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Products and services provided by trees in forests and farmland support the needs and promote the wellbeing of hundreds of millions of people in the tropics. Value depends on managing both the diversity of tree species present in landscapes and the genetic variation within these species. The bene...


Dawson, Ian K.Leakey, R.Clement, C.R.Weber, John C.Cornelius, J.P.Roshetko, J.M.Vinceti, B.Kalinganire, A.Tchoundjeu, Z.Masters, E.Jamnadass, Ramni H.[The management of tree genetic resources and the livelihoods of rural communities in the tropics: non-timber forest products, smallholder agroforestry practices and tree commodity crops]The management of tree genetic resources and the livelihoods of rural communities in the tropics: non-timber forest products, smallholder agroforestry practices and tree commodity crops

This paper examines the hypotheses "The prominence of high-value agricultural enterprises is not only predicated by climatic conditions; market Development plays a significant role", "Market Development has a greater influence on higher-value agricultural enterprises in more favorable zones", "Hi...


Place, FrankKristjanson, Patricia M.Staal, Steven J.Kruska, R.L.Wolff, T. deZomer, Robert J.Njuguna, E.C.[Development pathways in medium to high-potential Kenya: A meso-level analysis of agricultural patterns and determinants]Development pathways in medium to high-potential Kenya: A meso-level analysis of agricultural patterns and determinants

The northern Guinea savanna in Africa (NGS) with a season length of 151–180 days and an altitude below 800 m has long been recognized as highly suitable for crop production and animal husbandry. At present, land use intensity and farming as well as livestock systems vary widely across the zone. S...


Weber, G.Smith, J.Manyong, V.[System dynamics and the defintion of research domains for the northern Guinea Savanna of West Africa]System dynamics and the defintion of research domains for the northern Guinea Savanna of West Africa

The high demand for good quality planting materials of improved cassava (Manihot esculenta Crantz) cultivars by the farmers in sub-Saharan Africa are not fully met in a timely manner. Perishability, slow multiplication rate and bulkiness of planting materials, weak definition of multiplication re...


Ekanayake, I.Asiedu, RobertBieler, P.[Production and delivery systems of good quality cassava planting materials in sub-Saharan Africa]Production and delivery systems of good quality cassava planting materials in sub-Saharan Africa
Anderman, T.L.Remans, R.Wood, S.DeRosa, K.DeFries, R.[Synergies and trade-offs between cash crop production and food security: a case study in rural Ghana]Synergies and trade-offs between cash crop production and food security: a case study in rural Ghana

A comparative analysis of farmers’ preferences on improved cowpea varieties was carried out based on the data obtained from farmers’ participatory varietal selection and questionnaire survey undertaken in south-eastern Niger and north-central Burkina Faso. The grain yield was consistently the mos...


Ishikawa, H.Drabo, I.Boukar, O.Fatokun, C.Muranaka, S.[Comparative analysis of farmers' selection criteria for cowpea (Vigna unguiculata) varieties in Niger and Burkina Faso]Comparative analysis of farmers' selection criteria for cowpea (Vigna unguiculata) varieties in Niger and Burkina Faso
Gebrehiwot, M.Elbakidze, M.Lidestav, G.Sandewal, M.Angelstam, P.Kassa, H.[From self-subsistence farm production to khat: driving forces of change in Ethiopian agroforestry homegardens]From self-subsistence farm production to khat: driving forces of change in Ethiopian agroforestry homegardens

World Bank[ Zambia - Commercial Value Chains in Zambian Agriculture : Do Smallholders Benefit? ]

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