Desiccation Sensitivity

Desiccation sensitivity refers to the degree to which cannabis seeds or plant tissues lose viability when exposed to low-moisture conditions. Seeds with high desiccation sensitivity cannot tolerate rapid or extended drying, whereas desiccation-tolerant seeds maintain germination rates across wider storage humidity ranges. This trait is influenced by seed coat structure, maternal lineage, and environmental conditions during seed maturation. Understanding desiccation sensitivity is critical for seed banks, breeders, and preservation programs seeking to maintain genetic stability across generations. The phenomenon is often observed in tropical or equatorial-origin landraces, where seeds evolved in consistently humid environments.

Breeders intentionally select for desiccation tolerance when developing seeds intended for long-term storage or diverse climatic applications. Conversely, breeders working with heritage or tropical genetics may preserve desiccation-sensitive traits as markers of authentic lineage, requiring specialized storage protocols to maintain seed longevity.