“Certification of seed on the basis of varietal purity only, referring to a type of seed certification that certifies seed as to genetic purity without specific criteria for purity, germination, and other aspects of mechanical seed quality.”

References

Copeland, L.O., McDonald, M.B., 1999. Principles of Seed Science and Technology. Springer US, Boston, MA. https://doi.org/10.1007/978-1-4615-1783-2