The plant hormone, Abscisic acid inhibits the growth of the plant.
Auxin, Gibberellins, and cytokinins promote the growth of the plant.
Abscisic Acid (ABA) is involved in the closure of stomata, seeds dormancy, and inhibit other hormonal actions.
It plays an important role in seed maturation.
It also has an important role in the synthesis of proteins and compatible osmolytes, which enable plants to tolerate stresses due to environmental or biotic factors.