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We conducted two main surveys during dry seasons of 2008 and 2009 in 29 sites within the five pilot zones of the “Programme National de Développement des Racines et Tubercules” (PNDRT)-Cameroon to assess potential changes triggered by the introduction of improved varieties on cassava pest status....


Tindo, M.Njukwe, E.Mbairanodji, A.Tenkouano, A.[Situation actuelle des ravageurs du manioc et les méthodes de lutte au Cameroun.][Current pest status of cassava and their management strategies in Cameroon]Current pest status of cassava and their management strategies in Cameroon

Undersowing sorghum with stylo as a means of improving fodder quality for dry-season grazing of livestock in the subhumid zone of Nigeria was investigated. Planting either Stylosanthes guianeusis cv 'Cook' or S. hamata cv 'Verano' simultaneously with local or improved varieties of sorghum reduced...


Mohamed-Saleem, M.A.[Effect of sowing time on the grain yield and fodder potential of sorghum undersown with stylo in the subhumid zone of Nigeria]Effect of sowing time on the grain yield and fodder potential of sorghum undersown with stylo in the subhumid zone of Nigeria

Purpose – Potato is a major food staple in Africa, but its production is constrained by poor quality of seed. A recent private–public partnership in Tanzania resulted in introduction of new higher yielding varieties. The purpose of this paper is to examine smallholder farmers’ motivations to inve...


Okello, J.J.Lagerkvist, C.J.Kakuhenzire, R.Parker, M.Schulte-Geldermann, Elmar[Combining means-end chain analysis and goal-priming to analyze Tanzanian farmers’ motivations to invest in quality seed of new potato varieties]Combining means-end chain analysis and goal-priming to analyze Tanzanian farmers’ motivations to invest in quality seed of new potato varieties
Gavidia Oneto, AgustínGálvez E., Guillermo E.[Resistencia de quince variedades de arroz (Oryza sativa L.) al virus hoja blanca y al insecto vector (Sogatodes oryzicolus Muir)]Resistencia de quince variedades de arroz (Oryza sativa L.) al virus hoja blanca y al insecto vector (Sogatodes oryzicolus Muir)
Olango, N.Tusiime, GeoffreyMulumba, J.W.Nankya, R.Fadda, CarloJarvis, Devra I.Paparu, P.[Response of Ugandan common bean varieties to Pseudocercospora griseola and Angular leaf spot disease development in varietal mixtures]Response of Ugandan common bean varieties to Pseudocercospora griseola and Angular leaf spot disease development in varietal mixtures
Andrade, M.I.Alvaro, A.Menomussanga, J.Makunde, G.S.Ricardo, J.Gruneberg, W.J.Eyzaguirre, R.Low, J.W.Ortiz, R.['Alisha', 'Anamaria', 'Bie', 'Bita', 'Caelan', 'Ivone', 'Lawrence', 'Margarete', and 'Victoria' sweetpotato.]'Alisha', 'Anamaria', 'Bie', 'Bita', 'Caelan', 'Ivone', 'Lawrence', 'Margarete', and 'Victoria' sweetpotato.
Mengistu, D.K.Kiros, A.Mohammed, J.Tsehaye, Y.Fadda, Carlo[Exploitation of diversity within farmers' durum wheat varieties enhanced the chance of selecting productive, stable and adaptable new varieties to the local climatic conditions]Exploitation of diversity within farmers' durum wheat varieties enhanced the chance of selecting productive, stable and adaptable new varieties to the local climatic conditions

The two years on-farm tillage research during the 1999 and 2000 cropping seasons in Ethiopian highland Vertisol area demonstrated the importance of adapting cultural practices into participatory trials. The minimum tillage package could be an effective intervention for soil conservation due to th...


Astatke, A.Mamo, T.Peden, Donald G.Diedhiou, M.[Participatory on-farm conservation tillage trial in the Ethiopian highland Vertisols: The impact of potassium application on crop yields]Participatory on-farm conservation tillage trial in the Ethiopian highland Vertisols: The impact of potassium application on crop yields
Nowakunda, K.Barekye, A.Ssali, R.T.Namaganda, J.Tushemereirwe, W.K.Nabulya, G.Erima, R.Akankwasa, K.Hilman, E.Batte, M.Karamura, D.[Kiwangaazi (syn 'KABANA 6H') black sigatoka, nematode and banana weevil tolerant 'Matooke' hybrid banana released in Uganda]Kiwangaazi (syn 'KABANA 6H') black sigatoka, nematode and banana weevil tolerant 'Matooke' hybrid banana released in Uganda

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