Drought Stress Tolerance

Drought stress tolerance is not a terpene itself, but rather a plant phenotype—a set of observable characteristics—that certain cannabis cultivars express when water availability is limited. This trait involves complex interactions between a plant's genetics, morphology, and secondary metabolism, including terpene production patterns. Some lineages bred in arid or semi-arid regions show reduced wilting, maintained photosynthetic function, and altered volatile compound profiles during water deficit conditions. Breeders working in dry climates have selected for cultivars that preserve vigor and cannabinoid accumulation under restricted irrigation. Understanding drought tolerance requires examining root architecture, leaf surface properties, and metabolic resource allocation—traits often correlated with specific terpene and flavonoid expression.

Cannabis breeders targeting dry-climate cultivation or low-input agricultural systems prioritize drought tolerance as a selection criterion. Cultivars demonstrating maintained terpene complexity and potency under water stress are valuable for sustainable breeding programs and regional adaptation work.