@ARTICLE {OTOO:2006a, title = {Cultivar evaluation and mega-environment investigation of Dioscorea cayenensis cultivars in Ghana based on the GGE Biplot analysis}, author = {Otoo, E. * and Asiedu, R. }, journal = {Journal of Food, Agriculture and Environment}, year = {2006}, month = {July}, volume = {4}, number = {3&4}, pages = {162--166}, }