PGR GA3 Acide Gibberellic Acide CAS 77-06-5

(I) Guteza imbere gukura kuramba
Acide ya Gibberellic ingaruka zingenzi zifatika ni uguteza imbere imikurire yibimera, cyane cyane bishobora guteza imbere ingirabuzimafatizo.Acide ya Gibberellic itera imbere kandi ifite ibintu bikurikira:

1. Acide ya Gibberellic ituma imikurire yose ikura, iteza imbere cyane imikurire yibihingwa, cyane cyane ubwoko bwingaruka za dwarf zigaragara cyane.Ariko kurambura aside ya gibberellic mubice bya vitro stem nta ruhare runini mugutezimbere imikurire mito na IAA ku gihingwa cyose, ariko rero guca ibiti umubiri muremure ufite uruhare runini mukuzamura.Acide ya Gibberellic kugirango iteze imbere kurambura ibihingwa byitwa dwarf biterwa nisoko ya gibberellic aside biosynthesis yahagaritse amoko ya dwarf, bigatuma aside ya gibberellique iba munsi yubwoko busanzwe kubwinyungu.
2. Kugira ngo intambwe ikure, acide gibberellic iteza imbere intera ndende yo kuramba iba ndende, aho kongera umubare wibice.
3. Ndetse no hejuru yibikorwa byiza byibandaho, ntishobora kandi kubuza gukura, iracyerekana ingaruka zikomeye zo kuzamurwa mu ntera, kuzamura auxin ifite intumbero nziza mugihe cyo gukura kw'ibimera biratandukanye cyane.
4. Ubwoko butandukanye bwibimera nubwoko bwa aside ya gibberellic itandukanye cyane no gukoresha aside ya gibberellic mu mboga (seleri, salitusi, amababi), urwuri, ibihingwa nkicyayi na ramie, bitanga umusaruro mwinshi.

(II) Tera indabyo

Ibiti bimwe byo hejuru bitandukanya indabyo biterwa nuburebure bwumunsi (Photoperiod) ningaruka zubushyuhe.Kurugero, kubihingwa byimyaka ibiri, bisaba iminsi runaka yo kuvura ubukonje (ni vernalisation) kugirango bimera, ariko ntibigaragaze ukundi kumera, gukura kwa rosette.Niba ibyo bimera bidafite aho bihurira ukoresheje aside ya gibberellic, ntabwo biterwa nubushyuhe buke nabyo birashobora gutera indabyo, kandi ingaruka ziragaragara.Byongeye kandi, irashobora gusimbuza iyinjizwa ryigihe kirekire cyibimera byindabyo muminsi mike, ariko aside ya gibberellic kumunsi wibihingwa byigihe gito itandukanyirizo ryururabyo rutarinze guteza imbere itandukanyirizo ryururabyo rwibimera bimaze kuba, aside ya gibberellic kumurabyo wacyo ifunguye bifite ingaruka zikomeye zo guteza imbere.Nka aside ya gibberellic irashobora guteza imbere stevia, cycad na Cupressaceae, ibihingwa byindabyo za Taxodiaceae.

(III) Kureka gusinzira

Hamwe na 2 ~ 3μg · g kuvura aside ya gibberellic ibirayi bisinziriye birashobora gutuma bimera vuba, bishobora guhaza ibikenerwa byo guhinga ibirayi inshuro nyinshi mumwaka.Umucyo ukeneye kumera imbuto ukenera ubushyuhe buke, nkimbuto za salitusi, itabi, ibase, plum na pome, nibindi, aside gibberellic irashobora gusimbuza urumuri nubushyuhe buke kugirango icike ibitotsi, ni ukubera ko aside gibberellic ishobora gutera α- amylase, synthesis ya protease hamwe nindi misemburo ya hydrolytike itera kwangirika kwibikoresho byo kubika imbuto kugirango urusoro rukure kandi rukeneye iterambere.Mu nganda zikora byeri, hamwe no kuvura aside ya gibberellic itabanje kumera imbuto za sayiri, irashobora gutuma umusaruro wa α- amylase, uburyo bwo kweza bwihuta mu gihe cyo guteka no gukoresha imiti ihumeka y’ubuhumekero, bityo bikagabanya ibiciro.

(IV) Guteza imbere itandukaniro ryabagabo

Kubimera byindabyo zibiri zingana nyuma yo kuvurwa na acide gibberellic, byongera umubare windabyo zabagabo;Ku bimera byigitsina gore dioecious, nko kuvura aside aside ya gibberellic, nayo itegeka igitsina gabo.Ni muri urwo rwego ingaruka za auxin na gibberellic aside na Ethylene bitandukanye.

(V) Izindi ngaruka zifatika
Acide ya Gibberellic irashobora kandi gushimangira ingaruka za IAA mugukangurira intungamubiri no guteza imbere ibihingwa bimwe na bimwe parthenocarpy, gutinda amababi ya senescence.Byongeye kandi, aside ya gibberellic irashobora kandi guteza imbere kugabana no gutandukanya selile, gibberellic aside kugirango igabanye ingirabuzimafatizo biterwa no kugabanuka kwicyiciro cya G1 na S.Ariko aside ya gibberellic yabujije gushinga imizi ya adventitive ariko iyo auxin itandukanye.