Usoro nke ime iheIndole-3-Acetic Acid (IAA) bụ ịkwalite nkewa cell, elongation na mgbasawanye.

Obere ịta na Gibberelic acid na ndị ọzọ pesticides synergistically na-akwalite uto na mmepe nke osisi.Ntinye uche dị elu na-ebute mmepụta nke ethylene endogenous ma na-akwalite maturation na senescence nke anụ ahụ ma ọ bụ akụkụ osisi.

Ọ bụ ihe izizi mgbọrọgwụ na-eji n'ọrụ ugbo yana onye na-ahụ maka uto osisi nwere ọtụtụ ebumnuche.Ma ọ na-adị mfe degraded n'ime na n'èzí osisi.

The isi physiological ọrụ nkeIBA (Indole-3-Butyric Acid)Yiri IAA (Indole-3-Acetic Acid).Mgbe etinye obi gị dum na osisi, ọ dịghị mfe na-eduzi n'ime ahụ, na-anọkarị na ọgwụgwọ akụkụ, n'ihi ya, ọ na-bụ-eji na-akwalite mgbọrọgwụ nke cuttings.Ọ bụ ezie na ọ kwụsiri ike karịa indole acetic acid, ọ dị mfe ire ere mgbe ekpughere ya na ìhè.

Otu ojiji nwere mmetụta mgbọrọgwụ na ụdị ihe ọkụkụ dị iche iche, mana agwakọta ya na ndị na-ahụ maka uto osisi ndị ọzọ nwere mmetụta mgbọrọgwụ, mmetụta ahụ ka mma.Ọmụmaatụ,IAA or IBAa na-eji akwalite mgbọrọgwụ nke ọma, obere na alaka mgbe osisi na-agbanye mgbọrọgwụ;Naphthylacetic acid (NAA)nwere ike ime ka mgbọrọgwụ siri ike, endoplasmic multi-laka, wdg, ya mere a na-ejikarị nchikota ha eme ihe na mmepụta.