Soutonnoma Zara Nikiema, Plant Breeding Unit, WACCI (West African Center for Crop Improvement), Accra, Ghana, Morakinyo Abiodun Bamidele Fakorede, Department of Crop Production & Protection, Faculty of Agriculture, Obafemi Awolowo University, Ile-Ife, NIGERIA, Vernon Gracen, Crop Science, University of Ghana, ACCRA, Ghana, S K Offei, College of Basic and Applied Sciences, West Africa Centre for Crop Improvement, University of Ghana, Accra, Ghana and Bernard Pangirayi Tongoona, College of Basic and Applied Sciences, West Africa Centre for Crop Improvement (WACCI),, Accra, Ghana