BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Abscisic acid (ABA) reversibly arrests embryo development at the brink of radicle growth initiation, inhibiting the water uptake which accompanies embryo growth. Seeds which have been kept dormant by ABA for several days will, after removal of the hormone, rapidly take up water and continue the germination process.

Detailed explanation-2: -However, abscisic acid (ABA) is the only hormone known to induce and maintain seed dormancy.

Detailed explanation-3: -Abstract. The addition of abscisic acid (ABA) to mature non-dormant seeds inhibits their germination. This effect of ABA might be related to its natural function as an endogenous inhibitor of precocious germination during seed formation.

Detailed explanation-4: -Prevention of the Onset of Seed Dormancy by Gibberellic Acid.

Detailed explanation-5: -It has an essential role in multiple physiological processes of plants, such as stomatal closure, cuticular wax accumulation, leaf senescence, bud dormancy, seed germination, osmotic regulation, and growth inhibition among many others.