Mankhwala anayi oletsa kukula, Paclobutrazol, Uniconazole, Chlormequat Chloride, ndi Mepiquat chloride, onse amalamulira kukula kwa zomera mu nthawi yochepa poletsa kaphatikizidwe ka Gibberellic acid mu zomera. Ine

Paclobutrazole (Paclo) amagwiritsidwa ntchito mu mbewu zosiyanasiyana monga mpunga, tirigu, masamba, ndi mitengo ya zipatso. Paclobutrazole (Paclo) ndi cholepheretsa kukula kwa mbewu. Iwo akhoza ziletsa kaphatikizidwe amkati gibberellins mu zomera ndi kuchepetsa magawano ndi elongation wa maselo zomera.

Compound sodium nitrophenolate (Atonik) ndiwowongolera bwino kukula kwa mbewu. Imakhala ndi magwiridwe antchito apamwamba, osawopsa, osatsalira, komanso kugwiritsa ntchito mosiyanasiyana. Imatchedwa "Green Food Engineering Recommended Plant Growth Regulator" ndi International Food and Agriculture Organisation. palibe zotsatira zoyipa kwa anthu ndi nyama.

Thidiazuron (TDZ) ndi mchere makamaka wopangidwa ndi potassium dihydrogen phosphate ndi thiadiazuron. Zili ndi zotsatira zambiri pakukula ndi kukula kwa mitengo ya zipatso: kuchulukitsa zokolola, kupititsa patsogolo khalidwe, kupititsa patsogolo kukana matenda, etc. Thidiazuron (TDZ) ikhoza kulimbikitsa photosynthesis, kupititsa patsogolo kugwiritsa ntchito zakudya za zomera, kuonjezera chiwerengero cha maluwa ndi khalidwe la zipatso.