Linked from
The 10 pages that link to Abscisic acid, each with the reason it gives.
StomataRelated: Drought-triggered abscisic acid signaling prompts guard cells to close stomata.
Drought stressRelated: Roots and leaves use this hormone to trigger stomatal closure during drying.
GibberellinCompared with: It often maintains seed dormancy where gibberellin promotes germination.
Seed developmentRelated: Its signaling helps establish dormancy and resistance to drying.