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Cao, Q.H.Tang, J.Li, A.Gruneberg, W.J.Huamani, K.Ma, D.[Ploidy level and molecular phylogenic relationship among novel Ipomoea interspecific hybrids.]Ploidy level and molecular phylogenic relationship among novel Ipomoea interspecific hybrids.

Cassava (Manihot esculenta Crantz) is the second most important food crop after rice, the staple in Sierra Leone; it is also the most important root and tuber crop. It is followed by sweet potato (Ipomoea batatas L.), yam (Dioscorea spp.), which forms part of the traditional farming system and ha...


Fomba, S.N.Massaquoi, F.B.Norman, P.E.Samura, A.E.Mansaray, A.Jalloh, A.Dixon, Alfred G.O.Anthony, N.A.Benya, M.T.Fornah, D.S.Sawi, M.K.Sartie, A.M.Onadipe, O.Sanni, L.O.[Current status of root and tuber crops improvement, production and utilization in Sierra Leone]Current status of root and tuber crops improvement, production and utilization in Sierra Leone

These proceedings have been compiled and edited based on the papers presentedat this workshop, dealing with objectives as set by ANSWER members. They contain the information on the progress made during the three years since the members met last time, but more importantly they record the commitmen...


Ramanatha Rao, V.Hermann, M.[Conservation and utilization of sweet potato genetic diversity in Asia: Proceedings of second Asian Network for Sweet Potato Genetic Resources. 3-5November 1999, Bogor, Indonesia]Conservation and utilization of sweet potato genetic diversity in Asia: Proceedings of second Asian Network for Sweet Potato Genetic Resources. 3-5November 1999, Bogor, Indonesia

These proceedings have been compiled and jointly edited by CIP and IPGRI-APO based on the papers presented at this workshop dealing with objectives as set by ANSWER (Asian Network for Sweetpotato Genetic Resources) members. They contain the information on the progress made during the three years ...


Ramanatha Rao, V.Campilan, D.[Exploring the complementarities of in situ and ex situ conservation strategies for asian sweetpotato genetic resources: Proceeding of the 3rd International Workshop of the Asian Network for Sweetpotato Genetic Resources (ANSWER), Denpasar, Bali, Indonesia, 2 - 4 October 2001]Exploring the complementarities of in situ and ex situ conservation strategies for asian sweetpotato genetic resources: Proceeding of the 3rd International Workshop of the Asian Network for Sweetpotato Genetic Resources (ANSWER), Denpasar, Bali, Indonesia, 2 - 4 October 2001

Sweetpotato virus disease (SPVD) causes more than 90 percent yield decline, especially in areas with high disease pressure. In central Uganda region, Ejumula, an SPVD susceptible variety almost disappeared on farmers' fields due to SPVD by fourth implementation year HarvestPlus project in 2010. I...


Namanda, S.Mwanga, R.Mukasa, S.Talengera, D.Musoke, C.Kyalo, G.Ssemakula, G.Magezi, S.Ball, A.-M.Low, J.W.[Sweetpotato virus pathogen-tested planting material of susceptible varieties results in root yield increase in Uganda.]Sweetpotato virus pathogen-tested planting material of susceptible varieties results in root yield increase in Uganda.

Wheatley, Christopher C.Scott, Gregory J.Best, R.Wiersema, S[Métodos para agregar valor a raíces y tubérculos alimenticios: manual para el desarrollo de productos]Métodos para agregar valor a raíces y tubérculos alimenticios: manual para el desarrollo de productos

Anderson, Pamela K.Morales, Francisco José[Whitefly and whitefly-borne viruses in the tropics: building a knowledge base for global action]Whitefly and whitefly-borne viruses in the tropics: building a knowledge base for global action

International Board for Plant Genetic ResourcesInternational Potato CenterAsian Vegetable Research and Development Center[Descriptores de la batata]Descriptores de la batata

This minimum list consists of an initial set of characterization and evaluation descriptors for sweet potato utilization. This strategic set of descriptors, together with passport data, will become the basis for the global accession level information portal being developed by Bioversity Internat...


Bioversity InternationalInternational Potato Center[Key access and utilization descriptors for sweet potato genetic resources]Key access and utilization descriptors for sweet potato genetic resources

A study compared the spread of sweet potato virus disease (SPVD) into crops of two moderately resistant and initially SPVD-free sweet potato cultivars in northern and southern Mpigi, Uganda. Whiteflies, the vector of sweet potato chlorotic stunt crini virus (SPCSV), a component cause of SPVD, wer...


Aritua, ValentineLegg, J.P.Smit, N.E.Gibson, R.W.[Effect of local inoculum on the spread of sweetpotato virus disease: limited infection of susceptible cultivars following widespread cultivation of a resistant sweetpotato cultivar]Effect of local inoculum on the spread of sweetpotato virus disease: limited infection of susceptible cultivars following widespread cultivation of a resistant sweetpotato cultivar

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