Naphthalene acetic acid (NAA) ndi njira yopangira kukula kwa mbewu yomwe ili m'gulu la naphthalene la mankhwala. Ndi mtundu wa crystalline wolimba, wosungunuka m'madzi ndi organic solvents. Naphthalene acetic acid (NAA) imagwiritsidwa ntchito kwambiri poletsa kukula kwa mbewu, makamaka imagwira ntchito yofunika kwambiri pakukula ndikukula kwa mitengo yazipatso, masamba ndi maluwa.

Chlormequat chloride (CCC) ndi mdani wa gibberellins.Ntchito yake yaikulu ndikuletsa biosynthesis ya gibberellins.Ikhoza kulepheretsa kukula kwa selo popanda kusokoneza magawano a maselo, kulepheretsa kukula kwa zimayambira ndi masamba popanda kusokoneza chitukuko cha ziwalo zogonana, potero kukwaniritsa kulamulira. kukulitsa, kukana malo okhala ndikuwonjezera zokolola.

Gibberellic acid (GA3) imatha kulimbikitsa kumera kwa mbewu, kukula kwa mbewu, kuphukira koyambirira ndi kubereka zipatso. Amagwiritsidwa ntchito kwambiri muzomera zosiyanasiyana zazakudya, ndipo amagwiritsidwanso ntchito kwambiri m'zamasamba. Ili ndi mphamvu yolimbikitsira kwambiri pakupanga ndi mtundu wa mbewu ndi ndiwo zamasamba.