Resultados de búsqueda - "Nigeria"

Investigating manual sprout removal in stored yam: effect of tuber sizes on some physicochemical properties por Etudaiye, H.A., Uvere, P.O., Rees, D., Abayomi, L., Westby, A., Maroya, N.G., Ukpabi, U.J.

“…Tubers were stored on shelves for 16 weeks in a yam storage laboratory at National Root Crops Research Institute, Umudike, Nigeria. Physicochemical parameters determined were temperature, relative humidity, sprout count, weight loss (WL), dry matter (wet basis), starch yield, amylose, reducing sugars (TRS), water absorption capacity (WAC) and bulk density (BD). …”
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Microhabitat use and seasonality of the sexually dimorphic West African centaurus beetle Augosoma centaurus por Dendi, D., Ajong, S.N., Eniang, E.A., Segniagbeto, G.H., Assou, D., Ketoh, G.K., Gomina, M., Radji, R., Demaya, G.S., Benansio, J.S., Muscarella, C., Vittorio, M. di, Fa, J.E., Amori, G., Luiselli, L.

“…We present information on size differences and analysed intersexual niche divergence and seasonality of A. centaurus in seven study sites in three West African countries (Ivory Coast, Togo and Nigeria). We recorded 711 light-attracted and/or opportunistically encountered individuals, as well as another 97 beetles in standardized transect surveys. …”
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Diversity of Rice yellow mottle virus in Benin and Togo and Screening for Resistant Accessions por Oludare, A., Tossou, H.T., Kini, K., Silué, D.

“…Surveys were conducted in rice fields in Benin, Cote d'Ivoire, Mali, Nigeria, Togo and Niger to assess the importance of Rice yellow mottle virus (RYMV). …”
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Potential returns to yam research investment in sub-Saharan Africa and beyond por Mignouna, Djana B., Akinola, A.A., Abdoulaye, Tahirou, Alene, Arega D., Manyong, Victor, Maroya, N.G., Aighewi, B.A., Kumar, P. Lava, Balogun, M., López Montes, Antonio José, Rees, D., Asiedu, R.

“…As a way of investigating the economic viability of yam investment, this research has been initiated to address problems confronting yam productivity in eight countries of SSA and beyond: Nigeria, Ghana, Benin, Togo, Côte d’Ivoire, Papua New Guinea, Jamaica, and Columbia. …”
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Accelerated genetic gains in early-maturing maize hybrids following three periods of genetic enhancement for grain yield under low and high soil-nitrogen environments por Badu-Apraku, Baffour, Fakorede, M.A.B., Abubakar, M.

“…Fifty-four early-maturing hybrids developed during three breeding periods, (2008–2010, 2011–2013 and 2014–2016) were evaluated under low (30 kg ha−1) and high (120 kg ha−1) soil nitrogen (N) in Ile-Ife and Mokwa, Nigeria, from 2017 to 2019. The study was designed to (i) determine the genetic gains in grain yield of the early-maturing maize hybrids developed during the three breeding periods, (ii) determine the relationship between grain yield and other agronomic traits and (iii) identify the highest-yielding and most stable hybrids under low- and high-N environments. …”
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Identification of early and extra-early maturing tropical maize inbred lines with multiple disease resistance for enhanced maize production and productivity in sub-Saharan Africa por Bankole, F., Badu-Apraku, Baffour, Salami, A.O., Falade, Titilayo D.O., Bandyopadhyay, R., Ortega Beltran, A.

“…Forty-nine early-maturing (90-95 days to physiological maturity, EM) and 55 extra-early-maturing (80-85 days to physiological maturity, EEM) IITA inbred lines were identified as resistant to NCLB in field evaluations in multiple agro-ecologies of Nigeria in 2017 and 2018. From each maturity group, 30 most resistant inbreds were selected for evaluation for resistance to SCLB and CLS using a detached leaf assay. …”
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Heritability and correlation coefficient analysis for yield and its components in rice (Oryza sativa L.) por Akinwale, M.G., Gregorio, G., Nwilene, F., Akinyele, B.O., Ogunbayo, S.A., Odiyi, A.C.

“…The experiment was laid out in a randomized complete block design (RCBD) with three replications in the International Institute of Tropical Agriculture, Ibadan, Nigeria during 2008/2009 cropping season. Genotypes differed significantly at (p>0.001) for all the traits studied, which implies that the genotypes constitute a pool of germplasm with adequate genetic variability. …”
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Development of a pilot scale energy efficient flash dryer for cassava flour por Adegbite, S.A., Asiru, W.B., Sartas, M., Tran, T., Taborda, L.A., Chapuis, Arnaud, Ojide, M., Abass, A.

“…A scaled-up version of the prototype flash dryer installed at the International Center for Tropical Agriculture (CIAT), Cali, Colombia, was built at the Federal Institute of Industrial Research, Oshodi, (FIIRO), Lagos, Nigeria based on numerical modeling.​ Excel tools developed by the CGIAR (RTB) scientists were used to design the components and built using locally sourced materials. …”
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A simple fruit and vegetable score is a valid tool to assess actual fruit and vegetable intake por Pastori, Giulia, Brouwer, Inge D., Feskens, Edith J.M., Huong, Le Thi, Samuel, Folake O., Le, Xuan Thi Thanh, Shittu, Oluyemisi F., Eyinla, Toluwalope E., Talsma, Elise F.

“…We found proportional differences in the prevalence of intake of vitamin A-rich vegetables, other vegetables and other fruits in Vietnam and all vegetable food groups in Nigeria. In both countries, we found a small difference in the total FV-GDR from DQQ compared with the 24hR, and the percentage of agreement between the two methods was quite high for the majority of the food groups. …”
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Managing fall armyworm (Spodoptera frugiperda J.E. Smith) using leaf residue of neem (Azadirachta indica A. Juss) on maize (Zea mays L.) under natural infestation por Ewansiha, S.U., Enogieru, L.H., Aigbe, U.D., Kamara, A.

“…This investigation was conducted during April–November 2020 at the Training and Research Farm, University of Benin, Nigeria, aiming to improve maize yields by using neem leaf residue for managing fall armyworm under natural infestation. …”
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Enhancing genetic gains in grain yield and efficiency of testing sites of early-maturing maize hybrids under contrasting environments por Badu-Apraku, B., Abubakar, A.M., Adu, G.B., Yacoubou, A.M., Adewale, S., Adejumobi, I.I.

“…Fifty-four hybrids developed during three periods of genetic enhancement (2008–2010, 2011–2013, and 2014–2016) were evaluated in Nigeria, The Republic of Benin, and Ghana under multiple stressors (Striga infestation, managed drought, and Low N) and non-stress environments from 2017 to 2019. …”
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Technologies for African Agricultural Transformation (TAAT) celebrates 143 interventions in 132 sites across Africa: Updates 2018, Issue 001 por Technologies for African Agricultural Transformation

“…This issue covers the Program's first year of implementation under the following subjects: About TAAT African Development Bank seeks partnerships to lift one billion people out of hunger How TAAT is empowering women farmers through Urea Deep Placement Technology Fertilizer Microdose Technology leads to higher yields among farmers in Mali TAAT’s Business Platform approach boosts access to high iron beans in Zimbabwe Farm to Fork: TAAT engages youth in growing beans TAAT trains trainers on managing innovation platforms to amplify hotspots in the local tech How TAAT’s deployment of feed resources is meeting Ethiopia’s livestock needs TAAT: Enabling the passion of African youth in Agriculture Deployment of proven technologies leads to increased aquaculture productivity New technologies and best management practices boost aquaculture How TAAT Technologies are taking cassava to a new frontier in Africa TAAT: Steering Africa towards a water-secured wheat production Feed Africa: Stakeholders zero in on partnerships for technology delivery TAAT enhances the adoption of improved pearl millet Crop residue trade leads to leads to increase in farmers’ income in Nigeria TAAT approach to combating fall armyworm offers hope to millions TAAT records increased food production and income through maize technologies TAAT supports harmonization of seed policy in Southern and Eastern Africa Democratic Republic of Congo: Implementing reforms for seed sector development Sierra Leone: Stakeholder engagement for seed sector reform TAAT transforms Sudanese wheat seed sector with proven technologies Rwandan youth find self-employment in processing orange-fleshed sweet potato How TAAT is rewriting the African rice story Sights and Visions of African Agricultural Transformation.…”
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Genetic diversity assessment of winged bean [Psophocarpus tetragonolobus (L.) DC.] accessions using agronomic and seed morphometric traits por Bhadmus, A., Abberton, M., Idehen, E.O., Ekanem, U.O., Paliwal, R., Oyatomi, O.

“…To bridge this gap, thirty accessions of winged beans sourced from the Gene Bank of the International Institute of Tropical Agriculture (IITA), Ibadan, were evaluated for seed morphometric and selected agro-morphological traits at three agro-ecological zones in Nigeria. The data obtained were subjected to analysis of variance (ANOVA), principal component (PC) analysis, cluster analysis, and correlation analysis. …”
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Women power! Gender-related inequality in agricultural income generation: Empirical evidence from eight African countries por Heesemann, Esther, Kluth, Jessika, Nico, Gianluigi, Cavatassi, Romina, Sitko, Nicholas, Azzarri, Carlo

“…Our study takes advantage of nationally representative LSMSISA household surveys from eight countries in Africa, south of the Sahara (Burkina Faso, Ethiopia, Malawi, Mali, Niger, Nigeria, Tanzania, and Uganda), matched with gridcell monthly time-series bioclimatic variables (temperature, rainfall, SPI, SPEI), to identify climate shocks and weather variability. …”
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Evidence for Resilient Agriculture (ERA): Livestock Data por Rosenstock, Todd S., Steward, Peter Richard, Joshi, Namita, Mumo, Elijah Musyoki, Ombewa, Babra Vivian Adhiambo, Kacha, Gabrielle Nour

“…The geographic scope of experimental locations includes Nigeria (20% of locations), Ethiopia (17.7%), South Africa (14.9%), Egypt (8.8%), Kenya (7%), Tanzania (5.8%), Ghana (4.2%) and 16 more countries (21.7%). …”
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Water insecurity is associated with greater food insecurity and lower dietary diversity: Panel data from sub-Saharan Africa during the COVID-19 pandemic por Miller, Joshua D., Young, Sera L., Bryan, Elizabeth, Ringler, Claudia

“…Data are from panel surveys conducted during 2020–21 among adults involved in smallholder agriculture in Niger (n = 364, 3 rounds), Nigeria (n = 501, 5 rounds), Senegal (n = 501, 5 rounds), and Ghana (n = 543, 5 rounds). …”
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Selection of extra-early white quality protein maize (Zea mays L.) inbred lines for drought and low soil nitrogen resilient hybrid production por Annor, B., Badu-Apraku, B.

“…During the 2012 minor and major rainy seasons, 96 extra-early white QPM inbreds and four (4) normal endosperm maize inbred checks were assessed inmulti-location trials under stress and optimal conditions in Nigeria. The experiments were laid out in a 10 × 10 simple lattice design with two replications. …”
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Commercializing public agricultural technologies and goods: A framework to identify opportunities for interventions por Nyangaresi, Annette M., Granger, Kate, Friesen, Valerie M., McClafferty, Bonnie, Haswell, Daniel, Mudyahoto, Bho, Reyes, Byron, Mbuya, Mduduzi, Greenberg, Allison

“…Case studies on fortified wheat flour in the United States and vitamin A-biofortified cassava in Nigeria were used to illustrate how the framework can be used to synthesise and organise the different information about a food product value chain and subsequently analyse it to inform commercialisation strategy decisions.…”
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Scaling up delivery of biofortified staple food crops globally: Paths to nourishing millions por Foley, Jennifer, Michaux, Kristina D., Mudyahoto, Bho, Kyazike, Laira, Cherian, Binu, Kalejaiye, Olatundun Adeoti, Ifeoma, Okonkwo, Ilona, Paul, Reinberg, Chelsea, Mavindidze, Donald, Boy, Erick

“…To scale-up pearl millet, HarvestPlus established partnerships with public and private seed companies, which facilitated the rapid commercialization of products and engagement of farmers in delivery activities. In Nigeria, HarvestPlus stimulated the initial acceptance and popularization of vitamin A cassava using a host of creative approaches, including “crowding in” delivery partners, innovative promotional programs, and development of intermediate raw material for industry and novel food products. …”
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Public-sector maize research locations and spatial heterogeneity in maize productivity: Insights from four African countries on the roles of agroclimatic similarity por Takeshima, Hiroyuki

“…This paper partly aims to fill this knowledge gap by obtaining insights for maize, one of the most commonly grown crops in SSA, using nationally representative farm household data for Ethiopia, Ghana, Nigeria, and Uganda, and spatial agroclimatic data. …”
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