South Dakota has long been one of the leading states in the production of alfalfa seed. South Dakota alfalfa seed, along with that grown in neighboring states, has commanded premium prices in eastern markets because of its winter-hardy characteristics. This Northern alfalfa seed, predominantly a non-certified seed, has recently come into competition with certified alfalfa seed grown in such western states as California and Washington. This competition has resulted in a continuing decline in the demand for Northern alfalfa seed in the eastern markets. Accordingly, lower prices have been received by the South Dakota grower for his seed crop. This marketing problem has prompted research investigations in alfalfa seed production and marketing...