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In Kenya, smallholder potato farmers endeavor to increase their production through various approaches, most commonly by expanding areas under production and repeatedly planting potato on the same site, with the latter resulting in build-up of diseases. Compounded with limited access to options to...


Atieno, E.Schulte-Geldermann, ElmarParker, M.Kreuse, T.Brenneis, K.Muchoki, J.[Evaluation of adoption potential of modern technologies in potato value chain by smallholder farmers in Kenya: Nyandarua County pilot case study.]Evaluation of adoption potential of modern technologies in potato value chain by smallholder farmers in Kenya: Nyandarua County pilot case study.

Bacterial wilt disease, race 3 biovar 2A, is a devastating disease of potato and other important solanaceous crops, with no chemical control method. The current studies were, therefore, undertaken to assess the efficacy of biocontrol agent (BCA) and organic amendments to manage bacterial wilt (BW...


Aguk, J.A.Karanja, N.Schulte-Geldermann, ElmarBruns, C.Kinyua, Z.Parker, M.[Control of bacterial wilt (Ralstonia solanacearum) in potato (Solanum tuberosum) using rhizobacteria and arbuscular mycorrhiza fungi.]Control of bacterial wilt (Ralstonia solanacearum) in potato (Solanum tuberosum) using rhizobacteria and arbuscular mycorrhiza fungi.

Bacterial wilt caused by Ralstonia solanacearum is considered among the most damaging diseases of potato in Sub-Saharan Africa. In Kenya, majority of farmers visually select and save seed from harvested potato tubers and reuse the same tubers for several seasons. Latently infected seed tubers whi...


Okiro, L.A.Nyanjom, S.G.Parker, M.[Coring method of sampling potato tubers to detect ralstonia solanacearum.]Coring method of sampling potato tubers to detect ralstonia solanacearum.

This book is based on papers presented at the Ninth Triennial African Potato Association Conference, Naivasha, Kenya, 30 June-4 July 2013.The book focuses on the policies for germplasm exchange, food security and trade in Africa, seed systems, breeding and disease management and postharvest manag...


Low, J.W.Nyongesa, M.Quinn, S.Parker, M.[Potato and sweetpotato in Africa: transforming the value chains for food and nutrition security.]Potato and sweetpotato in Africa: transforming the value chains for food and nutrition security.
Demo, P.Lemaga, B.Kakuhenzire, R.Schulz, S.Borus, D.Barker, IanWoldegiorgis, G.Parker, M.Schulte-Geldermann, Elmar[Strategies to improve seed potato quality and supply in sub-Saharan Africa: Experience from interventions in five countries.]Strategies to improve seed potato quality and supply in sub-Saharan Africa: Experience from interventions in five countries.

Bacterial wilt is an important soil borne disease that threatens potato production. It is difficult to control due to the large number of hosts, high genetic and phenotypic variability of the pathogen, systemic localization of the pathogen, and lack of chemical control. Use of antagonistic microo...


Aguk, J.Schulte-Geldermann, ElmarKaranja, K.Kinyua, Z.M.Jefwa, J.M.Parker, M.[Application of rhizobacteria inoculants in biocontrol of Bacterial wilt (Ralstonia solanacearum) in potato (Solaum tuberosum) production.]Application of rhizobacteria inoculants in biocontrol of Bacterial wilt (Ralstonia solanacearum) in potato (Solaum tuberosum) production.

Proietti, C.Wittine, D.Álvarez, S.Parker, M.Schulte-Geldermann, ElmarStoian, D.Karamura, E.B.Thiele, Graham[Co-constructing impact pathways with stakeholders for results-based management]Co-constructing impact pathways with stakeholders for results-based management

Quiróz, R.Harahagazwe, D.Condori, B.Barreda, CarolinaMendiburu, F. deAmele, A.Anthony, D.Atieno, E.Bararyenya, A.Byarugaba, A.A.Demo, P.Guerrero, J.Kowalski, B.Kude, D.A.Lung'aho, C.Mares, V.Mbiri, D.Mulugeta, G.Nasona, B.Ngugi, A.Njeru, J.Ochieng, B.Onditi, J.Parker, M.Randrianaivoarivony, M.Schulte-Geldermann, ElmarTankou, C.M.Woldegiorgis, G.Worku, A.[Potato yield gap analysis in SSA through participatory modeling: Optimizing the value of historical breeding trial data.]Potato yield gap analysis in SSA through participatory modeling: Optimizing the value of historical breeding trial data.

Bacterial wilt (BW) caused by the Ralstonia solanacearum species complex (RSSC) is a serious threat to potato production in Uganda. However, little is known about the extent of the disease and the type of the pathogen strains involved. A nationwide survey was conducted to study BW prevalence and ...


Abdurahman, A.Parker, M.Kreuze, J.F.Elphinstone, J.Struik, P.C.Kigundu, A.Arengo, E.Sharma, K.[Molecular epidemiology of Ralstonia solanacearum species complex strains causing bacterial wilt of potato in Uganda.]Molecular epidemiology of Ralstonia solanacearum species complex strains causing bacterial wilt of potato in Uganda.

Parker, M.Low, J.W.Andrade, M.I.Schulte-Geldermann, ElmarAndrade-Piedra, J.L.[Climate change and seed systems of roots, tubers and bananas: The cases of potato in Kenya and sweetpotato in Mozambique]Climate change and seed systems of roots, tubers and bananas: The cases of potato in Kenya and sweetpotato in Mozambique

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