Scott D. Stewart, The University of Tennessee, West TN Research and Education Center, 605 Airways Blvd., Jackson, TN 38301, Gus M. Lorenz, Univ. of Arkansas CES, P.O. Box 391, 2301 S. University Ave., Little Rock, AR 72203, Angus Catchot, Mississippi State University, Clay Lyle Bldg., Mississippi State, MS 39762, B. R. Leonard, LSU AgCenter, Macon Ridge Station, 212 Macon Ridge, Winnsboro, LA 71295, and Jeff Gore, USDA, ARS, SIMRU, USDA, ARS, SIMRU, P.O. Box 346, Stoneville, MS 38776.