Jeff Gore¹, D. R. Cook¹, Gordon Snodgrass², Angus Catchot³, B. R. Leonard⁴, Scott D. Stewart⁵ and Gus Lorenz⁶, (1)Mississippi State University, Stoneville, MS, (2)Stoneville, MS, (3)Mississippi State University, Mississippi State, MS, (4)LSU AgCenter, Macon Ridge Research Station, Winnsboro, LA, (5)The University of Tennessee, Jackson, TN, (6)University of Arkansas Cooperative Extension Service, Lonoke, AR