Sunday, August 30, 2015

12. Abscisic Acid


  • A plant hormone that promotes leaf detachment, induces seed and bud dormancy, and inhibits germination. Its role in the abscission of plant leaves. In preparation for winter, ABA is produced in terminal buds. This slows plant growth and directs leaf primordia to develop scales to protect the dormant buds during the cold season.

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