Tom Barber¹, Charles H. Burmester², C. Dale Monks³, D.M. Dodds⁴, S. M. Brown⁵, D. Wright⁶, Bob Hutmacher⁷, A. M. Stewart⁸, K. L. Edmisten⁹, J. C. Banks¹⁰, Mike A. Jones¹¹, Christopher Main¹², R. K Boman¹³, Robert G. Lemon¹³, J. Faircloth¹⁴, Randall Norton¹⁵, and S. Duncan¹⁶. (1) Division of Agriculture, University of Arkansas, 2301 S. University Ave., Little Rock, AR 72203, (2) Auburn University, P.O. Box 159, Belle Mina, AL 35615, (3) Auburn University, 108 Extension Hall, Auburn University, AL 36849, (4) Mississippi State University, 117 Dorman Hall, Box 9555, Mississippi State, MS 39762, (5) Department of Crop and Soil Sciences, The University of Georgia, PO Box 1209, 15 RDC Road, Tifton, GA 31794, (6) University of Florida, 155 Research Rd., Quincy, FL 32351, (7) University of California, 17053 N. Shafter Ave., Shafter, CA 93263, (8) LSU AgCenter, Dean Lee Research Station, 8105 Tom Bowman Drive, Alexandria, LA 71302, (9) North Carolina State University, Campus Box 7620, Raleigh, NC 27695-7620, (10) Oklahoma Cooperative Extension, 16721 US Hwy 283, Altus, OK 73521, (11) Clemson University, Pee Dee Research and Education Center, 2200 Pocket Rd., Florence, SC 29506, (12) University of Tennessee, 605 Airways Blvd., Jackson, TN 38301, (13) Texas Cooperative Extension, 1102 E. FM 1294, Lubbock, TX 79403, (14) Virginia Polytechnic Institute and State University, Tidewater Ag. Research and Ext. Center, 6321 Holland Rd., Suffolk, VA 23437, (15) University of Arizona, Safford Agricultural Center, 2134 S. Montierth Lane, Safford, AZ 85546, (16) Kansas State University, 2004 Throckmorton, Plant Sciences Center, Manhattan, KS 66506