Subcontract agreement for the execution of USAID/SADC/SARRNET grant No. 690-G-00-99-00258-00 between the International Institute for Tropical Agriculture, IITA, and the International Center for Tropical Agriculture, CIAT : II report, period June 2001 to May 2002 - International Institute of Tropical Agriculture; Consorcio Latinoamericano y del Caribe de Apoyo a la Investigación y Desarrollo de la Yuca; Southern Africa Root Crops Research Network; International Center for Tropical Agriculture; International Potato Center; Foodnet (International Center for Tropical Agriculture, 2002)