Morakinyo A. Fakorede¹, Abimbola Oluwaranti², Baffour Badu-Apraku³ and Abebe Menkir³, (1)Obafemi Awolowo University, ILE-IFE, Nigeria, (2)Department of Crop Production & Protection, Obafemi Awolowo University, ILE-IFE, Nigeria, (3)Maize Program, IITA, IBADAN, Nigeria