1. University of Nebraska-Lincoln, Agronomy, 1426 N 34TH ST APT 1, 1, 1426 N 34TH ST APT 1, Lincoln, Nebraska, United States, 68503, ;
2. Kansas State University, Agronomy, 2004 throckmorton, Department of Agronomy, KSU, 2004 throckmorton, Manhattan, Kansas, United States, 66506, ;
3. Kansas State University, Department of Agronomy, 3722 Throckmorton Plant Sciences Center, Kansas State University, Manhattan, Kansas, United States, 66506, ;
4. University of Nebraska, 279 Plant Sci. Hall, UNL, Lincoln, Nebraska, United States, 68583;