Seed Preservation Testing

Seed preservation testing encompasses a range of methods and protocols breeders and seed banks employ to maintain genetic stability and viability across storage generations. These practices include germination assays, moisture content monitoring, cold storage standardization, and periodic viability checks to ensure stored seeds remain true-to-type and capable of healthy propagation. Testing protocols vary by seed bank standards and regional guidelines, with some following ISTA (International Seed Testing Association) frameworks adapted for cannabis. Proper preservation testing is foundational to responsible seed banking, preventing genetic drift, contamination, and unintended mutations in long-term storage. Understanding these methods helps breeders maintain heirloom lines and establish reliable seed archives for future research and cultivation.

Breeders working with limited seed lots or heritage genetics rely on preservation testing to verify that stored stock remains genetically stable before committing to breeding programs. Accurate viability data allows breeders to make informed decisions about which seed banks and storage conditions best protect their work across multiple growing seasons.