Zonke i-brassinolides okwangoku kwiimarike zingahlulwa zibe ngamacandelo amabini ukusuka kumbono weteknoloji yokuvelisa: i-brassinolide yendalo kunye ne-synthetic brassinolide.

I-S-abscisic acid ineziphumo zomzimba ezinjengokubangela ukuvuthuza kwamathupha, ukuphalala kwamagqabi kunye nokuthintela ukukhula kweeseli, kwaye ikwabizwa ngokuba "yihomoni eleleyo" ukuwa kwamagqabi esityalo. Nangona kunjalo, ngoku kwaziwa ukuba ukuwa kwamagqabi ezityalo kunye neziqhamo kubangelwa yi-ethylene.

I-Trinexapac-ethyl iyinxalenye ye-cyclohexanedione yokulawula ukukhula kwezityalo, i-gibberellins biosynthesis inhibitor, elawula ukukhula okunamandla kwezityalo ngokunciphisa umxholo we-gibberellins. I-Trinexapac-ethyl inokuthatyathwa ngokukhawuleza kwaye iqhutywe ngeziqu zezityalo kunye namagqabi, kwaye idlala indima echasene nokulala ngokunciphisa ubude bezityalo, ukwandisa amandla e-stem, ukukhuthaza ukwanda kweengcambu zesibini, kunye nokuphuhlisa inkqubo yeengcambu eziphuhliswe kakuhle.

I-Paclobutrazol yi-arhente yezolimo enokunciphisa inzuzo ephezulu yokukhula kwezityalo. Inokufunxwa ziingcambu zesityalo namagqabi, ilawule ukuhanjiswa kwesondlo sezityalo, icothise izinga lokukhula, inqanda ukukhula komphezulu kunye nobude besikhondo, kwaye icuthe umgama ophakathi kwe-internode. Kwangaxeshanye, ikhuthaza ukuhlukana kwentyatyambo, inyusa inani leentyatyambo, inyuse izinga lokumisela iziqhamo, ikhawulezise ukwahlukana kweeseli.