Seed stock produced from breeder seed by or under the direct control of an agricultural experiment station. Foundation seed is the source of certified seed, either directly or through registered seed organizations.
The progeny of breeder's select, or foundation seed handled to maintain specific genetic purity and identity. The production must be acceptable to a certifying agency. It is primary source of seed of a genetically identified variety from which all further increase are made.
Seed stock handled to most nearly maintain specific genetic identity and purity under supervised or approved production methods certified by the agency.
The progeny of breeder's seed and the first major increase of seed of an improved strain or variety, handled so as to maintain its superior genetic qualities.
produced from the original seed of a particular variety (breeder's seed) and maintained by companies or state agricultural agencies.
The earliest (or highest) certified generation of seed available to producers for cultivar seed production. Breeder seed is planted to produce foundation seed, making foundation seed the first-generation progeny.