1. USDA‐ARS, Tropical Agriculture Research Station2200 Pedro Albizu Campos AvenueMayaguezPuerto Rico00680
2. USDA‐ARS, Southern Plains Agriculture Research Center2881 F & B RoadCollege StationTX77845
3. Advanced Plant Technology Program, Clemson Univ.ClemsonSC29634
4. USDA‐ARS, Crop Genetics and Breeding Research115 Coastal WayTiftonGA31793