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JORGE LEÓN is one of the world's foremost experts on Andean agriculture. A native of Costa Rica, he received his Ph.D. in botany from Washington University (under the famed economic botanist Edgar Anderson). He became botanist and head of the Plant Industry Department at IICA in Turrialba, Costa Rica, and then spent seven years heading the Andean Zone Research Program at IICA in Lima, Peru. Subsequently, he was with the FAO in Rome and was for many years chief of FAO's Crop Ecology and Genetic Resources Unit. After leaving FAO he was chief of the Genetic Resource Unit, Centro Agronómica Tropical de Investigación y Enseñanza (CATIE) until his retirement. Dr. León is a fellow of the Linnean Society and author of some 60 technical articles, 5 bulletins, 2 books, and 40 technical missions and consultations. His book Plantas Alimenticias Andinas
is a classic survey of the native crops of the Andes.
LUIS SUMAR KALINOWSKI, Centro de Investigaciones de Cultivos Andinos, Universidad Nacional Técnica del Altiplano, Cuzco, Peru, received his degree of agricultural engineering from the University of Cuzco in 1961. Postgraduate studies were in phytogenics at the National University of Cuzco. From 1964 to 1975, he was associate professor of vegetative therapeutics at the University of Cuzco, while also serving with the Department of Agricultural Development of Cuzco Corporation (a quasi-governmental institution). He was concurrently an instructor at the University of Lima and the National Agricultural University at La Molina during 1974. Since 1975, Dr. Sumar has been a principal professor in the Agriculture Department of the University of Cuzco. He was made head of the department in 1981. Dr. Sumar has been involved with nutrition, pathology, genetic conservation, and plant improvement for many years, and has traveled worldwide as a plant collector and as a consultant. In 1982 he became the only civilian recipient of Peru's Gold Medal of the Order of the Sun, in recognition of his contributions to the nutritional well-being of the poor.
NOEL D. VIETMEYER, staff officer and technical writer for this study, is a senior program officer of the Board on Science and Technology for International Development. A New Zealander with a Ph.D. in organic chemistry from the University of California, Berkeley, he now works on innovations in science and technology that are important for the future of developing countries.