Michigan Compiled Laws, Chapter 286. Agricultural Industry § 286.71

(a) “Seed” means the seed or propagating materials of cereals, grain crops, vegetable crops, oil crops, fiber crops, forage crops, grasses, legumes, turf species, tuberous crops, and other crops used in agricultural products which are produced or processed for the purpose of being sold, offered or exposed for sale, for planting, sowing or seeding processes within this state.

(b) “Certified seed” means the progeny of foundation, registered or certified seed if designated foundation and plant propagating materials that are so handled as to maintain satisfactory genetic identity and purity and have met certification standards required by this act and have been approved and certified by the director upon the advice of official seed certifying agencies.

(c) “Foundation seed” means seed stocks or plant propagating materials that are increased from breeder or designated foundation seed and are so handled as to most nearly maintain specific genetic identity and purity. Foundation seed, established by designation, shall be that seed designated by the agricultural experiment station together with the legal certifying agency and approved by the director of agriculture.

(d) “Breeder seed” means seed or plant propagating material directly controlled by the originating or, in certain cases, the sponsoring plant breeder or institution, and which provides the source of foundation seed.

(e) “Registered seed” means the progeny of foundation or registered seed or plant propagating material that is so handled as to maintain satisfactory genetic identity and purity and that has been approved and certified by the director of agriculture upon the advice of the official certifying agencies. This class of seed shall be of a quality suitable for the production of certified seed.