Search Results - "West Africa"

Household food insecurity, coping strategies, and nutritional status of pregnant women in rural areas of northern Ghana by Saaka, M., Oladele, J., Larbi, Asamoah, Hoeschle-Zeledon, Irmgard

“…The magnitude, determinants of HFI, and how it relates to the nutritional status of pregnant women were evaluated in the Africa RISING West Africa project intervention communities in Northern Ghana. …”
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Transiting cassava into an urban food and industrial commodity through agroprocessing and marketing driven approaches: lessons from Africa by Abass, A., Bokanga, M., Dixon, A., Bramel-Cox, P.J.

“…These were tested at a pilot scale with farmers and food factories in West Africa (1995–1998). The technologies were transferred across 25 African countries (1996–2001). …”
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Seedling emergence model for tropic Ageratum (Ageratum conyzoides) by Ekeleme, F., Forcella, F., Archer, D., Akobundu, O., Chikoye, David

“…With such models, extension personnel working on tropical soils, especially in West Africa, may be able to provide additional advice to farmers on the appropriate time for the management of tropic ageratum.…”
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Arbuscular mycorrhizal fungal and soil microbial communities in African Dark Earths by Camenzind, Tessa, Hammer, Edith C, Lehmann, Johannes, Solomon, Dawit, Horn, Sebastian, Rillig, Matthias C, Hempel, Stefan

“…Very recently, Dark Earth soils were also identified in tropical West Africa, with comparable beneficial soil properties and plant growth-promoting effects. …”
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On-farm cocoa yields increase with canopy cover of shade trees in two agro-ecological zones in Ghana by Asare, R., Markussen, B., Asare, R.A., Anim-Kwapong, G.J., Ræbild, A.

“…However, there have been few studies in West Africa on the relationship between shade and cocoa yield under field conditions. …”
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Climate variability and change in Southern Mali: learning from farmer perceptions and on-farm trials by Traoré, B., Wijk, Mark T. van, Descheemaeker, Katrien K., Corbeels, Marc, Rufino, Mariana C., Giller, Kenneth E.

“…Agricultural production in the Sudano–Sahelian zone of west Africa is highly vulnerable to the impacts of climate variability and climate change. …”
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Recent loss of closed forests is associated with Ebola virus disease outbreaks by Olivero, J., Fa, J.E., Real, R., Márquez, A.L., Farfán, M.A., Vargas, J.M., Gaveau, D.L.A., Salim, M.A., Park, D., Suter, J., King, S., Leendertz, S.A., Sheil, D., Nasi, Robert

“…We used remote sensing techniques to investigate the association between deforestation in time and space, with EVD outbreaks in Central and West Africa. Favorability modeling, centered on 27 EVD outbreak sites and 280 comparable control sites, revealed that outbreaks located along the limits of the rainforest biome were significantly associated with forest losses within the previous 2 years. …”
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Intermediate tree cover can maximize groundwater recharge in the seasonally dry tropics by Ilstedt, Ulrik, Tobella, B., Bazié, H.R., Verbeeten, E., Nyberg, G., Benegas, S.L., Murdiyarso, Daniel, Laudon, H., Sheil, D., Malmer, A.

“…Our results, based on groundwater budgets calibrated with measurements of drainage and transpiration in a cultivated woodland in West Africa, demonstrate that groundwater recharge was maximised at intermediate tree densities. …”
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Influence of black sigatoka disease on the growth and yield of diploid and tetraploid hybrid plantains by Craenen, K., Ortíz, R.

“…It is commonly considered the major constraint to plantain production in West Africa. The disease causes severe leaf necrosis and reduces yield by 30 to 50%. …”
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Yam breeding by Asiedu, Robert, Mignouna, H., Odu, B., Hughes, J.

“…Of the several viruses infecting yams, the most commonly occurring in West Africa is the Yam mosaic virus (YMV), genus Potyvirus. …”
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Root endophytic status of west African biocontrol agents and implications for root-knot nematode management by Affokpon, A., Djihinto, A.C., Coffi, E.N.D., Coyne, Danny L., Coosemans, J.

“…The potential of four fungal biocontrol isolates (Trichoderma asperellum T-12, Pochonia chlamydosporia Pc-1, Kuklospora kentinensis BEN302, Aspergillus allahabadii BEN03) from West Africa to endophytically colonize tomato plants and provide in planta protection against root-knot nematodes (Meloidogyne spp.), was assessed in pots in the greenhouse. …”
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Historical overview of breeding for durable resistance to maize streak virus for tropical Africa by Buddenhagen, I.W., Bosque Pérez, N.A.

“…Methods were continuously improved and resistant open pollinated varieties and hybrids produced that are now used on a large scale by farmers in West Africa. The strategy for success was based on: 1) Avoidance of virus strain specificity; 2) Large scale vector rearing and field infestation to ensure early infection; 3) Selection only for tolerance when infected; and 4) Not separating virus resistance selection from simultaneous selection for yield, adaptation, and resistance to other diseases important in each target ecology. …”
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Recovering bioenergy in Sub-Saharan Africa: gender dimensions, lessons and challenges by Njenga, M., Mendum, R.

“…This is demonstrated in a range of case studies from East and West Africa, where biochar, human waste and other waste resources have been used to produce briquettes or biogas as additional high-quality fuel sources. …”
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Reducing iron toxicity in rice with resistant genotype and ridge planting by Winslow, M., Yamauchi, M., Alluri, F., Masajo, T.

“…Iron toxicity reduces rice (Otyza sativa L.) grain yield in many poorly drained swamps in West Africa. Two methods for alleviating Fe toxicity were examined, (i) the use of a resistant genotype, and l(ii) planting on ridges to aerate the upper root zone. …”
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Silicon disease resistance, and yield of rice genotypes under upland cultural conditions by Winslow, M.

“…Silicon deficiency limits rice (Oryza sativa L.) yield on highly weathered upland soils in West Africa and can increase susceptibility to some diseases. …”
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Host plants and population dynamics of the cob borer Mussidia nigrivenella Ragonot (Lepidoptera: Pyralidae) in Benin by Sétamou, M., Schulthess, F., Poehling, H., Borgemeister, C.

“…DC. and Mucuna pruriens DC., two popular cover crops in West Africa. Maize and cotton were about equally suitable hosts. …”
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CGIAR Mid-Term Meeting, Nairobi, Kenya, May 22-26, 1995: Summary of Proceedings and Decisions by CGIAR Secretariat

“…It endorsed reports from two ad hoc committees which met in parallel session to consider external reviews of CIAT, CIP, and ICLARM, a report on CGIAR commitments in West Africa, and new terms of reference and guidelines for external reviews of centers. …”
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Breeding cowpea varieties for resistance to Striga gesnerioides and Alectra vogelii by Singh, B.B.

“…Alectra is more prevalent in the northern Guinea savanna and southern Sudan savanna of West Africa, as well as in East and southern Africa whereas Striga is mostly found in West and Central Africa. …”
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An approach for the evaluation of herbaceous legumes with multiple benefits by Tarawali, Shirley A.

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The effect of different agroecological zones and plant age on the cyanogenic potential of six cassava clones by Githunguri, C.M., Ekanayake, I.J., Chweya, J.A., Dixon, Alfred G.O., Imungi, J.

“…The effects of plant age on the cyanogenic potential (CNP) of leaves (CNP-L) and storage roots (CNP-R) of selected cassava clones, TMS 30001, TMS 4(2)1425, TME1, TME2,Isunikankiyanand Dakata Wariya were studied in two agroecological zones in West Africa. The two zones were represented by Kano in the Sudan Savanna zone with a unimodal annual rainfall averaging 844 mm and Ibadan in the forest-savanna transition zone with a bimodal rainfall averaging 1253mm per year. …”
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