Abscisic Acid Aba

Abscisic acid (ABA) is a plant hormone—not a volatile terpene—that regulates stress responses and developmental processes in cannabis and other plants. Within cannabis cultivation, ABA levels often increase during drought, heat stress, or late flowering stages, influencing resin production and seed maturation timing. While ABA itself is not aromatic, its accumulation during ripening correlates with shifts in cannabinoid and terpene profiles that breeders monitor. Research on plant hormones like ABA remains limited in cannabis specifically, though horticulturists recognize its role in resource allocation during cultivation.

Breeders and cultivators track ABA signaling indirectly through observable ripeness cues—trichome coloration, bract swelling, and senescence patterns—rather than measuring ABA directly. Understanding ABA's role helps inform selective breeding for stress resilience and controlled flowering maturation.