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Participatory plant breeding PPB is a relatively new approach to germplasm development. Overview summaries of cases to date show that most PPB programs were begun within the last 10 years, whether located in public-sector or nongovemment NGO crop-improvement programs. Some have argued that commer...


Sperling, L.Ashby, J.A.Smith, Margaret E.Weltzien, EvaMcGuire, Shawn[Participatory plant breeding: A framework for analyzing diverse approaches]Participatory plant breeding: A framework for analyzing diverse approaches

Harrington, Larry W.Jones, Peter G.Winograd, Manuel[Operationalizing sustainability: a total productivity approach]Operationalizing sustainability: a total productivity approach

Hadgu, KirosTamene, Lulseged[CGIAR Research Program on Water, Land and Ecosystems (WLE)]CGIAR Research Program on Water, Land and Ecosystems (WLE)

The savannas of eastern Colombia located in the Orinoco river basin represent 18% of the Latin American neotropical savannas, and those areas that are tillable and closer to markets are subject to considerable anthropic pressure in the quest for intensification. Historically, and even today, beef...


Ramírez Restrepo, Carlos A.Vera, Raúl R.Rao, Idupulapati M.[Dynamics of animal performance, and estimation of carbon footprint of two breeding herds grazing native neotropical savannas in eastern Colombia]Dynamics of animal performance, and estimation of carbon footprint of two breeding herds grazing native neotropical savannas in eastern Colombia

Winograd, ManuelFarrow, AndrewAguilar, M.Clavijo, L.A.Debouck, Daniel G.Jones, Peter G.Hyman, GlennLema, GNelson, A.N.Holmann, Federico J.Tohme, Joseph M.Toro Chica, OrlandoVoysest Voysest, Oswaldo[Agroecosystem assessment for Latin America: agriculture extent, production systems and agrobiodiversity]Agroecosystem assessment for Latin America: agriculture extent, production systems and agrobiodiversity

Santos E, JT[Asociacion de Brachiaria humidicola con Desmodium ovalifolium bajo pastoreo alterno con cargas fijas en sabana bien drenada hipertermica]Asociacion de Brachiaria humidicola con Desmodium ovalifolium bajo pastoreo alterno con cargas fijas en sabana bien drenada hipertermica
Autor: Robison, DM

Over a period of four weeks a survey was conducted with cooperation of CNPAF and EMAPA (Empresa Maranhense de Pesquisa Agropecuaria). We spent 23 days in the field, travelled 7000 km and surveyed 44 rice producing communities spread though different Agroecological zones in the state. In each comm...


Robison, DM[Trip report : rapid rural appraisal in Maranhao Brazil to classify small farmer rice agroecosystems, Jan. 16-Feb. 13, 1990]Trip report : rapid rural appraisal in Maranhao Brazil to classify small farmer rice agroecosystems, Jan. 16-Feb. 13, 1990

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