Search Results - "West Africa"

Evidence for negative selection of gene variants that increase dependence on dietary choline in a Gambian cohort by Silver, M.J., Corbin, K.D., Hellenthal, G., Costa, K.A. da, Domínguez Salas, Paula, Moore, S.E., Owen, J., Prentice, A.M., Hennig, B.J., Zeisel, S.H.

“…Evidence of negative selection was assessed in 2 populations: one in The Gambia, West Africa, where there is historic evidence of a choline-poor diet, and the other in the United States, with a comparatively choline-rich diet. …”
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The value and benefits of using seasonal climate forecasts in agriculture: evidence from cowpea and sesame sectors in climate-smart villages of Burkina Faso by Ouédraogo, Mathieu, Zougmoré, Robert B., Barry S, Somé, Léopold, Grégoire B

“…This infonote summarizes initial findings of a project entitled “Impact of communicating seasonal climate forecasts to cowpea and sesame farmers in Yatenga region, North Burkina Faso’” undertaken during the 2014 main agricultural season by scientists from the CCAFS West Africa programme and the Institut de l’Environnement et de Recherches Agricoles (INERA), Burkina Faso. …”
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Impacts of small built infrastructure in inland valleys in Burkina Faso and Mali: rationale for a systems approach that thinks beyond rice? by Katic, Pamela G., Lautze, Jonathan F., Namara, Regassa E.

“…The potential to increase agricultural production in inland valleys in West Africa has received a good degree of attention in both national development strategies and academic literature, and improving agriculture productivity in inland valleys has been an active area of donor engagement. …”
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Mixplanting pubescent and glabrous cassava affects abundance of Typhlodromalus aripo and its prey mite Mononychellus tanajoa by Onzo, A., Hanna, R., Toko, M.

“…The study was conductedin a cassava field in Benin, West Africa. The experiments confirmed thatT. aripoeffectively suppressesM. tanajoapopulations on both cultivarsand showed, in the no-predator-exclusion experiments, that cultivar com-binations have significant effects onM. tanajoaandT. aripodensities.Indeed,T. aripoload on the non-preferred cultivar was lowest in subplotswhere the proportion ofT. aripo-preferred cultivar was also low, while,and as expected,M. tanajoaload on the non-preferred cultivar showeddecreasing trends with increasingT. aripodensities. …”
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Effective chemical control of fruit flies (Diptera: Tephritidae) pests in mango orchards in northern Côte-d’Ivoire by N'Depo, O. Robert, Hala, N., N'Da Adopo, A., Coulibaly, F., Kouassi, P.K., Vayssières, Jean-François, Meyer, M. de

“…Fruit flies are major pest in West Africa. In Côte-d’Ivoire, they caused heavy losses. …”
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Understanding market participation choices and decisions of maize and cowpea farmers in northern Nigeria by Mignouna, Djana B., Abdoulaye, Tahirou, Akinola, Adebayo A., Kamara, A., Oluoch, M.

“…The paper concludes with policy implications aimed at providing better market opportunities to farmers thereby improving their welfare in northern Nigeria and other areas with similar socio-economic and bio-physical conditions in West Africa.…”
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Fertilizer use and management practices among maize and cowpea smallholder farmers in Ghana by Okebalama, C.B., Safo, E.Y., Yeboah, E., Abaidoo, Robert C., Logah, V.

“…In most parts of West Africa, poverty contributes immensely to poor fertilizer adoption by smallholder farmers. …”
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Characterization of trypanosoma congolense stocks from the West and East African regions using molecular karyotyping. by Waihenya, R.

“…Trypanosoma congolense stocks from West Africa (Gambia, Burkina Faso and Nigeria) and East Africa (Kenya and Uganda) were grown and cloned in irradiated mice. …”
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Magnaporthe oryzae populations adapted to finger millet and rice exhibit distinctive patterns of genetic diversity, sexuality and host interaction by Takan, J.P., Chipili, J., Muthumeenakshi, S., Talbot, N.J., Manyasa, E.O., Bandyopadhyay, Ranajit, Sere, Y., Nutsugah, S.K., Talhinhas, P., Hossain, M.A., Brown, A., Sreenivasaprasad, S.

“…Rice blast populations in West Africa showed a typical lineage-based structure. …”
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Re-evaluation of Yam Mosaic Virus (YMV) detection methods by Eni, A., Hughes, J., Asiedu, Robert, Rey, M.

“…Accurate and timely detection is vital for mitigation of tuber yield losses resulting from yam mosaic virus (YMV) infection on yam, a major food security crop in West Africa. The observation, from our previous studies, that the triple antibody sandwich enzyme-linked immunosorbent assay (TAS-ELISA), the most commonly used detection method for YMV, detected the virus in significantly less leaf samples than immunocapture reverse transcription polymerase chain reaction (IC-RT-PCR) necessitated a re-evaluation of YMV detection methods. …”
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The effects of phytosanitary hot water treatments on West African mangoes infested with Bactrocera invadens (Diptera: Tephritidae) by Self, G., Ducamp, M., Thaunay, P., Vayssières, Jean-François

“…Quarantine heat treatments have not yet been introduced in West Africa and no work has been done to determine the treatment conditions needed to eliminate eggs and larvae of West African fruit fly populations, especially of the new species Bactrocera invadens, from mangoes produced in the region. …”
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Racocetra tropicana, a new species in the Glomeromycetes from tropical areas by Goto, B.T., Silva, G.A., Maia, L.C., Souza, R.G., Coyne, Danny L., Tchabi, A., Lawouin, L., Hountondji, F.C.C., Oehl, F.

“…A new species of the arbuscular mycorrhiza forming Glomeromycetes, Racocetra tropicana,was recently recovered from the semi-humid Atlantic coast line of Northeastern Brazil and from sub-Saharan savannas of Benin (West Africa). It forms yellow to dark yellow glomerospores on (dark) yellow brown sporogenous cells. …”
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Effects of local institutions on the adoption of agroforestry innovations: Evidence of farmer managed natural regeneration and its implications for rural livelihoods in the Sahel by Binam, Joachim N., Place, Frank, Djalal, A.A., Kalinganire, A.

“…This study demonstrated that regeneration of trees on farms, whereby farmers play an active role in the types of trees and their densities, is important as a practice and safety-net by providing cash income, caloric intake and diet, and crops supplements throughout dryland areas of West Africa. Overall, FMNR cannot be excluded as a recommendation in any geographical region. …”
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Solar drying technology: a pilot design in Benin Republic by Alenkhe, E.B., Onadipe, O.O., Sanni, Lateef O.

“…As part of solving this problem, the Cassava value chain development in West Africa - a project sponsored by the Common Fund for Commodities source information on existing solar drying systems in Nigeria, Ghana, Uganda, Cameroon, and Sierra Leone. …”
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Effectiveness of native West African arbuscular mycorrhizal fungi in protecting vegetable crops against root-knot nematodes by Affokpon, A., Coyne, Danny L., Lawouin, L., Tossou, C., Agbede, R.D., Coosemans, J.

“…Twenty strains of arbuscular mycorrhizal fungi (AMF), native to West Africa, and three commercial AMF, were evaluated for their protective effect against root-knot nematodes, Meloidogyne spp., in pots and field experiments in Benin. …”
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Physicochemical properties of yam starch: effect on textural quality of yam food product (pounded yam) by Otegbayo, B., Bokanga, M., Asiedu, Robert

“…This study was conducted to determine the relationship between physicochemical properties of yam starch (amylose and amylopectin, swelling, solubility and water binding capacity) and the textural quality (stretchability, cohesiveness, adhesiveness, hardness) of pounded yam, a major food product in West Africa. Yam starch was extracted from six tubers each of Dioscorea alata and D. rotundata and their physicochemical properties were determined by standard methods. …”
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Genetic diversity and population structure of Striga hermonthica populations from Kenya and Nigeria by Unachukwu, N.N., Menkir, A., Rabbi, Ismail Y., Oluoch, M., Muranaka, S., Elzein, A., Odhiambo, G., Farombi, E.O., Gedil, Melaku A

“…The presence of distinct populations in East and West Africa and in different regions in Nigeria highlights the importance of developing and testing Striga control technologies in multiple locations, including locations representing the geographic regions in Nigeria where genetically distinct subpopulations of the parasite were found. …”
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Agronomic evaluation of cowpea cultivars developed for the West African Savannas by Kamara, A.Y., Ewansiha, S.U., Ajeigbe, Hakeem A., Omoigui, L.O., Tofa, A.I., Karim, K.Y.

“…Also superior genotypes with desirable characteristics could be identified and disseminated in the dry savannas of West Africa. Significant variations were observed in the agronomic characteristics of the cultivars in this study. …”
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Diversity of root-knot nematodes associated with tubers of yam (Dioscorea spp.) established using isozyme analysis and mitochondrial DNA-based identification by Kolombia, Y.A., Karssen, G., Viaene, N., Kumar, P. Lava, Sutter, N. de, Joos, L., Coyne, Danny L., Bert, W.

“…The root-knot nematodes (RKN), Meloidogyne spp., represent an important threat to yam (Dioscorea spp.) production in West Africa. With the aim to establish the diversity of RKN species affecting yam tubers, for control and resistance screening purposes, surveys were conducted in the main yam producing areas of Nigeria. …”
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Molecular characterization of atoxigenic strains for biological control of aflatoxins in Nigeria by Donner, M., Atehnkeng, J., Sikora, R.A., Bandyopadhyay, Ranajit, Cotty, P.J.

“…The current study demonstrates VCGs of A. flavus in West Africa with diverse mechanisms of atoxigenicity and potential value in aflatoxin management programmes.…”
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