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Autor: Nweke, F.I.

COSCA was initiated through the realization that the potentials of cassava depends on availability of more detailed and reliable information on the cassava crop. The general objective of COSCA is therefore to improve the relevance and impact of agricultural research on cassava by International Ag...


Nweke, F.I.[Collaborative Study of Cassava in Africa (COSCA); project description: COSCA working paper, No. 1]Collaborative Study of Cassava in Africa (COSCA); project description: COSCA working paper, No. 1

This paper describes the methods of site selection used for a village-level survey which comprised the first phase of the Collaborative Study of Cassava in Africa (COSCA). Potential survey regions are defined using spatial data which describe ecological conditions, human population densities, acc...


Carter, S.E.Jones, P.G.[Collaborative Study of Cassava in Africa (COSCA); site selection procedure: COSCA working paper, No. 2]Collaborative Study of Cassava in Africa (COSCA); site selection procedure: COSCA working paper, No. 2

Background information is given on the Paraguayan cassava project, which aims at increasing cassava production and productivity through the use of improved technology while improving the living standards of cassava growers in Caaguazu and Paraguari. Different information retrieval procedures were...

Se dan los antecedentes del proyecto de yuca en Paraguay, el cual esta orientado hacia el aumento de la produccion y productividad de la yuca mediante el uso de tecnologia mejorada, al mismo tiempo que mejora las condiciones de vida de los cultivadores de yuca en Caaguazu y Paraguari. Se usaron d...


Llamas G., P.A. de[El proceso de diagnostico en el proyecto mandioca del Paraguay]El proceso de diagnostico en el proyecto mandioca del Paraguay

The methodology, based on the principle research-action, used to understand the social reality of small-scale cassava farmers in Guapira (Bahia, Brazil) is described. Specific objectives were to identify the main problems of the community under study, available production factors, and research pr...

Se describe la metodologia, basada en el principio investigacion-accion, utilizada para comprender la realidad social de cultivadores de yuca en pequena escala en Guapira (Bahia, Brasil). Los objetivos especificos fueron identificar los principales problemas de la comunidad en estudio, los factor...


Sena, M. de G.C. de[Diagnostico de una comunidad rural de pequenos agricultores]Diagnostico de una comunidad rural de pequenos agricultores

Kalenzi, Deus[Potential clusters for joint village land use planning in Kiteto, Kilindi, Mvomero and Chalinze landscape]Potential clusters for joint village land use planning in Kiteto, Kilindi, Mvomero and Chalinze landscape

In this paper authors discuss how to adapt the methodology of wild plant ecogeographic studies when dealing with cultivated species. They show that the model presented by Maxted et al. 1995), with a few changes in emphasis and detail, proves robust enough to be applied to crops. Particular focus ...


Guarino, LuigiMaxted, N.Chiwona, E.A.[A methodological model for ecogeographic surveys of crops]A methodological model for ecogeographic surveys of crops

Intra-household surveys permit us to recognize the individual preferences and perceptions of different household members. They also allow us to analyze gender gaps, bargaining power and empowerment. However, having multiple responses complicates household level analysis such as estimating agricul...


Muriel, JulianaTwyman, JenniferChavarro, Mónica J.[Analyzing multiple household responses: Adoption of CSA practices]Analyzing multiple household responses: Adoption of CSA practices

In 2011, CCAFS carried out baseline surveys (household survey, a village study and an organizational survey) in 21 research sites across 17 countries within its five focus regions, using standardized baseline tools in each site. Seven years after the implementation of the baseline studies, the CC...


Ouédraogo, MathieuHouessionon, ProsperCramer, LauraPartey, SamuelZougmoré, Robert B.Thornton, Philip K.Jasaw, Godfred S.Buah, SaakaRiba, AlexBarahona, Carlos[CCAFS midline synthesis – Ghana. Assessment of changes at household, village and organization levels since the 2011 CCAFS baseline surveys]CCAFS midline synthesis – Ghana. Assessment of changes at household, village and organization levels since the 2011 CCAFS baseline surveys

Root necrosis similar to those of the cassava brown streak disease (CBSD) were observed on cassava in western provinces of the Democratic Republic of Congo (DR.Congo) in the early 2000’s. However molecular laboratory diagnosis were not able to detect any causative agent responsible for the attack...


Bakelana, Z.Magembe, E.Laura, M.B.Macharia, M.Mahungu, N.Tata-Hangy, W.Lutete, D.Monde, G.Harvey, J.Ndunguru, J.Kayuki, C.Pita, J.Lema, K.M.Kanana, T.[Attempts to identify Cassava Brown Streak Virus in western Democratic Republic of Congo]Attempts to identify Cassava Brown Streak Virus in western Democratic Republic of Congo

Wijk, Mark T. vanÁlvarez, CristinaAnupama, GuvvalaArnaud, ElizabethAzzarri, CarloBurra, Dharani DharCaracciolo, FrancescoCoomes, DavidGarbero, AlessandraGotor, ElisabettaHeckert, JessicaJohnson, Nancy L.Kim, SoonhoMiro, BertaMuliro, JacquelineShikuku, Kelvin MashisiaTyszler, MarceloValdivia, RobertoViviani, SaraVrolijk, HansKruseman, Gideon K.[Towards a core approach for cross-sectional farm household survey data collection: a tiered setup for quantifying key farm and livelihood indicators]Towards a core approach for cross-sectional farm household survey data collection: a tiered setup for quantifying key farm and livelihood indicators

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