Thidiazuron (TDZ) o se faʻatonuga o le tuputupu aʻe o laʻau urea. E mafai ona fa'aoga i lalo ole tulaga maualuga ole gaogao, tamato gaosia, pepa ma isi fua. A maeʻa ona mitiia e laulaau o laʻau, e mafai ona faʻalauteleina laulaʻau vave, lea e aoga i le seleseleina masini. ; Faʻaoga i lalo o tulaga maualalo, e iai le cytokinin gaioiga ma e mafai ona faʻaaogaina i apu, pears, peaches, cherries, watermelons, melons ma isi fualaʻau e faʻateleina ai fua o fualaʻau fualaʻau, faʻalauteleina le faʻalauteleina o fualaau aina, ma faʻateleina fua ma le lelei.

Brassinolide (BR) e ese mai isi faʻatonuga o le tuputupu aʻe o laʻau i lona tasi-auala faʻatatau i le faʻalauiloaina o fua o fualaʻau ma faʻaleleia le lelei. Mo se faʻataʻitaʻiga, e le gata o loʻo i ai galuega faʻaletino o auxin ma cytokinin, ae o loʻo i ai foi le malosi e faʻateleina ai le photosynthesis ma faʻatonutonu le tufatufaina atu o meaʻai, faʻaleleia le felauaiga o gaʻo mai laʻau ma laulaau i fatu, faʻaleleia le teteʻe o fua i mea leaga i fafo, ma siitia le tuputupu ae o vaega vaivai o le laau. O le mea lea, e matua lautele le faʻaaogaina ma le faʻatinoga.

O le DA-6 (Diethyl aminoethyl hexanoate) o se faʻatonuga o le tuputupu aʻe o laʻau malosi ma le lautele o alaleo ma aʻafiaga. E mafai ona faʻateleina le gaioiga o le peroxidase ma le nitrate reductase, faʻateleina le chlorophyll content, faʻavaveina le photosynthesis, faʻalauteleina le vaevaega ma le faʻalauteleina o sela laau, faʻaleleia le atinaʻeina o aʻa, ma faʻatonutonu le paleni o meaʻai i le tino.

O le paʻu aʻa o se faʻatonuga o le tuputupu aʻe o laʻau e faʻamalosia le tuputupu aʻe o aʻa.

O lana galuega autu o le fa'aolaina lea o le a'a o la'au, fa'atelevave le tuputupu a'e o a'a o la'au, ma fa'aleleia atili ai le fa'alavelave a le la'au. I le taimi lava e tasi, o le aʻa o le paʻu e fesoasoani foi i le faʻagaoioia o le palapala, tausia le susu o le eleele, ma faʻaleleia le faʻaogaina o meaʻai.