Gibberellin Metabolism

Gibberellin metabolism refers to the plant's biochemical processes for producing and regulating gibberellins, a class of plant hormones that influence cell elongation, stem growth, and flowering timing. In cannabis breeding, gibberellin pathways affect plant architecture, internodal spacing, and reproductive development. Breeders working in this category observe that gibberellin regulation can influence whether plants express compact or elongated phenotypes, alongside effects on flowering initiation. Understanding gibberellin metabolism helps explain heritable variation in plant structure across cultivar lineages. This metabolic pathway is distinct from terpene production but remains relevant to overall plant physiology and breeding objectives.

Breeders selecting for specific plant structures—compact growth, early flowering, or tall stretch—indirectly select for gibberellin metabolism variants. Gibberellin-responsive genes are targets in breeding programs aimed at controlling plant morphology and developmental timing without chemical growth regulators.