1. Dep. of Agronomy, 2004 Throckmorton Plant Sciences Center Kansas State Univ. Manhattan KS 66506
2. Kansas State Univ. Northwest Research‐Extension Center 105 Experiment Farm Road Colby KS 67701
3. USDA‐ARS Plant Stress and Germplasm Development Unit 3810 4th Street Lubbock TX 79415
4. Texas A&M AgriLife Research 6500 W. Amarillo Boulevard Amarillo TX 79106
5. Dep. of Agronomy, 1569 Agronomy Hall Iowa State Univ. Ames IA 50011