Study carried out at locations in Kenya, Uganda and Burundi. "This study was financed through the IITA [Bundesministerium für wirtschaftliche Zusammenarbeit und Entwicklung] project: 'Banana tissue culture: community dissemination pathways for delivery of high quality planting material to create markets for African farmers' with funds provided by the German Federal Ministry for Economic Cooperation and Development (BMZ)"--Title page. Originally presented as the author's thesis (doctoral)--Universität Hohenheim. Includes bibliographical references (pages 158-164).
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