Carlos A. Blanco¹, Craig Abel¹, Ibrahim Ali², J. R. Bradley³, Roger Leonard⁴, Juan Lopez⁵, Randall Luttrell², William Moar⁶, Greg Payne⁷, Sakuntala Sivasupramaniam⁸, Richard Sprenkel⁹, Nicholas Storer¹⁰, Phillip Roberts¹¹, John Ruberson¹¹, and Antonio P. Teran¹². (1) USDA-ARS, 141 Experiment Station Road, Stoneville, MS 38776, (2) University of Arkansas - Fayetteville, 2601 N. Young Ave, Fayetteville, AR 72704, (3) North Carolina State University, Box 7630, Raleigh, NC 27695, (4) Louisiana State University, 212 Macon Ridge Road, Winnsboro, LA 71295, (5) Southern Plains Agricultural Research Center, 2771 F&B Road, College Station, TX 77845, (6) Auburn University, 301 Funchess Hall, Auburn, AL 36849, (7) State University of West Georgia, 1601 Maple Street, Carrollton, GA 30118, (8) Monsanto, 700 Chesterfield Parkway N., Saint Louis, MO 63198, (9) University of Florida, 155 Research Road, Quincy, FL 32351, (10) Dow AgroSciences, 9330 Zionsville Road, Indianapolis, IN 46268, (11) University of Georgia, PO Box 1209, Tifton, GA 31793, (12) INIFAP, Campo Agricola Experimental Sur de Tamaulipas, Ciudad Cuauhtemoc, Tamaulipas, 89417, Mexico