Endogenous hormones like gibberellic acid and abscisic acid affect the flowering and fruiting of Glycyrrhiza uralensis plants. High levels of indoleacetic acid and zeatin riboside help with flower bud formation and seed filling. Low levels of abscisic acid and zeatin riboside are good for flower bud development and seed filling. The levels of these hormones in the plants at different growth stages impact the rates of flower and fruit falling, empty seeds, shrunken grains, and thousand kernel weight.