Seed Preservation

Seed preservation refers to techniques and protocols for maintaining cannabis seed viability over extended periods. Proper storage conditions—including controlled temperature, humidity, and light exclusion—are critical for preventing germination loss and genetic degradation. Seeds stored at cool temperatures (32–41°F) with low relative humidity (5–10%) typically retain viability longer than those exposed to fluctuating environmental conditions. Breeders and seed banks employ preservation methods ranging from simple cool-dark storage to sophisticated cryogenic freezing for long-term germplasm conservation. Understanding seed dormancy, moisture content, and oxygen exposure helps maintain the genetic integrity of cultivars across breeding cycles.

Breeders rely on seed preservation to maintain stable germplasm libraries, ensure consistent parental stock availability between seasons, and protect rare or heritage lineages from loss. Proper preservation protocols enable multi-year breeding programs and support backcrossing efforts without genetic drift.