Breeder seed (no tag color designation) is that limited amount of seed directly controlled by the plant breeder or institution.
Foundation seed (white tag) is the progeny of breeder seed that is maintained and increased (KY Foundation Seed Project) to insure specific genetic purity and identity.
Registered seed is usually the progeny of Breeder or Foundation seed that is planted or increased by seedsmen to produce Certified seed.
Certified seed is usually the progeny of Foundation or Registered seed, and is generally sold to and planted by the farmer.
GENERAL SEED CERTIFICATION
STANDARDS FOR KENTUCKY
S M A L L G R A I N S
Wheat, Barley, Oats and Rye
S O Y B E A N S
H Y B R I D C O R N
Forage and Syrup Sorghums
Tobacco -Standard & Hybrid Variety Standards