1. Department of Crop and Soil Sciences, Faculty of Agriculture Education, University of Education, Winneba (UEW), College of Agriculture Education, Mampong-Ashanti, Ghana
2. Crop and Soil Sciences Department, Faculty of Agriculture, University of Science and Technology (KNUST), Kumasi, Ghana
3. Department of Agronomy, Faculty of Agriculture, University for Development Studies (UDS), Tamale, Ghana
4. Department of Horticulture and Crop Production. School of Agriculture and Technology, University of Energy and Natural Resources (UENR), Dormaa Ahenkro, Ghana
5. Crop Research Institute (CRI), Council for Scientific and Industrial Research (CSIR), Kumasi, Ghana
6. Cocoa Research Institute of Ghana (CRIG), Tafo-Akim, Ghana
7. Faculty of Agriculture, Department of Plant Protection, Akdeniz University, Antalya, Turkey