It promotes seed dormancy and ensures seed germination during favourable conditions. Abscisic acid is referred to as stress hormone as it causes different plant responses acting against stress conditions. Abscisic acid is called stress hormones as it induces various responses in plants against stress conditions. When a plant is in stress due to climatic extremities like excess heat or cold or any other reasons, it produces ABA (Abscisic Acid) hormone. This hormone helps the plant to cope with the changing situation and reduces the stress. For this reason, ABA is known as stress hormone. Abscisic acid is known as stress hormone because It produces plants from adsorbe condition like water stress . Since during adverse draught condition the abscisic acid initiates the closure of stomata their by reducing the water loss… It facilitates the seed dormancy and ensures seed germinates under favourable circumstances. It increases tolerence of plant to various type of stress. It also causes the closing of stomata when there is a drought. Abscisic acid is called stress hormones as it induces various responses in plants against stress conditions. It promotes bud dormancy, seed dormancy and abcission. It increases the tolerance of plants toward various stresses. They are also critical in withstanding desiccation. It induces the closure of the stomata during water stress. 0 Thank You The abscisic acid is also called as the stress hormone. It promotes seed dormancy and ensures seed germination during favourable conditions. It induces the closure of the stomata during water stress. It increases the tolerance of plants toward various stresses.