1. African Centre for Crop Improvement, University of KwaZulu-Natal, School of Agricultural, Earth and Environmental Sciences, Pietermaritzburg, South Africa
2. Institute of Environmental and Agriculture Research, Ouagadougou, Burkina Faso
3. Tumbi Agriculture Research Institute, Tabora, Tanzania
4. International Crop Research Institute for Semi-Arid Tropics, Patancheru, India