Esele, J.P.E.2007-11-131984-04-012007-11-131984IDRC-218ehttp://hdl.handle.net/10625/17954Meeting: Crop Improvement in Eastern and Southern Africa : Research Objectives and On-Farm Testing, 20-22 July 1983, Nairobi, KEIn IDL-6874p. 14-18application/pdfenBook Chapter