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.