University of Ghana - West Africa Centre for Crop Improvement, CSIR-Crops Research Institute, Kumasi, Institut de l’Environnement et de Recherches Agricoles (INERA), CSIR-Crops Research Institute, Kumasi, University of Ghana - West Africa Centre for Crop Improvement, CSIR-Crops Research Institute, Kumasi, University of Montpellier - CHU Montpellier, University of Montpellier - CHU Montpellier, University of Montpellier - CHU Montpellier, University of Montpellier - CHU Montpellier, University of Montpellier - CHU Montpellier, Institut de l’Environnement et de Recherches Agricoles (INERA), University of Ghana - West Africa Centre for Crop Improvement, University of Ghana - West Africa Centre for Crop Improvement and University of Montpellier - CHU Montpellier

University for Development Studies - Department of Crop Science, University of Ghana - West Africa Centre for Crop Improvement, University of Ghana - West Africa Centre for Crop Improvement, University of Ghana - West Africa Centre for Crop Improvement, University of Ghana - West Africa Centre for Crop Improvement and Cocoa Research Institute of Ghana