I-Gibberellic acid (GA3) iyisilawuli sokukhula kwezitshalo.Ngokuyinhloko isetshenziselwa ukukhuthaza ukukhula nokuthuthukiswa kwezitshalo, ukuvuthwa kusenesikhathi, ukuthuthukisa ukukhiqizwa, ukuphula i-dormancy yembewu, izilimo eziyizigaxa, ama-bulb nezinye izitho, ukukhuthaza ukuhluma, i-tillering, i-bolting, nokuthuthukisa izinga lokuthela izithelo.Isebenza kahle kakhulu ekuxazululeni inkinga yokuqhakaza okungajwayelekile ekukhiqizeni imbewu yerayisi eyi-hybrid.Isetshenziswa kakhulu ukotini, amagilebhisi, amazambane, izithelo nemifino.