Resultados de búsqueda - "Nigeria"

Chemical treatment of coffee seeds in relation to germination, emergence and control of seed-borne fungi por Filani, G.A.

“…La pérdida de semilla de café antes de la germinación y emergencia se observó que ocurría cuando se visitaron varias fincas cafetaleras en los Estados Oeste y Noreste de Nigeria. El tratamiento de la semilla con fungicidas es el método corriente de control de dichas pérdidas y en los experimentos descritos en este trabajo, se encontró que todos los siete fungicidas usados aumentaron la germinación y emergencia. …”
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Technical Advisory Committee Seventy-Ninth Meeting, 25-29 September 2000: Draft Report of the Meeting por CGIAR Technical Advisory Committee

“…Report of TAC 79 held at IITA in Ibadan, Nigeria, September 25-29, 2000, Emil Javier presiding. …”
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Performance of old and new maize hybrids at high plant densities in the tropical Guinea Savanna por Kamara, A., Menkir, A., Kureh, I., Omoigui, L., Ekeleme, F.

“…Field research was conducted in 2002 and 2003 at the experiment station of the Institute of Agricultural Research, Samaru in the northern Guinea savanna zone, Zaria, Nigeria. Six hybrids—two from 1980s, two from 1990s and two from the2000 eras—were evaluated at three plant densities using a split-plot design with three replications. …”
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A regional experiment to test green manure cover crops and evaluate the role of Internet based networking por Tarawali, G., Markham, R., Carsky, R.J., Keatinge, J.D.H.

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Effect of time to first shoot removal and the amount of shoots removed on the yield and quality of cassava leaves and tubers por Simwambana, M., Ferguson, T.U., Osiru, D., Hahn, S.K.

“…The effect of time to first shoot removal and the amount of shoots removed on the yield and quality of cassava leaves and tubers were investigated in two experiments carried out at IITA, Nigeria using two cassava varieties, TMS 30572 and TMS 91934. …”
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Changes in surface soil properties of a notilled tropical Alfisol due to intercropping maize, cassava and egusi melon por Hulugalle, N., Ezumah, H.C., Leyman, T.

“…(MCM) on no-tilled and handhoe-tilled plots were studied in an Alfisol in southwestern Nigeria. Runoff and erosion in no-tilled plots were negligible and were not affected by cropping system. …”
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Classification of African plantain landraces and banana cultivars using a phenotypic distance index of quantitative descriptors por Ortíz, R., Madsen, S., Vuylsteke, D.R.

“…Data were recorded during the plant and ratoon crops at Onne, a humid forest location in southeastern Nigeria. The phenotypic distance matrix was developed by calculating the average difference between each pair of accessions for all quantitative descriptors. …”
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The influence of maize density on resource use and productivity: an experimental and simulation study por Jagtap, S.S., Alabi, R.T., Adeleye, O.

“…Maize productivity relationships were studied at Ibadan in the derived savanna of south-western Nigeria using the CERES-Maize simulation model at six crop densities ranging from 2.96 to 13.3 plants m-2. …”
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Restructuring cowpea for higher yield por Singh, B.B., Sharma, B.

“…The cowpea breeding programmes are reviewed and achievements at two major centres of cowpea research, i.e. IITA (Nigeria) and IARI (India), are summarized. Earlyand extra early genotypes are always photoperiod-insensitive, medium maturity varieties could be sensitive or neutral today length, while late varieties are always highly sensitive to photoperiod. …”
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Clonal variation in a four year old plantation of Triplochiton scleroxylon K. Schum. and its relation to the predictive test for branching habit por Ladipo, D.O., Leakey, R.R.B., Grace, J.

“…SCHUM after four years of growth in plantations near Ibadan, Nigeria. At normal spacing (2.4 m) mean heights ranged from 5.9 m to 8.1 m, whilst at wide spacing (4.9 m) the range was 5.1 m to 7.8 m, although the trunks had a greater diameter. …”
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Effect of cassavabased cropping systems on physicochemical properties of soil and earthworm casts in a tropical Alfisol por Hulugalle, N.R., Ezuma, H.C.

“…The effects of cassava-based intercropping systems and rotations on physical and chemical properties of earthworm casts and the adjacent soil were studied on an Oxic Paleustalf in south-western Nigeria. Earthworm activity was greater with intercropping although it was not significantly affected by the number of component crops in a mixture. …”
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Resistance of tropical maize inbreds to major virus and viruslike diseases por Brewbaker, J.L., Kim, S.K., Logrono, M.L.

“…The viruses and testing sites included CS (corn stunt mollicute complex) in Mexico, MBSDV (maize black-streaked dwarf virus) in Korea, MCDV (maize chlorotic dwarf machlovirus) in Ohio, MDMV (maize dwarf mosaic potyvirus strain A) in Hawaii and Ohio, SCMV-MB (sugarcane mosaic potyvirus MB) in Ohio, MMV (maize mosaic potyvirus) in Hawaii and MSV (maize streak geminivirus) in Nigeria. Over 100 open-pedigree inbreds, largely of tropical origin, were scored empirically to each virus and ranked on the basis of mean values for all entries. …”
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Breeding for bruchid resistance in cowpea por Singh, B.B., Singh, S.R.

“…This line appears to perform well in Nigeria and is being used as an important parent. …”
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Effect of temperature on development and survival of the legume pod borer, Maruca vitrata (Fabricius) (Lepidoptera: Pyralidae) reared on a semisynthetic diet por Adati, T., Nakamura, S., Tamò, Manuele, Kawazu, K.

“…The development of the larval population in the cowpea field of northern Nigeria was simulated based on daily temperature and the developmental data obtained from the laboratory experiments. …”
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First report of the fall armyworm, Spodoptera frugiperda (J E Smith) (Lepidoptera: Noctuidae), an alien invasive pest on maize in India por Sharanabasappa, S.D., Kalleshwara Swamy, C.M., Asokan, R., Swamy, H.M.M., Maruthi, M.S., Pavithra, H.B., Hegbe, K., Navi, S., Prabhu, S.T., Goergen, Georg E.

“…Phylogenetic analysis has revealed that FAW clustered with Florida (rice strain), Ghana, Nigeria, Uganda on maize. India predominantly being a tropical country favours high rate of multiplication round the year and its high pestiferous nature poses a formidable challenge to Indian agriculture warranting immediate action before it assumes a serious proportion.…”
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Efficacy and costs of handheld sprayers in the subhumid savanna for cogongrass control por Nielsen, O.K., Chikoye, David, Streibig, J.C.

“…In three on-farm experiments on land heavily infested with cogongrass, the effectiveness of a knapsack sprayer (KS), a very low volume sprayer (VLV), and a rope wick (RW) applicator was tested at Ijaye, Nigeria, from 2000 to 2001. The sprayers differed in application method, price, and carrier volume required. …”
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Testcross performance and combining ability of early maturing maize inbreds under multiple-stress environments por Annor, B., Badu-Apraku, Baffour, Nyadanu, D., Akromah, R., Fakorede, M.A.B.

“…Two hundred and five testcrosses were planted with five hybrid checks under Striga-infested, low soil nitrogen, drought and optimal conditions between 2015 and 2016 in Nigeria. The grain yield inheritance under optimal condition was largely regulated by additive gene effect whereas non-additive gene effects largely regulated grain yield under the three stresses. …”
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Does the adoption of soil carbon enhancing practices pay off? Evidence on maize yields from Western Kenya. por Kanyenji, George Magambo, Oluoch-Kosura,Willis, Onyango, Cecilia Moraa, Karanja Ng'ang'a, Stanley

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Association of vertical rootpulling resistance with root lodging and grain yield in selected S1 maize lines derived from a tropical lowNitrogen population por Kamara, A.Y., Kling, J.G., Menkir, A., Ibikunle, O.

“…Twenty maize breeding lines were evaluated in the southern Guinea savannah of Nigeria for vertical root-pulling resistance, yield and root lodging in the 2000 and 2001 cropping seasons. …”
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Youth participation in small-scale fisheries, aquaculture and value chains in Africa and the Asia-Pacific por Arulingam, Indika, Nigussie, Likimyelesh, Senaratna Sellamuttu, Sonali, Debevec, Liza

“…The assessment was conducted in Africa and the Asia-Pacific, with a particular focus on the FISH focal countries of Egypt, Nigeria, Tanzania and Zambia in Africa and Bangladesh, Cambodia, Myanmar and Solomon Islands in the Asia-Pacific. …”
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