In Situ Preservation

In situ preservation refers to the maintenance of cannabis genetic material and terpene profiles within living plants or seed banks in their native or established growing environments, rather than through extraction or laboratory isolation. This approach is primarily used by breeding programs and seed banks to maintain the integrity of volatile aromatic compounds across generations without degradation from processing, storage, or chemical intervention. Breeders working in this category often prioritize cold storage, controlled humidity, and minimal handling to prevent terpene loss or oxidation. The practice is particularly relevant for preserving rare or heritage cultivar lineages where terpene expression serves as a marker of genetic authenticity. In situ methods contrast with ex situ techniques like extraction or distillation, which isolate specific compounds but may alter the original

Breeders use in situ preservation to maintain phenotypic terpene markers when selecting parent plants and creating seed lines. This method is essential for documenting terpene stability across generations and ensuring that breeding records accurately reflect the aromatic profile of a strain family.