The aim of the project is to improve Ghanaian farmers’ access to a diversity of superior, disease-resistant cassava clones appropriate to the needs of farmers and other end-users, validating for the first time in Africa a participatory approach to breeding a major staple food crop which is propagated primarily vegetatively. A first phase of the project had developed a process whereby farmers and scientists collaboratively selected superior genotypes during a seedling and first clonal generation in communities in Ghana. An early activity of the current phase of the project was to harvest the trials of the second clonal generation. Analysis of data on phenotype and disease resistance of clones selected by farmers’ and scientists’ over all three generations indicated that the project approach to participatory breeding enabled farmers and scientists to work together beneficially.