Mchitidwe wa zochita zaIAA (Indole-3-Acetic Acid) ndikulimbikitsa kugawanika kwa ma cell, kutalika ndi kukula.

Low ndende ndi Gibberellic asidi ndi mankhwala ena synergistically kulimbikitsa kukula ndi chitukuko cha zomera.Kukhazikika kwakukulu kumapangitsa kupanga ethylene yokhazikika komanso kumalimbikitsa kusasitsa komanso kukhazikika kwamafuta kapena ziwalo za mbewu.

Ndiwo njira yoyambira kuzula mizu yomwe imagwiritsidwa ntchito paulimi komanso yowongolera kukula kwa mbewu zosiyanasiyana.Koma zimawonongeka mosavuta mkati ndi kunja kwa mbewu.

Zofunikira zokhudza thupi la munthuIBA (Indole-3-Butyric Acid)ndizofanana ndi IAA (Indole-3-Acetic Acid).Pambuyo kutengeka ndi zomera, sikophweka kuchita m'thupi, ndipo nthawi zambiri amakhala mu gawo la mankhwala, choncho amagwiritsidwa ntchito makamaka kulimbikitsa mizu ya cuttings.Ngakhale kuti ndi yokhazikika kuposa indole acetic acid, ndiyosavuta kuwola ikayatsidwa ndi kuwala.

Single ntchito ali rooting kwambiri zosiyanasiyana mbewu, koma kusakaniza zomera kukula owongolera ndi rooting tingati ndi bwino.Mwachitsanzo,IAA or IBAamagwiritsidwa ntchito kulimbikitsa mizu yabwino, yochepa komanso yanthambi pamene zodulidwa zimamera;NAA (Naphthylacetic Acid)imatha kuyambitsa mizu yokhuthala, endoplasmic yokhala ndi nthambi zambiri, etc., kotero kuphatikiza kwawo kumagwiritsidwa ntchito popanga.