Resultados de búsqueda - "Nigeria"

Training of Trainers (ToT) on Clean Energy Options for Sustaining Agricultural Productivity Course Module por Ekepu, David, Nakayiwa, Florence Mayega, Majaliwa, Jackson Gilbert Mwanjalolo, Karume, Katcho

“…The participants came from 25 African countries including Kenya (24%), Uganda (20%), Ethiopia (14%), Nigeria (7%), Somalia (5%), Sudan (3%), South Africa (3%), Zimbabwe (2%), Cameroon (2%) and Ghana (2%). …”
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Effects of postpartum Trypanosoma vivax infection on feed intake, liveweight changes, milk yield and composition in West African Dwarf ewes and associated lamb growth rates por Akinbamijo, O.O., Reynolds, L., Sherington, J., Nsahlai, I.V.

“…The effects of trypanosomiasis on digestible organic matter intake, milk yield and composition, dam liveweight changes during lactation and lamb growth rates were investigated at Ibadan, Nigeria 1991/92, using 20 West African Dwarf sheep nursing single lambs. …”
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The potential contribution of selected forage legume pastures to cereal production in crop-livestock farming systems por Tarawali, Shirley A., Peters, Michael

“…The potential of 3-year-old grazed pastures of Stylosanthes hamata, Chamaecrista rotundifolia and Centrosema pascuorum to contribute to subsequent maize production was investigated in subhumid Nigeria in 1993. All three legume pastures had the ability to give better maize grain yields than native pasture but this was significant only for Stylosanthes hamata and Chamaecrista rotundifolia. …”
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Seasonal dynamics in dry matter degradation of browse in cattle, sheep and goats por Larbi, Asamoah, Smith, Jimmy W., Raji, A.M., Kurdi, I.O., Adekunle, I.O., Ladipo, D.O.

“…Rumen degradation characteristics of DM in edible forage of 25 multipurpose tree and shrub fodders (MPTS) harvested at the end of the main-wet (April-August 1992), minor-wet (September-November 1992) and dry (December 1992-March 1993) seasons were determined in rumen-fistulated Bunaji cattle (BC), West African Dwarf (WAD) sheep (WS) and WAD goats (WG) in Ibadan, southwestern Nigeria. Air dry samples of edible forage were incubated for 3, 6, 12, 36, 48, 72 and 96 h in three each of BC, WS and WG castrates fed a basal diet of Panicum maximum supplemented with Gliricidia sepium leaves. …”
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Genetic variation in the nutritive value of Gliricidia sepium. 1. Acceptability, intake, digestibility and live weight gain in small ruminants por Stewart, J.L., Dunsdon, A.J., Kass, M., López Ortiz, S., Larbi, Asamoah, Premaratne, S., Tangendjaja, B., Wina, E., Vargas, J.E.

“…The same five provenances of G. sepium (three high-yielding provenances from the native range, plus two land races locally considered to be of high and low acceptability, respectively) were planted at sites in Indonesia, Sri Lanka, Costa Rica, Colombia and Nigeria. They were compared in terms of their relative acceptability and their effects on intake, live weight gain, and in vivo and in sacco dry matter disappearance. …”
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Field reaction of cassava genotypes to anthranose, bacterial blight, cassava mosaic disease and their effects on yield por Fokunang, C.N., Ikotun, T., Dixon, Alfred G.O., Akem, C.N.

“…Thirteen cassava genotypes were evaluated at the International Institute of Tropical Agriculture, Ibadan, Nigeria for anthracnose (CAD), bacterial blight (CBB) and cassava mosaic disease (CMD) incidence and severity, and their effects on yield, for three consecutive planting seasons. …”
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The determinants of livestock prices in Niger por Fafchamps, M., Gavian, S.

“…It shows that livestock prices in Niger, a representative Sahelian country, respond not only to weather stocks but also to shifts in the rural and urban demand for meat in the country and in neighbouring Nigeria. The basis for 15 animal categories collected monthly in 38 districts of Niger over a period of 21 years.…”
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Fallow improvement with forage legumes: Potentials and constraints of an integrative technology for crop-livestock systems in sub-humid West Africa por Muhr, L., Peters, Michael, Tarawali, Shirley A., Schultze-Kraft, Rainer

“…At two sites in south-west Nigeria, 11 legume species with generally low nutrient requirements were evaluated on-station in a short-term ley system with a subsequent maize crop. …”
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Haemoglobin and transferrin types of some West African cattle por Braend, M., Khanna, N.D.

“…This paper reports the results of investigations of haemoglobin (Hb) and transferrin (Tf) types in the Muturu, N'Dama, Gudali and Red Mbororo breeds of Nigeria.The Hb gene frequencies were: Muturu, HbA = 0.72, HbD = 0.28; Gudali, HbA = 0.06, HbB = 0.32, HbC = 0.08; Red Bororo, HbA = 0.54, HbB = 0.44, HbC = 0.02. …”
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Combining ability, heterotic patterns and genetic diversity of extraearly yellow inbreds under contrasting environments por Badu-Apraku, Baffour, Oyekunle, M., Fakorede, M.A.B., Vroh Bi, Irie, Akinwale, R., Aderounmu, R.O.

“…Studies were conducted in 2011 at four locations in Nigeria to (i) determine the combining ability of 20 extra-early yellow inbred lines, (ii) classify the inbred lines into heterotic groups, and (iii) determine the genetic diversity among the lines. …”
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Evaluation of strigaresistant early maize hybrids and test locations under strigainfested and strigafree environments por Akinwale, R., Badu-Apraku, Baffour, Fakorede, M.A.B.

“…Thirty Striga-resistant single–cross maize hybrids plus two checks were evaluated under artificial Striga infestation and Striga-free conditions at 2 locations in Nigeria in 2008 and 2009. The two test locations possessed high discriminating ability. …”
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Performance of cowpea cultivars when grown as an intercrop with maize of contrasting maturities por Ewansiha, S.U., Kamara, A., Onyibe, J.E.

“…A field trial was conducted during the rainy seasons of 2008 and 2009 at Samaru in northern Guinea savannah of Nigeria to determine the performance of semi-determinate and indeterminate cowpea cultivars intercropped with extra early, early and late maize cultivars. …”
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Reduction of Striga hermonthica parasitism on maize using soybean rotation por Carsky, R.J., Berner, B.D., Oyewole, K., Dashiell, Kenton E., Schulz, S.

“…This study was undertaken to quantify the effect of a soybean crop (compared with a sorghum control) on S. hermonthica emergence in subsequent maize in three farmers' fields in northern Nigeria. Soybean cultivar TGx 1740-7F, previously identified as efficacious for S. hermonthica seed germination, was grown at four densities without P fertilizer to test the effect of increasing plant density of soybean on subsequent S. hermonthica parasitism. …”
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Genetic diversity and relationship of indigenous goats of sub-saharan Africa using microsatellite DNA markers. por Muema, E.K.

“…This study was undertaken to determine the genetic structure, relationship and genetic diversity among 18 populations of goats from sub-Saharan Africa including Uganda (4), Tanzania (5), Kenya (2), Mozambique (2), Nigeria (3), Mali (1) and Guinea Bissau (1) using 11 microsatellite markers. …”
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Case studies of Roots, Tubers and Bananas seed systems por Andrade-Piedra, J.L., Bentley, J.W., Almekinders, Conny J.M., Jacobsen, K., Walsh, S., Thiele, Graham

“…The 13 case studies included (1) a potato-growers’ association in Ecuador, (2) a hydroponic seed potato in Peru, (3) a yam seed technology in Nigeria, (4) a banana and plantain project in Ghana, (5) a sweetpotato seed project in Tanzania and (6) one in Rwanda, (7) a seed potato system in Kenya, (8) cassava in Nicaragua, (9) seed potato in Malawi, (10) disease-resistant cassava varieties in seven African countries, (11) a tissue culture banana project, (12) an emergency plantain and banana project in East Africa, and (13) a large cassava seed project in six African countries.…”
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Liming and lime-phosphorus-zinc interactions in two Nigerian Ultisols: I. Interactions in the soil por Friesen, Dennis K., Juo, A.S.R., Miller, M.H.

“…Interactions of lime, phosphorus (P), and zinc (Zn) in two coarse-textured Ultisols from southeastern Nigeria were examined by means of factorial soil incubation and phosphate sorption experiments. …”
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Biplot analysis of diallel crosses of early maturing tropical yellow maize inbreds in stress and nonstress environments por Badu-Apraku, Baffour, Fontem, Lum. A., Akinwale, R., Oyekunle, M.

“…Diallel crosses involving nine tropical early maturing maize (Zea mays L.) inbreds were evaluated at five locations in Nigeria from 2007 to 2009 under drought stress, when Striga infested, and in optimal growing conditions to examine the combining abilities and heterotic patterns and identify appropriate testers. …”
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Morphological and molecular characterisation of Scutellonema species from yam (Dioscorea spp.) and a key to the species of the genus por Kolombia, Y.A., Karssen, G., Viaene, N., Kumar, P. Lava, Joos, L., Coyne, Danny L., Bert, W.

“…In the present study, 46 Scutellonema populations collected from yam rhizosphere and yam tubers in different agro-ecological zones in Ghana and Nigeria were characterised by their morphological features and by sequencing of the D2-D3 region of the 28S rDNA gene and the mitochondrial COI genes. …”
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A new, long-term daily satellite-based rainfall dataset for operational monitoring in Africa por Maidment, Ross I., Grimes, David, Black, Emily, Tarnavsky, Elena, Young, Matthew, Greatrex, Helen, Allan, Richard P, Stein, Thorwald, Nkonde, Edson, Senkunda, Samuel, Alcantara, Edgar M. U.

“…The estimates have been evaluated using ground-based observations from five countries with contrasting rainfall climates (Mozambique, Niger, Nigeria, Uganda, and Zambia) and compared to other satellite-based rainfall estimates. …”
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Registration of striga-resistant tropical extra- early maize population por Badu-Apraku, Baffour, Ewool, M., Yallou, C.G.

“…Results of trials at three locations in Nigeria and Benin Republic, 2006 and 2007, showed that under Striga-infested conditions, the cultivars 2004 TZEE-W Pop STR C4, derived from C4 of TZEE-W Pop STR, and TZEE-W Pop × LD (Set A2), were the most promising in terms of grain yield, low levels of Striga damage and Striga emergence. …”
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