Mesotrione selective herbicide don amfanin amfanin gona

Bayanin samfur

Mesotrione sabon maganin ciyawa ne da ake ƙerawa don zaɓin kafin da kuma bayan fitowar fitowar na babban kewayon ganyen ganye da ciyawa a cikin masara (Zea mays).Memba ne na dangin benzoylcyclohexane-1,3-dione na herbicides, waɗanda aka samo su ta hanyar sinadarai daga phytotoxin na halitta da aka samu daga shukar kwalabe na Californian, Callistemon citrinus.Filin yana aiki ta hanyar hana gasa na enzyme 4-hydroxyphenylpyruvate dioxygenase (HPPD), wani sashi na hanyar biochemical wanda ke canza tyrosine zuwa plastoquinone da alpha-tocopherol.Mesotrione babban mai hana HPPD ne daga Arabidopsis thaliana, tare da kimar Ki na c 6-18 pM.Ana ɗauka da sauri ta nau'in ciyawa bayan aikace-aikacen foliar, kuma ana rarraba shi a cikin tsire-tsire ta hanyar motsi na acropetal da basipetal.Masara tana jure wa mesotrione sakamakon zaɓin ƙwayar cuta ta shuka amfanin gona.Shan mesotrione a hankali, dangane da nau'in ciyawa mai saukin kamuwa, na iya ba da gudummawa ga amfanin sa azaman maganin ciyawa don amfani da masara.Mesotrione yana ba da ikon sarrafa manyan ciyawa mai faɗi, kuma ana iya amfani da shi a cikin shirye-shiryen sarrafa ciyawa mai haɗaɗɗiya dangane da dabarar kawar da ciyawar da mai shuka ya fi so.

Mesotrione yana hana enzyme 4-hydroxyphenylpyruvate dioxygenase (HPPD).Yana da matuƙar ƙarfi mai hana HPPD a cikin gwaje-gwajen dakin gwaje-gwaje ta amfani da shuka Arabidopsis thaliana, tare da ƙimar Ki kusan 10 pM.A cikin tsire-tsire, HPPD ya zama dole don biosynthesis na tocopherols da na plastoquinone, wanda ke da mahimmanci ga samar da carotenoid.Hana hanya a ƙarshe yana haifar da bleaching na ganye yayin da chlorophyll ya lalace, sannan mutuwar shuka.

Mesotrione shine maganin ciyawa na tsari kafin da kuma bayan fitowar tsiro don zaɓin lamba da sauran sarrafa weeds a cikin masarar fili, masarar iri, popcorn rawaya da masara mai zaki.