What is abscisic acid?

Answer 1

Abscisic acid is a plant hormone that is responsible for dormancy and the inhibition of growth, among other processes in plant development. When it was first discovered and tested, abscisic acid was thought to play a role in abscission, or the shedding of the plant's leaves or fruit. This is part of how the hormone got its name, although most scientists no longer believe that abscisic acid has that function. This hormone may also be produced at certain times by a plant under stress, which may occur in situations such as a lack of water.

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Answer 2

This plant hormone was originally believed to play an important part of the bud growth process in plants. From the Latin, abscission as in the geometry of points.

Of use in developing 'sprout suppression' in seeds. Or of developing chemicals to promote root growth in plants.