Resultados de búsqueda - "Nigeria"

Reaction of Dioscorea alata (water yam) to anthracnose disease in Nigeria por Aduramigba-Modupe, A.O., Asiedu, Robert, Odebode, A.C.

“…Five breeder’s lines and eighteen landraces of D. alata from IITA’s germplasm collection were screened in the field in three agroecological zones (southern guinea savanna, derived savannah and the humid forest) of Nigeria for two years. The objective was to study their reactions to anthracnose disease and investigate the influences of environment (E) and genotype x environment (G x E) interactions on these using the Additive Main Effects and Multiplicative Interaction (AMMI) model. …”
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Presidential intiatives on cassava in Africa: case studies of Ghana and Nigeria por Sanogo, D., Olanrewaju, A.S.

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Cassava postharvest needs assessment survey in Nigeria: synthesis report por Sanni, Lateef O., Wlinma, C., Okecbukwu, R.U., Lemchi, J., Ogbe, F., Akaroda, M., Okom, E., Maziya-Dixon, B.B., Ilona, Paul, Dixon, A.

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Heterotic responses of tetraploid and triploid plantain hybrids in southeast Nigeria por Wilson, V., Tenkouano, A., Pasberg-Gauhl, C., Gauhl, F.

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Cooking Banana consumption patterns in the Plantaingrowing area of Southeastern Nigeria por Tshiunza, M., Lemchi, J., Onyeka, U., Tenkouano, A.

“…Cooking bananas (Musa spp., ABB genome) were intro-duced into Southeastern Nigeria by the International Institute of Tropical Agriculture (IITA) in the mid-1980s as an interim measure to reduce the incidence of black sigatoka disease (caused by the fungus Mycosphaerel-la fijiensis Morelet) on plantain. …”
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Molecular identification of Colletotrichum gloeosporioides causing yam anthracnose in Nigeria por Abang, Mathew M., Winter, S., Green, K., Hoffmann, P., Mignouna, H., Wolf, G.

“…Four forms of Colletotrichum representing three distinct virulence phenotypes were found associated with foliar anthracnose of yam in Nigeria: the highly virulent (= severity of disease) slow-growing grey (SGG); the moderately virulent fast-growing salmon (FGS); the weakly virulent fast-growing grey (FGG); and the moderately virulent fast-growing olive (FGO) morphotype. …”
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Coldspots and Hotspots of Agriculture in Nigeria; Any Hope for Youth and Women? por Abioye, O., Ogunniyi, A.

“…We found that access to land and weak land tenure system; high cost and unavailability of inputs, infrastructural deficit; poor access to information; inadequate extension service and poor pricing policy are the main constraints for the youth and women in Nigeria. However, opportunities such as employment, large market, vast arable land, increasing investment of government and private sector and value addition. …”
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Adoption and impact of dryseason dualpurpose cowpea in the semiarid zone of Nigeria por Inaizumi, H., Singh, B., Sanginga, P., Manyong, Victor M., Adesina, A.A., Tarawali, Shirley A.

“…This paper examines the patterns, levels, rate of adoption, and the impact of one of the most promising varieties (IT89KD-288) introduced to farmers in Kano State, Nigeria. The diffusion and uptake of this variety had been very impressive as it reached over 1500 farmers in 1997, only 4 years after its accidental release to one farmer. …”
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Weed seedbank response to planted fallow and tillage in southwest Nigeria por Ekeleme, F., Chikoye, David, Akobundu, I.O.

“…Mounding as a seedbed preparation method, especially within the improved fallow system, could reduce the high weed pressure experienced by smallholder farmers in southwest Nigeria.…”
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Serological and biological variations of African cassava mosaic virus in Nigeria por Ogbe, F.O., Atiri, G.I., Dixon, Alfred G.O., Thottappilly, G.

“…The humid forest, derived/coastal and southern Guinea savannas where most of the crop is grown in Nigeria had a high number of variants, which makes the agroecologies suitable for the selection of resistant cassava clones against ACMV.…”
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Evaluation of integrated weed management practices in maize in northern Nigeria por Chikoye, David, Schulz, S., Ekeleme, F.

“…Field trials were conducted in 1999 and 2000 in the northern Guinea savanna of Nigeria to evaluate the potential of several weed management practices to reduce early weed competition in maize. …”
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Potassium and magnesium response of cassava grown in an Ultisol in southern Nigeria por Kang, B.T.

“…Results of three consecutive croppings to study the potassium and magnesium responses of two improved cassava cultivars TMS 30395 and 30211 grown on an acid, sandy loam, Ultisol (Typic paleudult) in southern Nigeria is reported. On land newly cleared from Eupatorium fallow a significant potassium response in the first cropping year was observed only with the more vigorous cultivar TMS 30395. …”
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Local weights and measures in Nigeria: a handbook of conversion factors por Kormawa, P.M., Ogundapo, A.T.

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Cassava mosaic disease and its causal agents: the Nigeria situation por Ogbe, F., Atiri, G., Thottappilly, G., Dixon, A.

“…A severe outbreak of the disease was recorded in the late 1980s in Akwa Ibom State in southeastern Nigeria and was curtailed through the use of resistant genotypes. …”
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Plantain production in an alley cropping system on an Ultisol in southeastern Nigeria por Ruhigwa, B.A., Gichuru, M., Swennen, Rony L., Tariah, N.M.

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Agronomic sustainability of different farming systems on Alfisols in Southwestern Nigeria por Lal, R.

“…A longterm experiment was conducted on Alfisols at Ibadan, Nigeria, to assess agricultural productivity and sustainability of different farming systems. …”
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Simulations of growth, development and yield of maize in the transition zone of Nigeria por Jagtap, S.S., Mornu, M., Kang, B.

“…The IBSNAT (Internal Benchmark Sites Network for Agrotechnology Transfer) CERES-Maize model, which stimulates a sole crop of maize, was tested during the 1990 and 1991 growing seasons at Ibadan in southwestern Nigeria. The maize model is designed to simulate plant physiological processes (nutrient and water uptake, transpiration, photosynthesis, organogenesis and biomass partitioning), and predict growth, development and yield in daily time steps in a manner similar to the processes as they are thought to occur in the real plant. …”
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Cowpea, Lima bean, Cassava Yams and Meloidogyne spp. in Nigeria por Caveness, F.E.

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Cassava producers and cassava production in the East Central State of Nigeria por Ezeilo, W.N., Flinn, J.C., Williams, L.B.

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Impact of IITA cassava varieties in Oyo State, Nigeria, 19761985 por Akoroda, M.O., Gebremeskel, T., Oyinlola, A.

“…Cassava improvement research at the International Institute of Tropical Agriculture (I1TA) developed several new varieties during 1976-1985 that entered into the cassava culture of Oyo State of Nigeria where IITA is situated. The focus of this study was to determine the level of overall impact of IITA varieties on cassava cultivation and contribution to food and income of rural farm families in the state based on field travels discussions with farmers. …”
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