what is the work of abissisic acid?
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Abscisic acid (ABA) is an important phytohormone regulating plant growth, development, and stress responses.
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Abscisic acid is a plant growth regulator.Its main funtion is in regulation of dormancy and abscission.
It is also called as stress hormone because helps the closure of stomata in the epidermis and increases the tolerance of plants to various kinds of stresses.
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