, trans-), phenoxy ...Prallethrin, profluthrin, protrifenbute, pyresmethrin, pyrethrin, resmethrin, RU 15525, silafluofen, tau-fluvalinate, tefluthrin, terallethrin, pyrethrin (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, Chlordane, Endosulfan, γ-HCH, HCH, Heptachlor, Lindane, Methoxychlor, Acetonitrile, Pyrafluprole, Pyriprole, Vaniliprole, Emectin amectin, ivermectin, lepimectin, milkemycin, diofenolan, epofenonane, fenoxycarb, hydroprene, kinoprene, methoprene, pyriproxifen, triprene, chromafenozide, halofenozide, methoxyfenozide, tebufenozide, bistrifluron, chlofluazuronDiflubenzuron, fluazuron, flucycloxuron, flufenoxuron, hexaflumuron, novaluron, noviflumuron, penfluron, teflubenzuron, buprofezin, cyromazine, diafenthiuron, azocyclotin, cyhexatin, fenbutatin-oxide, chlorofenapyr, bina pacyrl, dinobuton, dinocap, DNOC, meptyldinocap, fenazaquin, fenpyroximate, pyrimidifen, pyridaben, tebufenpyrad, tolfenpyrad, or hydramethylnon, dicofol, rotenone, acequinocyl, fluacrypyrim, Bacillus thuringiensis (Israel subsp. thuringiensis) Bacillus 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., aluminum phosphide, methyl bromide, sulfuryl fluoride Fluoride, cryolite, flonicamid, pymetrozine, clofentezine, etoxazole, hexythiazox, amidoflumet, benclothiaz, benzoximate, bifenazate, bromopropylate, buprofezin, chinomethionat, chlorodimeform, chlorobenzila te), chloropicrin, clothiazoben, cycloprene, cyflumetofen, dicyclanil, fenoxacrim, fentrifanil, flubenzimine, flufenerim, flutenzin, gossyplure, hydramethylnone, japonicilure, metoxadiazone, petroleum, piperonylbutoxide, potassium oleate oleate), pyridalyl, sulfluramid, tetradradifon, tetrasul, triarathene, verbutin, flufenoxuron, pyridaben, etoxazole, abamectin, emamectin benzoate, etoxazole, propargite, lufenuron, lambda-cyhalothrin, spirodiclofen, trifluralin, pyrimethanil, flufenoxuron, spirodiclofen, acetamiprid, fenpyroximate, benzylfenozide,One or more of the following: micranthin, fipronil, pyridaben, flupentiofenox, acynonapyr, pyflubumide, vaniliprole, sulfiflumin, and thiamethoxam;

[0026] Furthermore, the bactericide is selected from the following: benalaxyl, benalaxyl-M, metalaxyl, metalaxyl-M, oxadixyl, furaxyl, furaxyl-M, 4-dodecyl-2,6-dimethylmorpholine, dodine, guazatine, iminoctadine, dodemorph, fenpropimorph, tridemorpholine. demorph, fenpropidin, buthiuron, spiroxamine, cyprodinil, pyrimethanil, mepanipyrim, benomyl, carbendazim, thiabendazole, fuberidazole, bitertanol, bromuconazole, cyproconazole, difenoconazole (d ifenoconazole, dinitroconazole, fenbuconazole, fluquinconazole, flusilazole, hexaconazole, myclobutanil, penconazole, propiconazole, prothioconazole, tebuconazole, triadimefon, epoxiconazole, fluconazole Triafol, imibenconazole, ipconazole, metconazole, simeconazole, tetraconazole, triadimenol, triticonazole, azaconazole, tricyclazole, imazalil, pefurazoate, prochloraz, triflumizole, ferbamSodium mancozeb, mancozeb, metiram, thiram, zineb, propineb, polycarbamate, ziram, metam, Bordeaux mixture, copper acetate, copper oxychloride, basic copper sulfate Basic, Captafol, Captan, Folpet, Iprodione, Procymidone, Vinclozolin, Dichlofluanid, Ametoctradin, Azoxystrobin, Coumoxystrobin, Famoxadone, Dimoxystrobin, Kresoximmethyl, Metominostrobin, Orysastrobin, Picoxystrobin, Trifloxystrobin, Pyracostrobin, Pyrametostrobin, Pyraoxystrobin, Pyribencarb, Benthiavalicarb, Propamocarb Hydrochloride, boscalid, isopyrazam, bixafen, penflufen, sedaxane, fluopyram, flunindapyr, bupirimate, carboxin, oxycarboxin, chloromethoxybenzene, chloronitrobenzene, tetrachloronitrobenzene, tolclofosmethyl, carpropamid, chlorothalonil, cyflufenamid, cymoxanil, fluopyram, zoxamid, flutolanilIsotianil, silthiopham, tiadinil, fluoxastrobin, triazoxide, dimethomorph, flumetover, flumorph, dithianon, edifenphos, iprobenfos, iprovalicarb, valifenalate, thifluzamide, ethab oxam), fenarimol, ethirimol, fluxapyroxad, furametpyr, penthiopyrad, flubeneteram, benzovindiflupyr, pydiflumetofen, diethofencarb, diclocymet, mepronil, fenfurame, fenamid One), fenhexamid, fluazinam, fludioxonil, feniclonil, fludioxonil, flusulfamide, triforne, cycloheximide, griseofulvin, kasugamycin, natamycin, polyoxin, streptomycin, validamycin, midomycin diomycin, polyoxin, azadirachtin, tetramycin, kasugamycin, ningnanmycin, tolylfluanid, mandipropamid, fenoxanil, metrafenone, fenpyrazamine, ferimzone, flutianil, fosetylaluminum, fosthiazate, pyrazophosOne or more of the following fungicides: hymexazol, oxolini cacid, phthalide, pencycuron, proquinazid, metrafenone, pyroquilon, quinoxyfen, amisulbrom, acibenzolar Smethyl, isoprothiolane, terbufos, octothiazolinone, cyazofamid, dazomet, silthiofam, thiophanate-methyl, myclozolin, anilazine, nuarimol, pyrifenox, probenazole, and diclomezine;

[0027] Furthermore, the herbicide is selected from acetochlor, acifluorfen, acifluorfen-sodium, aclonifen, alachlor, allidochlor, alloxydim, alloxydim-sodium, ametryn, amicabazone, amidochlor, amidosulfuron, aminocyclopyrachlor, aminocyclopyrachlor-potassium, aminocyclopyrachlor-methyl, aminopyralid, amitrol, and ammonium sulfate. Sulfamate, Ailofos, Asulam, Atrazine, Azafenidin, Azimsulfuron, Beflubutamid, Benazolin, Benazolin-ethyl, Benfluralin, Benfuresate, Bensulfuron-methyl, Bensulide, Bentazone, Benbicyclon, Benfenap, Bicyclopyrone Bifenox, bilanafos, bilanafos-sodium, bispyribac, bispyribac-sodium, bromacil, bromobutide, bromofenoxim, bromoxynil, bromoxynil-potassium, bromoxynil-heptanoate, bromoxynil-octanoate, bromoxynil-butyrate, busoxinone, butachlorButafenacil, butamifos, butenachlor, butralin, butroxydim, butylate, cafenstrole, carbetamide, carfentrazone-ethyl, chloramben, chlorbromuron, chlorfenac, chlorfenac-sodi um), oat ester (chlorfenprop), chlorflurenol, chlorflurenol-methyl, chloridazon, chlorimuron, chlorimuron-ethyl, chlorophthalim, chlorotoluron, chlorthal-dimethyl, chlorsulfuron, cinidon, cinidon-ethyl, cyclohexane (cinm) ethylin, cinosulfuron, clethodim, clodinafop, clodinafop-propargyl, cromazine, clonylid, cloransulam, cloransulam-methyl, cumyluron, cyanamide, cyanazine, cycloate, cyclosulfuron ron), 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 (diolamin), 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-triisopropanolammonium, 2,4-D-triolamine (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, dic... lofop-P-methyl, diclosulam, difenzoquat, diflufenican, diflufenzopyr, diflufenzopyr-sodium, dimefuron, dimepiperate, dimethachlor, dimethametryn, dimethenamid, dimethenamid-P, dimetrasu lfuron, dinitramine, dinoterb, diphenamid, diquat, diquat-dibromid, dithiopyr, diuron, DNOC, endothal, EPTC, esprocarb, ethanalfluralin, ethametsulfuron, ethametsulfuron-methyl, ethiozidim n), ethofumesate, ethoxyfen, ethoxyfen-ethyl, ethoxysulfuron, etobenzanid, fenoxaprop, fenoxaprop-P, fenoxaprop-ethyl, fenoxaprop-P-ethyl, fenoxasulfone, fentrazamide, flampropHigh-efficiency dicofol flamprop-M-isopropyl, high-efficiency dicofol flamprop-M-methyl, flazasulfuron, floraulam, fluazifop, fluazifop-P, fluazifop-butyl, fluazifop-P-butyl, flucarbazone, flucarbazone-sodium, flucetosulfuron On, fluchloralin, flufenacet, flufenpyr, flufenpyr-ethyl, flumetsulam, flumiclorac, flumiclorac-pentyl, flumioxazin, fluometuron, fluoroglycofen, fluoroglycofen-ethyl, flupropanate, flupyrsulfuron pyrsulfuron, flupyrsulfuron-methyl-sodium, flurenol, flurenol-butyl, fluridone, flurochloridone, fluroxypyr, fluroxypyr-meptyl, flurtamone, fluthiacet, fluthiacet-methyl, fluthiamide, flusulfanilamide (fomesafen), flumethrin-sodium, foramsulfuron, fosamine, glufosinate, glufosinate-ammonium, glufosinate-P, glufosinate-P-ammonium, glufosinate-P-sodium, glyphosate, glyphosate-isopropylammoniumGlyphosate ammonium salt, glyphosate diammonium salt, glyphosate dimethyl ammonium salt, glyphosate potassium salt, glyphosate sodium salt, glyphosate trimethyl sulfide salt, halosulfuron, halosulfuron-methyl, haloxyfop, haloxyfop-P, haloxyfop-ethoxyethyl, haloxyfop-P-ethoxyethyl, haloxyfop-methyl, haloxyfop-P- methyl), hexazinone, imidacloprid, methyl imidacloprid, imidacloprid, imidacloprid ammonium, imidacloprid nicotinic acid, imidacloprid ammonium, imidacloprid nicotinic acid, imidacloprid ammonium, imidacloprid pyr, imidacloprid isopropylammonium, imidazoquinic acid, imidazoquinic acid ammonium. m), imazethapyr, imazethapyr-ammonium, imazosulfuron, indanofan, indaziflam, iodosulfuron, iodosulfuron-methyl-sodium, ioxynil, ioxynil-sodium, ioxynil-potassium, ioxynil-octanoate, ipfencarbaz One, isoproturon, isouron, isoxaben, isoxaflutole, karbutilate, ketospiradox, lactoferrin, lenacil, linuron, MCPA (salt, ester), MCPB (salt, ester), MCPB methyl ester, MCPB ethyl ester, MCPB sodium salt, 2-methyl-4-chloropropionic acid (mecoprop), sodium 2-methyl-4-chloropropionate, 2-methyl-4-chloropropionate butoxyethyl ester, homo-2-methyl-4-chloropropionic acid (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, metazanol Ribazin, Metsulfuron, Metsulfuron-methyl, Molinate, Monolinuron, Monosulfuron-ester, Napropamide, Neburon, Nicosulfuron, Nonanoic acid, Norflurazon, Oleic acid (fatty acid), Orbencarb, Orthosulfamuron, Oryzalin, Oxadiargyl, Oxadiazon, Oxasulfuron, Oxaziclomefon, Oxyfluorfen, Paraquat, Paraquat dichlorvos dichloride, pebulate, pendimethalin, penoxsulam, pentachlorphenol, pentoxazone, pethoxamid, petroleum oils, phenmedipham, phenmedipham-ethyl, picloram, picolinafen, pinoxadenPiperophos, pretilachlor, primisulfuron, primisulfuron-methyl, prodiamine, prifluraline, profoxydim, prometon, prometryn, propachlor, propanil, propaquizafop, propazine, propham, and isoprochlor opisochlor, propoxycarbazone, propoxycarbazone-sodium, propyrisulfuron, propyzamide, prosulfocarb, prosulfuron, pyraclonil, pyraflufen, pyraflufen-ethyl, pyrasulfotole, pyrazolynate, pyrazolate, pyrasulfuron zosulfuron, pyrazosulfuron-ethyl, pyrazoxyfen, pyribambenz, pyribambenz-isopropyl, pyribambenz-propyl, pyribenzoxim, pyributicarb, pyridafol, pyridate, pyriftalid, pyriminobac, pyriminobac-methyl, pyrimi Sulfan, pyrithiobac, pyrithiobac-sodium, pyroxasulfone, pyroxsulam, quinclorac, quinmerac, quinoclamine, quizalofop, quizalofop-ethyl, quizalofop-P, quizalofop-P-ethyl, quizalofop-P-tefurylRimsulfuron, saflufenacil, sethoxydim, siduron, simazine, simetryn, sulcotrione, sulfentrazone, sulfometuron, sulfometuron-methyl, sulfosate, and sulfosulfuron. Tebuthiuron, tefuryltrione, tembotrione, tepraloxydim, terbacil, terbucarb, terbumeton, terbuthylazin, terbutryn, thenylchlor, thiazopyr, thiencarbazone, thiencarbazone One or more of the following: carbazone-methyl, thifensulfuron, thifensulfuron-methyl, thiobencarb, toramezone, tralkoxydim, triafamone, triallate, triasulfuron, triaziflam, tribensulfuron-methyl, trifloxysulfuron, trifloxysulfuron-sodium, trifluralin, triflusulfuron, triflusulfuron-methyl, tritosulfuron, urea sulfate, and vernolate;

[0028] Furthermore, the plant growth regulators mentioned are selected from: abscisic acid, acibenzolar, acibenzolar-S-methyl, 5-aminolevulinic acid, cyclopropionidol, 6-benzylaminopurine, brassinolide, catechin, cloprop, cyclanilide, 3-(cycloprop-1-enyl)propionic acid, 3-(cycloprop-1-enyl)propionic acid, sodium salt, butyrylhydrazine, dazomet, n-decanol, dikegulac, and sodium dikegulac. Endothal, flumetralin, flurenol, flurenol-butyl, flurprimidol, forchlorfenuron, gibberellic acid, inabenfide, indole-3-acetic acid (IAA), 4-indole-3-ylbutyric acid, isoprothiolane, jasmonic acid, methyl jasmonic acid, kinetin, maleic hydrazide, mepiquat chloride Chloride), 1-methylcyclopropene, 2-(1-naphthyl)acetamide, 1-naphthylacetic acid, 2-naphthoxyacetic acid, nitrophenol mixture, 4-oxo-4-[(2-phenylethyl)amino]butyric acid, paclobutrazol, N-phenylphthalic acid, probenazol, prohexadione, calcium prohexadione, prohydrojasmone, propham, salicylic acid, strigolacton, tetrachloronitrobenzene, thidiazuron, triacontanol, trinexapac, tsitodef, uniconazole, uniconazole-P, or one or more of these.

[0029] Furthermore, the plant's living environment is an adverse condition, which is low temperature, low light, and drought.

[0030] Furthermore, the plants mentioned are food crops, cash crops, industrial raw material crops, feed crops, or medicinal crops;

[0031] Furthermore, the plants mentioned include cereal crops, vegetables, fruit trees, and flowers.

[0032] Furthermore, the plants mentioned are citrus fruits, strawberries, and peppers.

[0033] Furthermore, the criteria for judging stress resistance are plant growth indicators, plant physiological indicators, and plant yield indicators.

[0034] Furthermore, the plant growth indicators mentioned are the number of primary new roots, the longest lateral root length, root activity, plant height, stem diameter, total plant dry weight, root-to-shoot ratio, leaf area, relative leaf water content, and leaf water potential.

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

[0036] The plant yield indicators mentioned are single fruit weight and single plant yield.

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

[0038] 1) By treating plants in stressful environments, it is possible to improve the plants' ability to resist stress and reduce the damage to plant production caused by adverse factors such as drought and low temperature, which has unexpected application value.

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

[0040] To make the technical solution, objectives and advantages of the present invention clearer, the present invention is described with reference to the following specific embodiments. However, the present invention can be implemented in various forms and should not be limited to the embodiments described herein.

[0041] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

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

[0043]

[0044]

[0045] Example 1: Effects of diphenyl sulfide compounds on the growth and drought resistance of citrus seedlings under drought stress

[0046] Experimental Methods: The experiment was conducted in a greenhouse using pot cultivation. Citrus seedlings that were 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 consisted of nutrient soil and sand (volume ratio 2:1). One healthy and uniformly growing citrus seedling was selected and transplanted into each ceramic pot. Once the citrus seedlings were growing well, a drought stress experiment was conducted.

[0047] Chemical treatment: Before drought stress treatment, the above compounds were diluted to the experimental concentration. The experimental agents were sprayed onto the entire citrus plant using the conventional spraying method. The amount of agent applied was such that the leaves were evenly covered with the agent and a few droplets fell.

[0048] Drought stress treatments: Severe drought stress treatments (SS0-SS9) and a normal irrigation control (CK) were set up. Each treatment was repeated 4 times, and 5 plants were selected from each treatment.

[0049] Table 1 Experimental treatment settings

[0050] deal with Applying medicine Drug concentration (mg / L) Processing conditions SS1 Compound of Formula I 15 Severe drought stress treatment SS2 Compound of Formula II 15 Severe drought stress treatment SS3 Formula III compound 15 Severe drought stress treatment SS4 Formula IV compound 15 Severe drought stress treatment SS5 Formula V compound 15 Severe drought stress treatment SS6 Formula VI compound 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 / Spray with an equal amount of water Severe drought stress treatment CK / Spray with an equal amount of water Normal irrigation treatment

[0051] Note: Under severe drought stress, soil volumetric moisture content was maintained at 9%–13%; in the control group (normal irrigation treatment), soil volumetric moisture content was maintained at 20%–30%.

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

[0053] 1. Seedling growth index measurement:

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

[0055] Biomass determination: First, wash and dry the plants, then blanch them in an oven at 105℃ for 30 minutes, and then dry them at 65℃ to constant weight. Weigh the dry weight of the aboveground parts and the dry weight of the underground parts separately, and calculate the dry weight of the whole plant.

[0056] Root-to-crown ratio:

[0057]

[0058] 2. Seedling root system index measurement:

[0059] First-level new root count: Count the number of new roots that are longer than 1cm and have a white color using tweezers.

[0060] Longest lateral root length: Measured with a ruler from the base of the root to the longest part of the root.

[0061] Root activity: Root activity was determined using the triphenyltetrazolium chloride (TTC) reduction method.

[0062] 3. Seedling leaf index measurement:

[0063] Leaf area: Measured using the graph paper method, starting from the first leaf from top to bottom.

[0064] Relative moisture content:

[0065]

[0066] Leaf water potential: The measurement time was from 9:00 to 14:00, and the leaf water potential was measured using a WP4C Dew Point Potentia Meter. Before the measurement, the leaf was calibrated, and then the first fully unfolded leaf with the same growth status and the same light direction was randomly selected, and the middle part of the leaf was measured.

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

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

[0069] deal with Number of new roots at level 1 (number of roots) Longest lateral root length (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 average of four repeated measurements. Lowercase letters (a, b, c, etc.) in the table indicate the differences in each indicator at the 0.05 level under different treatments.

[0071] As shown in Table 2, spraying with compounds containing diphenyl sulfide effectively increased the number of primary roots, the longest lateral root length, and root vigor in citrus seedlings, but the effects varied among different treatment groups. Application of diphenyl sulfide compounds significantly promoted root growth and elongation in citrus seedlings, expanding root volume and thus increasing root absorption and transport capacity, thereby improving drought resistance. Drought significantly reduced root vigor in citrus seedlings, but application of diphenyl sulfide compounds significantly mitigated the decline in root vigor, effectively alleviating the negative effects of drought on citrus seedling root vigor and helping to resist drought.

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

[0073] deal with Plant height (cm) Whole plant dry weight (g) Root-to-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 average of four repeated measurements. Lowercase letters (a, b, c, etc.) in the table indicate the differences in each indicator at the 0.05 level under different treatments.

[0075] The results (Table 3) showed that drought stress had a significant impact on seedling height, dry weight, and root-to-shoot ratio. Application of compounds containing diphenyl sulfide under drought conditions effectively promoted the growth of citrus seedlings under drought stress.

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

[0077] deal with <![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 average of four repeated measurements. Lowercase letters (a, b, c, etc.) in the table indicate the differences in each indicator at the 0.05 level under different treatments.

[0079] The experimental results (see Table 4) showed that leaf growth and development were inhibited by water stress, and the application of compounds containing diphenyl sulfide effectively mitigated the effects of drought stress. Relative leaf water content and leaf water potential are direct indicators of the degree of drought stress experienced by plants. The application of compounds containing diphenyl sulfide significantly increased relative leaf water content and water potential, accelerated the transport of nutrients and metabolites within the plant, promoted plant life activities, and thus enhanced drought resistance.

[0080] Example 2: Effects of diphenyl sulfide compounds on strawberry growth under low temperature and low light stress

[0081] Experimental location: The experiment was conducted in a solar greenhouse in Jimo, Qingdao, using a north-south ridge cultivation method for strawberries. The tested variety was Hongyan. The experimental period was from September 2023 to March 2024 (this period coincided with the time when strawberries were affected by low temperatures and insufficient sunlight).

[0082] Experimental Design: The experiment included 10 treatments: 9 chemical treatments and 1 control (a blank control sprayed with the same amount of water at the same time as the chemical treatments). Each treatment was replicated 4 times in a randomized block design. Strawberry plants in each treatment were managed according to conventional fertilization and other agricultural practices.

[0083] Table 5 Experimental treatment settings

[0084] deal with Applying medicine Drug concentration (mg / L) SS1 Compound of Formula I 10 SS2 Compound of Formula II 10 SS3 Formula III compound 10 SS4 Formula IV compound 10 SS5 Formula V compound 10 SS6 Formula VI compound 10 SS7 Compound of Formula VII 10 SS8 Compound of Formula VIII 10 SS9 Compound of Formula IX 10 CK / Spray with an equal amount of water

[0085] Chemical treatment: The experiment began with spraying each treatment 30 days after strawberry transplanting, followed by a second spray 15 days later, for a total of two sprays. Each spray applied per 667 m². 2 Spray 25L.

[0086] Measurement indicators and methods:

[0087] Plant height: The natural height from the substrate surface to most leaves was measured on October 10 using a ruler. Each treatment was replicated 4 times, and 5 strawberry seedlings were investigated in each replicate.

[0088] Stem diameter: The diameter of the stem base of strawberry seedlings was measured with vernier calipers on October 10. Each treatment was replicated 4 times, and 5 strawberry seedlings were investigated in each replicate.

[0089] Leaf area: During 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 was repeated 4 times, and 5 strawberry seedlings were investigated in each replicate.

[0090] Table 6. Effects of diphenyl sulfide compounds on strawberry growth under low temperature and low light stress.

[0091] deal with 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 of four repeated measurements. Lowercase letters (a, b, c, etc.) in the table indicate the differences in each indicator at the 0.05 level under different treatments.

[0093] The experimental results (see Table 6) showed that the application of compounds containing diphenyl sulfides effectively mitigated the effects of low-temperature stress on strawberries. The application of these compounds significantly increased strawberry plant height, stem diameter, and leaf area, enhancing photosynthesis and nutrient transport to resist low-temperature stress.

[0094] Example 3: Effects of diphenyl sulfide compounds on growth, development, physiological characteristics, and yield of peppers during flowering and fruiting stages under drought stress.

[0095] Experimental Design: The experiment included six treatments (details in the table below): normal watering (control, CK), 25% of normal watering (drought stress, SS0, SS1, SS2, SS5, SS9). Each treatment consisted of 20 pots. Normal watering was provided during the seedling stage, followed by drought stress treatment during the budding stage, continuing until fruit maturity. Throughout the entire growth period, rainwater was shielded using a greenhouse. Except for watering, all other field management practices remained consistent.

[0096] Table 7 Experimental Treatment Settings

[0097] deal with test reagents Drug concentration (mg / L) SS1 Compound of Formula I 10 SS2 Compound of Formula II 10 SS5 Formula V compound 10 SS9 Compound of Formula IX 10 SS0 / Spray with an equal amount of water Normal watering (CK) / Spray with an equal amount of water

[0098] Experimental Method: Conventional plug tray seedlings were used. After emergence, seedlings were transplanted into pots when they reached a height of 10 cm. Each pot was 26 cm in diameter and 22 cm high, with one seedling planted in each pot. The experimental agents were sprayed once during the flowering and fruiting period of the chili peppers, according to the designed concentration. The entire chili pepper plant was sprayed using a conventional spraying method, ensuring the leaves were moist but not dripping.

[0099] Test methods:

[0100] 1. Growth index determination: Five plants with consistent growth were selected from each treatment to measure plant height, stem diameter and leaf area.

[0101] 2. Physiological indicators: Chlorophyll content was determined by ethanol-acetone mixture extraction method, and peroxidase (POD) activity was determined by kit from Suzhou Keming Biotechnology Co., Ltd.

[0102] 3. Yield determination: Chili peppers were harvested 5 times throughout their entire growth period. The yield per plant was determined, and some fruits were selected for individual fruit weight determination.

[0103] Table 8. Effects of diphenyl sulfide compounds on growth, development, physiological characteristics, and yield of chili peppers during flowering and fruiting stages under drought stress.

[0104]

[0105] Note: The data in the table are the average of four repeated measurements. Lowercase letters (a, b, c, etc.) in the table indicate the differences in each indicator at the 0.05 level under different treatments.

[0106] The experimental results (see Table 8) showed that drought stress significantly inhibited the growth and development of peppers. The more severe the drought stress, the more pronounced the stunting of the peppers, the thinner the stems, the smaller the leaf area, and the lower the chlorophyll content in the leaves. To mitigate or eliminate the damage caused by reactive oxygen species (ROS) to plants, peroxidase (POD) activity is enhanced to scavenge ROS produced within the plant, thus reducing the impact of drought stress on plant growth and improving the plant's ability to resist drought stress. The application of compounds containing biphenyl sulfide (BPS) can reduce the impact of drought on various growth indicators, physiological characteristics, and yield indicators of pepper plants to varying degrees.

[0107] Although this application describes specific embodiments in detail with the aid of examples, the disclosure of this application can be modified and substituted in various ways. However, it should be understood that the disclosure of this application is not limited to the specific form disclosed. Rather, the disclosure of this application covers all modifications, equivalents, and substitutions within the scope of the disclosure of this application, the scope of which is defined by the appended claims and their legal equivalents.

Claims

1. The use of a compound containing diphenyl sulfide or a combination thereof for improving plant stress resistance, characterized in that, The biphenyl sulfide compounds mentioned are: (Formula I) (Formula II) (Formula III) (Formula IV) (Form V) (Form VI) (Form VII) (Form VIII) (Formula IX); the plants are citrus, strawberry, and pepper; the living environment of the plants is adverse conditions, which are low temperature, low light, and drought.

2. The use according to claim 1, characterized in that, The biphenyl sulfide compounds mentioned are: (Formula I) (Formula II) (Form V) or (Form IX).

3. The use according to claim 2, characterized in that, The biphenyl sulfide compounds are compounds of formula I: (Formula I).

4. The use according to claim 1, characterized in that, The aforementioned diphenyl sulfide compounds or their combinations are prepared into pesticide formulations, wherein the formulations, in addition to containing any one of the compounds of formulas I-IX, also include pesticide-permissible carriers and formulation adjuvants.

5. The use according to claim 1, characterized in that, In addition to containing any one of the compounds of formulas I-IX, the active ingredient of the composition also includes 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 parts of the plant to improve its stress resistance.

7. The use according to any one of claims 1-6, characterized in that, The criteria for judging stress resistance are plant growth indicators, plant physiological indicators, and plant yield indicators. The plant growth indicators mentioned are: number of primary new roots, length of longest lateral root, root activity, plant height, stem diameter, total dry weight of plant, root-to-shoot ratio, leaf area, relative water content of leaves, and leaf water potential. The plant physiological indicators mentioned are chlorophyll content and peroxidase content; The plant yield indicators mentioned are single fruit weight and single plant yield.

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