New public-sector-bred root, tuber and banana varieties have not been adopted by farmers as expected, particularly in Sub-Saharan-Africa. In the context of a multi-crop, multi-country project that aimed at fostering an interdisciplinary approach for program design and management, the paper authors harvested outcome narratives from one-on-one interviews, focus group discussions and breeding-program documentation to assess how the overarching project theory was at play in different organisational settings.
