Seed production is one of the least visible yet most important aspects of food and feed production. This part of the system is often taken for granted, even by the farmers who plant the seed. One of the reasons is that much of the seed in the United States is provided by the private sector, particularly for corn and soybean. Also, seed production is a technical process that requires in-depth knowledge of the reproductive mechanisms in plants.
Union of Concerned Scientists
Lamkey, Kendall, "Seed production in corn and soybean" (2004). Agronomy Reports. 4.