@INPROCEEDINGS {OTOO:2001a, title = {Analysing genotype x environment interaction for sweet potato in Ghana using Additive Main Effects and Multiplicative Interaction Model (AMMI)}, author = {Otoo, J. and Missah, A. and Osei, C. and Carson, A. and Okai, E. and Sagoe, R. }, booktitle = {Akoroda M, Ngeve J, eds. Root crops in the 21st century: proceedings of the Seventh Triennial Symposium of the International Society for Tropical Root Crops (ISTRC) - Africa Branch, Oct 1998; Government of Benin}, year = {2001}, pages = {368--377}, note = {RTB; Root and Tuber; Sweetpotato}, }