Isoxaflutole HPPD inhibitor yokutshabalalisa ukhula

Ingcaciso yeMveliso

I-Isoxaflutole yinkqubo yokutshabalalisa ukhula - ifuduswa kuso sonke isityalo emva kokufunxwa ngeengcambu kunye namahlamvu kwaye iguqulwa ngokukhawuleza kwiplanta ukuya kwi-biologically active diketonitrile, ethi emva koko ikhutshwe kwi-metabolite engasebenziyo, i-2-methylsulphonyl-4-trifluoromethylbenzoic acid.Umsebenzi wemveliso ngokusebenzisa inhibition ye-enzyme p-hydroxy phenyl pyruvate dioxygenase (HPPD), eguqula i-p-hydroxy phenyl pyruvate kwi-homogentisate, inyathelo eliphambili kwi-plastoquinone biosynthesis.I-Isoxaflutole ilawula uluhlu olubanzi lwengca kunye nokhula olunamagqabi abanzi ngokuwutshisa ukhula olusakhulayo okanye oluhlumayo emva kokufunyaniswa kwemichiza yokutshabalalisa ukhula ngendlela yeengcambu.Ukulandela i-foliar okanye i-root uptake, i-isoxaflutole iguqulelwa ngokukhawuleza kwi-diketonitrile derivative (2-cyclopropyl-3- (2-mesyl-4-trifluoromethylphenyl) -3-oxopropanenitrile) ngokuvula iringi ye-isoxazole.

I-Isoxaflutole ingasetyenziswa i-pre-ergence, i-pre-plant okanye i-pre-plant idityaniswe kumbona naphambi kokuhluma okanye kwangethuba emva kokuhluma kweswekile.Umlinganiselo ophezulu uyafuneka kwizicelo zangaphambi kokutyala.Kulingo lwasendle, i-isoxaflutole inike amanqanaba afanayo olawulo kunyango oluqhelekileyo lwemichiza yokutshabalalisa ukhula kodwa kumazinga okusetyenziswa aphantse abe ngama-50 ngaphantsi.Ilawula ukhula oluxhathisa i-triazine xa lusetyenziswa lodwa nakwimixube.Inkampani icebisa ukuba isetyenziswe kwimixube, kwaye ngokujikeleza okanye ngokulandelelana kunye nezinye izibulala-zinambuzane ukulibazisa ukuqala kokuxhathisa.

I-Isoxaflutole, enobomi besiqingatha seeyure ezili-12 ukuya kwiintsuku ezi-3, ngokuxhomekeke kuhlobo lomhlaba kunye nezinye izinto, nayo iguqukela kwi-diketonitrile emhlabeni.I-Isoxaflutole igcinwa kumphezulu womhlaba, ivumela ukuba ithathwe yimbewu yokhula entshula ngaphezulu, ngelixa idiketonitrile, enesiqingatha sobomi beentsuku ezingama-20 ukuya kwezingama-30, igqobhoza emhlabeni kwaye ithathwe ziingcambu zezityalo.Kuzo zombini izityalo kunye nasemhlabeni, i-diketonitrile iguqulelwa kwi-benzoic acid engasebenziyo.

Le mveliso akufuneki igalelwe kumhlaba oyisanti okanye oluvunduvundu okanye kumhlaba ongaphantsi kwe-2% yezinto eziphilayo.Ukuze kuliwe netyhefu enokubakho kwiintlanzi, izityalo zasemanzini kunye nezilwanyana ezingenamqolo, kufuneka ummandla osisithinteli oziimitha ezingama-22 ukukhusela iindawo ezinovakalelo, ezifana nemigxobhozo, amachibi, amachibi kunye nemilambo.