Uto osisiretarder bụ ihe dị mkpa na usoro ihe ọkụkụ.Site n'ịchịkwa ihe ọkụkụ na-eto eto na ịmụ nwa nke ihe ọkụkụ, enwere ike nweta ezigbo mma na mkpụrụ dị elu.Ihe na-eme ka ihe ọkụkụ na-eto eto na-agụnyekarị paclobutrazol, uniconazole, peptidomimetics, chlormethalin, wdg. Dị ka ụdị ọhụrụ nke mmepụta ihe ọkụkụ, calcium prohexadione enwetawo nlebara anya zuru oke n'ahịa n'afọ ndị na-adịbeghị anya, ọnụ ọgụgụ nke ndebanye aha amụbawokwa ngwa ngwa.Mgbe ahụ,paclobutrasol, niconazole, paroxamine, chlorhexidine, na prohexadione calcium, kedu ihe dị iche na ngwa ahịa nke ngwaahịa ndị a?
(1) Prohexadione calcium: Ọ bụ ụdị ọhụrụ nke na-ebelata ihe ọkụkụ.
Ọrụ ya bụ na ọ nwere ike igbochi GA1 na gibberellin, belata ogologo oge osisi, wee si otú a na-achịkwa uto nke osisi.N'otu oge ahụ, ọ nweghị mmetụta na GA4 nke na-achịkwa ọdịiche nke ifuru ifuru osisi na mmepe ọka.
A malitere calcium Prohexadione na Japan na 1994 dị ka ihe na-eme ka acyl cyclohexanedione uto retardant.Nchọpụta nke calcium prohexadione dị iche na nke quaternary ammonium salts (chameleon, mepinium), triazoles (paclobutrazol, alkene) ihe ọkụkụ na-eto eto dị ka oxazole) emepụtala ubi ọhụrụ nke mgbochi oge ikpeazụ nke gibberellin biosynthesis, ma bụrụ nke a na-ere ahịa. na-eji ọtụtụ ebe na Europe na United States.Ka ọ dị ugbu a, prohexadione-calcium na-enwe nchegbu nke ukwuu site na ụlọ ọrụ ụlọ, isi ihe kpatara ya bụ na e jiri ya tụnyere triazole retarders, prohexadione-calcium enweghị ihe ọ bụla fọdụrụnụ na-egbu egbu na osisi na-atụgharị, ọ dịghị mmetọ na gburugburu ebe obibi, ma nwee nnukwu uru.N'ọdịnihu, ọ nwere ike dochie triazole uto retardants, na nwere sara mbara ngwa atụmanya na ubi, mkpụrụ osisi, okooko osisi, Chinese ọgwụ ihe na akụ akụ akụ.
(2) Paclobutrasol: Ọ bụ ihe na-egbochi osisi gibberellic acid endogenous.Ọ na-enwe mmetụta nke igbu oge na-eto eto, na-egbochi ihe ọkụkụ osisi elongation, mbelata internodes, na-akwalite tillering, na-abawanye nrụgide nrụgide osisi, na-akwalite ọdịiche nke ifuru osisi na ịba ụba mkpụrụ.Paclobutrasol dị mma maka ihe ọkụkụ dị ka osikapa, ọka wit, ahụekere, osisi mkpụrụ osisi, soybean, lawn, wdg, ma nwee mmetụta dị ịrịba ama nke ịchịkwa uto.
Mmetụta dị na paclobutrasol: Iji oke eme ihe nwere ike ime ka osisi dwarf, mgbọrọgwụ na tubers ndị nwere nkwarụ, akwụkwọ ndị a kpụkọrọ akpụkọ, okooko osisi ndị na-adịghị agwụ agwụ, ịwụfu akwụkwọ ochie na ala, na akwụkwọ ndị na-eto eto gbagọrọ agbagọ ma na-ebelata.N'ihi ogologo oge nke ịdị irè paclobutrasol, iji oke eme ihe ga-anọgide na ala, ọ ga-emekwa ka phytotoxicity na-esote mkpụrụ osisi na-esote, na-akpata enweghị mkpụrụ, mpụta mbubreyo, obere mpụta mkpụrụ osisi, na nrụrụ seedling na mgbaàmà phytotoxic ndị ọzọ.
(3) Uniconazole: Ọ bụkwa ihe na-egbochi gibberellin.Ọ nwere ọrụ nke ịhazi uto ahịhịa, na-ebelata internodes, osisi dwarfing, na-akwalite uto mpụta na mpụta ifuru ifuru, na ịkwalite nguzogide nrụgide.N'ihi njikọ abụọ nke carbon paclobutrasol, ọrụ ndụ ya na mmetụta ọgwụ ya dị ugboro 6 ruo 10 na ugboro 4 ruo 10 dị elu karịa nke paclobutrasol, n'otu n'otu, na ihe fọdụrụ n'ime ala bụ nanị ihe dị ka otu ụzọ n'ụzọ anọ nke paclobutrazol, na ịdị irè ya Ọnụ ọgụgụ ire ure na-adị ngwa ngwa, na mmetụta nke ihe ọkụkụ na-esote bụ nanị 1/5 nke paclobutrasol.
Mmetụta dị n'akụkụ uniconazole: mgbe ejiri ya na oke doses, ọ ga-eme ka phytotoxicity, na-eme ka ọkụ na-ere ọkụ, na-akpọnwụ, na-eto eto na-adịghị mma, nrụrụ akwụkwọ, akwụkwọ na-ada, okooko osisi na-ada, mkpụrụ osisi na-ada, mbubreyo ntozu, wdg, na ngwa n'ime ogbo seedling nke akwukwo nri. ga-emetụtakwa uto nke mkpụrụ osisi , Ọ na-egbukwa egbu egbu azụ na ọ dịghị mma maka iji ya na ọdọ mmiri azụ na ubi anụmanụ ndị ọzọ mmiri.
(4) Peptidamine (Mepinium): Ọ bụ ihe na-egbochi gibberellin.Ọ nwere ike ịkwalite njikọ nke chlorophyll, osisi ahụ siri ike, enwere ike ịmịnye ya site na akwụkwọ na mgbọrọgwụ nke osisi ahụ, ma bufee ya na osisi ahụ dum, si otú ahụ na-egbochi elongation cell na apical dominance, ma nwee ike belata internodes ma mee ka osisi ahụ dị mkpụmkpụ. ụdị kọmpat.Ọ nwere ike igbu oge ntolite nke ahịhịa ndụ, gbochie osisi ahụ ito eto, ma gbuo oge akara.Peptamine nwere ike imeziwanye nkwụsi ike nke membranes cell ma mee ka nrụgide nrụgide osisi dịkwuo elu.E jiri ya tụnyere paclobutrasol na uniconazole, ọ nwere ihe ndị na-agwọ ọrịa dị nro, enweghị mgbakasị ahụ, yana nchekwa dị elu.Ọ nwere ike ihu ọma-etinyere niile oge nke kụrụ, ọbụna na seedling na okooko nkebi mgbe kụrụ dị nnọọ mwute ọgwụ ọjọọ., na ihu ọma enweghị oghom mmetụta.
(5) Chlormetrodin: Ọ na-enweta mmetụta nke ịchịkwa hyperactivity site na igbochi njikọ nke gibberellin endogenous.Chlormetrodin nwere mmetụta na-achịkwa uto osisi, na-edozi uto ahịhịa na uto ịmụ nwa, na-eme ka pollination na mkpụrụ osisi na-eto eto, ma na-abawanye ịkụ mkpụrụ dị mma.gbuo oge ịgbatị cell, osisi dwarf, osisi siri ike, ma mee ka internodes dị mkpụmkpụ.
Dị iche na paclobutrasol na mepiperonium, a na-ejikarị paclobutrasol eme ihe na ogbo seedling na ọhụrụ oge ịse, ma na-enwe mmetụta dị mma na ahụekere, ma mmetụta na mgbụsị akwụkwọ na oyi ihe ubi bụ n'ozuzu;N'ihe ọkụkụ dị mkpụmkpụ, iji chlormethalin eme ihe n'ụzọ na-ezighi ezi ga-ebutekarị mbelata ihe ọkụkụ na phytotoxicity siri ike ịkwụsị;mepiperinium dị obere ntakịrị, enwere ike ị nweta ahụ iru ala site n'ịfesa gibberellin ma ọ bụ ịgbasa mmiri iji mee ka ọmụmụ pụta mgbe phytotoxicity gasịrị.
Oge nzipu: Jul-19-2022