Book excerpt: Toward a new institutional model of farmer participation in research on natural resource management and germplasm improvement; Developing a natural resource management technology for a specific agroenvironment: Mucuna-maize rotation on the hillsides of northern honduras; Land use systems and dynamics in Pucallpa, Peru; Strategic systems research for the Latin American Savannas; Developing improved pasture systems for forest margins; Adapting participatory research methods for developing integrated crop management for cassava-based systems Northeast Brazil; Soil conservation strategies that take into account farmer perspectives; Developing sustainable cassava production systems with farmers in Asia; Developing forage tecnologies with smallholders in East Kalimantan, Indonesia; Farmer's independent experimentation with green manure and/or cover crops: A component of participatory research for improving Ugandan Farming Systems; Designing sustainable, commercial, farmer seed production systems in Africa: Case studies From Uganda; Institucional Innovation as an entry for system-level technological change; Participatory sysems research toward the future.