1. Dep. of Soil and Crop Sciences; Colorado State Univ.; Ft. Collins CO 80523
2. Dep. of Bioagricultural Sciences and Pest Management; Colorado State Univ.; Ft. Collins CO 80523
3. Western Colorado Research Station; 3168 B 1/2 Road Grand Junction CO 81503-9621
4. USDA-ARS; Soybean Genomics and Improvement Lab., Beltsville Agricultural Research Center; Beltsville MD 20705-2350