1. Dep. of AgronomyTekirdag Agriculture FacultyUniv. of Trakya Tekirdag Turkey
2. USDA‐ARSWheat, Sorghum, and Forage Res. Unit, 344 Keim HallUniv. of Nebraska P.O. Box 830937 Lincoln NE 68507‐0937
3. Center for BiotechnologyUniv. of Nebraska Lincoln NE 68588
4. Dep. of AgronomyUniv. of Nebraska Lincoln NE 68583‐0915