@ARTICLE {BADU-APRAKU:2009a, title = {Improvement of yield and other traits of extra-early maize under stress and nonstress environments}, author = {Badu-Apraku, B. and Fakorede, M. and Fontem Lum, A. * and Akinwale, R. }, journal = {Agronomy Journal}, year = {2009}, volume = {101}, pages = {381--389}, issn = {0002-1962}, doi = {10.2134/agronj2008.0089x}, }