Cheryl L. Reese, Department of Agronomy, Horticulture and Plant Science, South Dakota State University, Brookings, SD, David Edward Clay, Department of Agronomy, South Dakota State University, Brookings, SD, Thomas M. DeSutter, School of Natural Resource Sciences, North Dakota State University, Fargo, ND, US, Douglas D. Malo, Plant Science Department, South Dakota State University, Brookings, SD and Sharon A. Clay, Plant Science-Box 2140C, South Dakota State University, Brookings, SD, US