@INPROCEEDINGS {OKONKWO:2004b, title = {Farmer participatory clonal selection of Water Yam (Dioscorea alata) in West Africa}, author = {Okonkwo, C. and Dossou, R. * and Zoupoya, K. and N'kpenu, E. and Otoo, E. * and Alhassan, A. Y. and Echekwu, C. A. and Asiedu, R. }, booktitle = {9th Triennial Symposium of the Internaitonal Society for Tropical Root Crops-Africa Branch (ISTRC-AB); October 31 to November 5, 2004, Mombasa, Kenya}, year = {2004}, note = {RTB; Root and Tuber; Yam}, }