@INPROCEEDINGS {OKECHUKWU:2004b, title = {Genetic gain in cassava disease resistance}, author = {Okechukwu, R. and Mkumbira, J. and Dixon, A. and Kamara, A. }, booktitle = {Book of Abstracts of the 9th Triennial Symposium of the International Society for Tropical Root Crops-Africa Branch, 31 October-5 November 2004, Mombasa, Kenya}, year = {2004}, note = {RTB; Root and Tuber; Cassava}, }