Search Results - "West Africa"

Caractérisation des chaînes de valeur et des marchés des cultures négligées et sous-utilisées à l’Ouest du Niger: Cas de patate douce, manioc, moringa, gombo, oseille et voandzou by Oumarou Haladou, Issoufou, De Falcis, Eleonora, Tietiambou, Fanta Reine Sheirita, Grazioli, Francesca, Borelli, Teresa, Naino Jika, Abdel Kader, Otieno, Gloria, Lochetti, Gaia, Acasto, Filippo, Ghione, Andrea, Pugliese, Patrizia, Bteich, Marie-Reine, Callieris, Roberta, Cardone, Gianluigi, El Bilali, Hamid, Gonnella, Maria, Moretti, Antonio, Calabrese, Nicola, Dan Guimbo, Iro, Dambo, Lawali, Nanema, Jaques, Diawara, Ali Badara, Nouhou, Bassirou

“…In West Africa, the alarming levels of food and nutrition insecurity compounded by poverty explain the failure of agricultural and food systems. …”
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African agricultural R&D in the new millennium: Progress for some, challenges for many by Beintema, Nienke M., Stads, Gert-Jan

“…Many countries—particularly those in francophone West Africa, which are threatened by extremely fragile funding systems—face fundamental capacity and investment challenges. …”
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Incidence and severity of aphid-transmitted viruses and horticultural performance of habanero pepper (Capsicum chinense Jacq.) breeding lines in Benin by Zohoungbogbo, Herbaud P.F., Achigan-Dako, Enoch G., Honfoga, Judith, Lin, Shih-Wen, Lin, Tsung-Han, Wang, Yen-Wei, Chan, Yuan-Li, Hanson, Peter, Barchenger, Derek W.

“…There was a negative correlation between disease incidence and total yield (r = −0.44; P < 0.001), supporting previous studies indicating that viral diseases are major production constraints for habanero in West Africa. This study provides insight regarding the need to improve habanero for resistance to aphid-transmitted viruses and develop integrated pest management strategies to limit losses in Benin.…”
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Characterization of adaptation mechanisms in sorghum using a multireference back-cross nested association mapping design and envirotyping by Garin, Vincent, Chiaka Diallo, Mohamed Lamine Tékété, Korotimi Théra, Guitton, Baptiste, Karim Dagno, Abdoulaye G. Diallo, Kouressy, Mamoutou, Leiser, Willmar, Rattunde, Fred, Sissoko, Ibrahima, Touré, Aboubacar, Nébié, Baloua, Moussa Samaké, Kholovà, Jana, Berger, Angélique, Frouin, Julien, Pot, David, Vaksmann, Michel, Weltzien-Rattunde, Eva, Niaba Témé, Rami, Jean-François

“…We utilized this strategy to analyze the genetic architecture of flowering time and plant height, which represents key adaptation mechanisms in environments like West Africa. Our results allowed a better characterization of well-known genomic regions influencing flowering time concerning their response to photoperiod with Ma6 and Ma1 being photoperiod-sensitive and the region of possible candidate gene Elf3 being photoperiod-insensitive. …”
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Status of agricultural water management practices in Africa: a review for the prioritisation and operationalisation of the Africa Union’s irrigation development and agricultural wa... by Dirwai, Tinashe Lindel, Taguta, C., Senzanje, A., Nhamo, L., Cofie, Olufunke O., Lankford, B., Nyambe, H. N., Mabhaudhi, T.

“…Policy-related issues affected North Africa, whilst low investment in AWM dominated West Africa. Poor institutional coordination plagued East Africa, whilst low access to extension services affected Southern Africa. …”
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Accelerating the transformation of the rice sector in Burkina Faso: moving from technology to system-wide pathways by Kpadonou, G Esaie, Ganyo, Komla Kyky, Segnon, Alcade Christel, Dossou Yovo, Elliot R, Dicko, Mohamed, Sall, Abdou, Batieno, Benoit Joseph, Ndaw, Omar, Ouattara, Yabile Florence, Kane, Mahamadi, Lamien, Nieyidouba, Zougmore, Robert Bellarmin

“…The transformation of the rice sector in West Africa remains a strategic priority as rising consumption continues to outpace regional production, leading to persistent reliance on imports exceeding 15 million tons annually. …”
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Effects of grazing intensity and prescribed fire on soil physical and hydrological properties and pasture yield in the savanna woodlands of Burkina Faso by Savadogo, P., Sawadogo, L., Tiveau, D.

“…In West Africa policies for prescribed early fire and livestock grazing in the savanna woodlands are rarely based on long-term experimental studies. …”
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Best-bet integrated strategies for containing drug-resistant trypanosomes in cattle by Mungube, E.O., Diall, O., Baumann, M.P.O., Hoppenheit, A., Hinney, B., Bauer, B., Sanogo, Y., Maiga, B., Zessin, K.H., Randolph, Thomas F., Clausen, Peter-Henning

“…**Background** African animal trypanosomosis is a major constraint to the rearing of productive livestock in the sub-humid Sudan-Sahel zone of West Africa where cotton is grown. Trypanosomosis is mainly controlled using trypanocidal drugs, but the effective use of drugs is threatened by the development of widespread resistance. …”
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Estimates of genetic variances and relationship among traits associated with stem borer resistance in maize (Zea mays L.) by Oloyede-Kamiyo, Q., Ajala, S., Akoroda, M.O.

“…However, most of the landraces carrying the monogenic resistance are morphologically very similarand come from a geographically restricted area of West Africa, raising the possibility that the diversityof the single-gene resistance could be very limited, or even located at a single locus. …”
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Waking the Sleeping Giant: Agricultural intensification, extensification or stagnation in Mali's Guinea Savannah by Ollenburger, M.H., Descheemaeker, Katrien K., Crane, Todd A., Sanogo, O.M., Giller, Kenneth E.

“…The World Bank argued that West Africa's Guinea Savannah zone forms part of “Africa's Sleeping Giant,” where increases in agricultural production could be an engine of economic growth, through expansion of cultivated land in sparsely populated areas. …”
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GF120 effects on fruit fly species (Diptera Tephritidae) in Sahelian agroforestrybased horticultural cropping systems by Zakari-Moussa, O., Ratnadass, A., Vayssières, Jean-François, Nikiema, A., Fatondji, D., Salha, H., Aboubacar, K., Ryckewaert, P., Pasternak, D.

“…In the water-saving and income-generating agroforestry cropping systems developed and promoted by the ICRISAT in the Sudano-Sahelian zone of West Africa, particularly in Niger, fruits of domesticated Ziziphus mauritiana (“apples of the Sahel”) are severely damaged by fruit flies (Carpomya incompleta), and chemical pesticide application poses economic, environmental and human health problems. …”
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Cocoa agroforestry is less resilient to sub-optimal and extreme climate than cocoa in full sun by Abdulai, I., Vaast, Philippe, Hoffmann, M.P., Asare, R., Jassogne, Laurence T.P., Asten, Piet J.A. van, Rötter, Reimund P., Graefe, Sophie

“…We monitored micro-climate, sap flux density, throughfall, and soil water content from November 2014 to March 2016 at the forest-savannah transition zone of Ghana with climate and drought events during the study period serving as proxy for projected future climatic conditions in marginal cocoa cultivation areas of West Africa. Combined transpiration of cocoa and shade trees was significantly higher than cocoa in full sun during wet and dry periods. …”
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Molecular biodiversity of cassava begomoviruses in Tanzania: evolution of cassava geminiviruses in Africa and evidence for East Africa being a center of diversity of cassava gemini... by Ndunguru, J., Legg, James P., Aveling, T., Thompson, G., Fauquet, Claude M.

“…We report for the first time the presence of two isolates in East Africa: (EACMCV-[TZ1] and EACMCV-[TZ7]) of the species East African cassava mosaic Cameroon virus, originally described in West Africa. The complete nucleotide sequence of EACMCV-[TZ1] DNA-A and DNA-B components shared a high overall sequence identity to EACMCV-[CM] components (92% and 84%). …”
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Assessment of Greenhouse Gas Emissions from Different Land-Use Systems: A Case Study of CO2 in the Southern Zone of Ghana by Sekafor, MacCarthy Dilys, Zougmoré, Robert B., Akponikpè, Pierre B.I., Koomson, Eric, Savadogo, Patrick, Adiku, Samuel G.K.

“…This study reports findings on the effects of different land-use systems on GHG emissions (CO2 in this case) from two locations in the southern zone of Ghana, West Africa. Site one (located at Kpong) contained a heavy clay soil while site two (located at Legon) contained a light-textured sandy soil. …”
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Fertilizer use and definition of farmer domains for impactoriented research in the northern Guinea savanna of Nigeria by Manyong, Victor M., Makinde, K., Sanginga, N., Vanlauwe, Bernard, Diels, J.

“…One of the options to alleviate soil fertility constraints for sustainable agriculture in the savannas of West Africa is to develop soil nutrient management technologies from an adequate supply and feasible share of organic and mineral inputs. …”
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Inception Report: Feed the Future for Climate-Smart Cocoa Program by CGIAR Research Program on Climate Change, Agriculture and Food Security

“…Cocoa also is a unique crop facing a complex set of challenges, both today and in future. Currently, West Africa accounts for over 70% of global cocoa output involving an estimated two million households, most of them smallholders with three hectares or less. …”
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Determinants de ladoption du Mucuna dans le departement du Mono au Benin by Houndekon, V.A., Manyong, Victor M., Gogan, C.A., Versteeg, M.

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Enhancing the capacity of local communities to access crop genetic diversity for climate change adaptation by Otieno, Gloria Atieno, N’Danikou, Sognigbe, Bossou, Bienvenu, Mikpon, Toussaint, Vodouhe, Raymond, Recha, John W.M., Halewood, Michael

“…Benin is located on the Guinean coast of West Africa and has a mixed tropical and sub-equatorial climate with two rainy seasons. …”
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Legume-maize rotation or relay? Options for ecological intensification of smallholder farms in the Guinea Savanna of northern Ghana by Kermah, M., Franke, A.C., Ahiabor, B.D.K., Adjei-Nsiah, Samuel, Abaidoo, Robert C., Giller, Kenneth E.

“…Soil nutrient constraints coupled with erratic rainfall have led to poor crop yields and occasionally to crop failure in sole cropping in the Guinea savanna of West Africa. We explored different maize-grain legume diversification and intensification options that can contribute to mitigating risks of crop failure, increase crop productivity under different soil fertility levels, while improving soil fertility due to biological N2-fixation by the legume. …”
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First report of cassava mosaic disease and cassava mosaic geminiviruses in Gabon by Legg, James P., Ndjelassili, F., Okao-Okuja, G.

“…Cassava mosaic disease (CMD), arguably Africa's greatest plant protection problem, has been known to occur in central/West Africa for more than 70 years. There is, however, no published record of the occurrence of CMD or the cassava mosaic geminiviruses (CMGs) that cause it from the central African country of Gabon. …”
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