A plant hormone involved in abscission, dormancy, stoma tal closure, growth inhibition, and other responses.
ab-SIS-ik AS-id A plant hormone that inhibits growth. 578
A plant hormone, C 15 20, involved in the abscission (shedding) of leaves, flowers, and fruits and the dormancy of buds and seeds. Can cause fruit ripening and has effects on plant water use and moisture retention. See Transplant Performance pages See abscission layer below
A plant hormone that promotes dormancy in perennial plants and causes rapid closure of leaf stomata when a leaf begins to wilt.
Abscisic acid is a plant hormone that inhibits growth, causes the abscission of leaves, induces dormancy, closes stomata, and triggers other phenomena in response to adverse conditions.
Abscisic Acid (ABA), also known as abscisin II and dormin, is a plant hormone.