Understanding cassava varietal preferences through pairwise ranking of and prepared by local farmer-processors.

Within communities in Osun and Imo States of Nigeria, farmer-processors grew and processed a diverse set of improved and landrace cassava varieties into the locally popular foods, , and . Local and 15 main varieties were grown in a 'mother and baby trials' design in each state. Mother trials with three replications were processed by farmer-processors renown in their community for their processing skills.