1. Department of Agricultural Economics, Agribusiness and Extension, Kwame Nkrumah University of Science and Technology, UPO, Kumasi P.O. Box 1279, Ghana
2. International Rice Research Institute, East & Southern Africa Office, Nairobi 00100, Kenya
3. College of Agriculture and Life Sciences, Cornell University, Ithaca, NY 14853, USA
4. Department of Extension and Innovation Studies, Makerere University, Kampala 7062, Uganda
5. CSIR—Crops Research Institute, Kumasi P.O. Box 3785, Ghana
6. Department of Plant Resources Development, College of Science and Technology, Fumesua, Kumasi P.O. Box 3785, Ghana