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Autor: Kosgey, I.S.

Small ruminants (i.e., sheep and goats) are widespread in the tropics and are important to the subsistence, economic and social livelihoods of a large human population in these areas. The aim of this thesis was to identify the breeding objectives for tropical small ruminants, and to develop appro...


Kosgey, I.S.[Breeding objectives and breeding strategies for small ruminants in the tropics.]Breeding objectives and breeding strategies for small ruminants in the tropics.

Yams (Dioscorea spp., Dioscoreaceae), grown either for their starchy tubers or medicinal properties, are important crops in the tropics and subtropics. Yams broaden the food base and provide food security and income to over 300 million people. They are vegetatively propagated and comprise both di...


Mignouna, H.D.Abang, Mathew M.Asiedu, Robert[Genomics of yams, a common source of food and medicine in the tropics]Genomics of yams, a common source of food and medicine in the tropics
Autor: Kahi, A.K.

Tsetse-transmitted trypanosomosis poses severe constraints to livestock productivity in sub-Saharan Africa, affecting large areas of the continent that hold the greatest potential for agricultural development. Greater exploitation of the genetic resistance to trypanosomosis (trypananotolerance) t...


Kahi, A.K.[Genetic and economic aspects of breeding for dairy production in Kenya.]Genetic and economic aspects of breeding for dairy production in Kenya.

Historically, conventional breeding has been the primary strategy used to develop a number of Striga-resistant varieties currently grown in the Sahel of Western Africa. In this study, we have successfully developed and applied a marker-assisted selection strategy that employs a single backcross p...


Omoigui, L.O.Kamara, A.Y.Moukoumbi, Y.D.Ogunkanmi, L.A.Timko, M.P.[Breeding cowpea for resistance to striga gesnerioides in the Nigerian dry savannas using marker-assisted selection]Breeding cowpea for resistance to striga gesnerioides in the Nigerian dry savannas using marker-assisted selection

The West and Central Africa Collaborative Maize Research Network (WECAMAN) was established in 1987 to strengthen the capacity and capability of national programmes of West and Central Africa (WCA) to tackle regional constraints to maize production. The Network created several mechanisms for imple...


Badu-Apraku, B.Fakorede, M.A.B.Menkir, A.Marfo, K.Akanvou, L.[Enhancing the capacity of national scientists to generate and transfer maize technology in West and Central Africa: research implementation, monitoring and evaluation]Enhancing the capacity of national scientists to generate and transfer maize technology in West and Central Africa: research implementation, monitoring and evaluation

Bambara groundnut (Vigna subterranea (L.) Verdc.) has a large number of landraces throughout Africa where small-scale farmers have preserved its genetic diversity on-farm. To date, the full genetic diversity of the crop remains largely unexploited. Until recently bambara groundnut never received ...


Massawe, F.Nwale, S.Azam-Ali, S.N.Roberts, J.[Breeding in bambara groundnut (Vigna subterranea (L.) Verdc): strategic considerations]Breeding in bambara groundnut (Vigna subterranea (L.) Verdc): strategic considerations

Bambara groundnut (Vigna subterranea (L.) Verdc.) has a large number of landraces throughout Africa where small-scale farmers have preserved its genetic diversity on-farm. To date, the full genetic diversity of the crop remains largely unexploited. Until recently bambara groundnut never received ...


Massawe, F.Nwale, S.Azam-Ali, S.N.Roberts, J.[Breeding in bambara groundnut (Vigna subterranea (L.) Verdc): strategic considerations]Breeding in bambara groundnut (Vigna subterranea (L.) Verdc): strategic considerations

High temperatures affect potato production in the tropics, putting tuber yield and quality at risk and leading to increased glycoalkaloid concentration the cause of the bitter taste in potatoes and a cause for concern for human health. The International Potato Center (CIP), has developed new heat...


Gastelo, M.Díaz, L.Burgos, G.Felde, T. zumBonierbale, Merideth W.[Heritability for yield and glycoalkaloid content in potato breeding under warm environments.]Heritability for yield and glycoalkaloid content in potato breeding under warm environments.

The magnitude of genetic expression and associations among traits are important for the prediction of response to selection in diverse environments and provide the basis for planning and evaluating breeding programs. In this regard, a cross classification mating design was used to produce hybrid ...


Kenga, R.Tenkouano, A.Gupta, S.C.Alabi, S.O.[Genetic and phenotypic association between yield components in hybrid sorghum (Sorghum bicolor (L.) Moench) populations]Genetic and phenotypic association between yield components in hybrid sorghum (Sorghum bicolor (L.) Moench) populations

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