Resultados de búsqueda - "International Institute of Tropical Agriculture"

Testing market integration of staple food stuffs in Borno State, Nigeria por Onyeka, U.P., Olayemi, J.K., Kormawa, P.M., Mafimisebi, T.E.

“…The data used came from a database of International Institute of Tropical Agriculture (llTA) Ibadan. The data were on monthly prices of some selected foodstuff in Borno State and covered a period of nine years (1992-2000). …”
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Comparative demography of the spider mite Tetranychus ludeni on two host plants in West Africa por Adango, E., Onzo, A., Hanna, R., Atachi, P., James, B.

“…The experiments were conducted at the International Institute of Tropical Agriculture, Benin, West Africa, in a growth chamber at 27°C, 70% ±10% RH and 12: 12 (L:D). …”
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The ABC of weed management in cassava production in Nigeria: a training manual por Atser, G., Dixon, A., Ekeleme, F., Chikoye, David, Dashiell, Kenton E., Ayankanmi, T.G., Hauser, S., Agada, M., Okwusi, M., Sokoya, G., Olorunmaiye, P., Olojede, A., Usman, H., Kulakow, Peter A., Osunde, T., Adekoya, E.

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Agroeconomic evaluation of black Sigatoka resistant hybrid plantains under smallholder management systems por Lemchi, J., Ezedinma, C.I., Tshiunza, M., Tenkouano, M., Faturoti, B.

“…The International Institute of Tropical Agriculture has succeeded in developing hybrids that are resistant to the disease, and out-yields the best landrace by about 100%. …”
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Whitefly Bemisia tabaci (Homoptera: Aleyrodidae) infestation on cassava genotypes grown at different ecozones in Nigeria por Ariyo, O., Dixon, A., Atiri, G.

“…A range of new cassava elite clones were therefore assessed for the whitefly infestation in the 1999/2000 and 2000/2001 cropping seasons in experimental fields of International Institute of Tropical Agriculture, Ibadan, Nigeria. On each scoring day, between 0600 and 0800 hours when the whiteflies were relatively immobile, adult whitefly populations on the five topmost expanded leaves of cassava cultivars were counted. …”
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A survey of aflatoxin and aflasafe awareness and management among Nigerian poultry producers and feed millers por Johnson, A.M., Abdoulaye, Tahirou, Ayedun, B., Fulton, J.R., Widmar, N.J.O., Akande, A., Bandyopadhyay, Ranajit, Manyong, Victor M.

“…Scientists at the United States Department of Agriculture – Agricultural Resource Service, International Institute of Tropical Agriculture (IITA), and African Agricultural Technology Foundation have developed a biological control product called Aflasafe. …”
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Ex post impact assessment of agricultural research in subSaharan Africa: the IITA experience por Nkamleu, G.B., Coulibaly, O., Sanogo, D., Manyong, Victor M., Alene, Arega D.

“…The International Institute of Tropical Agriculture (IITA) and its research-for-development partners have made substantial contributions to food security, poverty reduction and environmental protection in sub-Saharan Africa. …”
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Cassava mosaic virus disease in East Africa: a dynamic disease in a changing environment por Legg, James P., Thresh, J.M.

“…A corollary of this is that resistance, developed originally in Tanzania between 1934 and 1960, and utilized and supplemented at the International Institute of Tropical Agriculture, Nigeria, since 1971, is providing effective CMD control in current pandemic-affected areas of East Africa. …”
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Physical, chemical, and water absorption characterisitics of tropical maize hybrids por Maziya-Dixon, B.B., Kling, J., Okoruwa, A.

“…Hybrids adapted to West and Central Africa were developed by the International Institute of Tropical Agriculture (IITA) in the 1980s, which enable the establishment of several private seed companies in Nigeria. …”
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Effect of mulch quality on earthworm activity and nutrient supply in the humid tropics por Tian, G., Kang, B., Brussaard, Lijbert

“…An experiment was conducted in 1990 and 1991 at the International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria to study the role of earthworms in the decomposition of plant residue mulches with different qualities. …”
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Effect of planting methods and soil moisture on cassava performance in the semiarid Sudan savanna belt of Nigeria por Okogbenin, Emmanuel, Ekanayake, I.J., Porto, M.C.M.

“…The effects of planting methods and soil moisture on cassava (Manihot esculenta) performance in the Sudan savanna region of Nigeria were assessed under field conditions at the International Institute of Tropical Agriculture (IITA) in Minjibir, Kano State. …”
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Measuring the sustainability and economic viability of tropical farming systems: a model from subSaharan Africa por Ehui, Simeon K., Spencer, D.

“…Using a data set available at the International Institute of Tropical Agriculture, we compute the intertemporal and interspatial total factor productivity indices for four cropping systems in southwestern Nigeria using stock of major soil nutrients as the natural resource stock. …”
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Survey of distribution and farmer perceptions of speargrass Imperata cylindrica in cassava based cropping systems in West Africa por Chikoye, David, Ekeleme, F., Ambe, J.T.

“…The International Institute of Tropical Agriculture and agricultural research institutions from Benin, Cameroon, Ghana, and Nigeria initiated the Ecologically Sustainable Cassava Plant Protection Project to diagnose cassava production constraints and to use this information to develop and implement sustainable plant protection strategies in West Africa. …”
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Cowpea varieties for drought tolerance por Singh, B.B., Matsui, T.

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A USA Africa collaborative strategy for identifying, characterising and developing maize germplasm with resistance to aflatoxin contamination por Menkir, A., Brown, R.L., Bandyopadhyay, Ranajit, Chen, Z.Y., Cleveland, T.E.

“…The Southern Regional Research Center of the United States Department of Agriculture, Agricultural Research Service (USDA-ARS-SRRC) and the International Institute of Tropical Agriculture (IITA) initiated a collaborative breeding project to develop maize germplasm with resistance to aflatoxin accumulation. …”
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Evaluation of cowpea mini core accessions for resistance to flower bud thrips Megalurothrips sjostedti Trybom (Thysanoptera: Thripidae) por Togola, A., Boukar, O., Chamarthi, S., Belko, N., Tamò, Manuele, Oigiangbe, N., Ojo, J., Ibikunle, M., Fatokun, C.

“…The objective of this study was to identify sources of resistance to M. sjostedti among mini core accessions from the largest world cowpea germplasm collection maintained at the International Institute of Tropical Agriculture (IITA). The study was conducted during the 2015 and 2016 cropping seasons where 365 accessions were screened under field conditions. …”
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Cassava, plantain and moringa grown in an Alfisol and their resilience to bush fire in eastern Nigeria por Asadu, C.L.A., Unagwu, B.O., Dixon, A., Okechukwu, R., Ilona, Paul, Asadu, A.N.

“…This study compared the superiority of two improved International Institute of Tropical Agriculture (IITA) cassava varieties (“Yellow root” and “Agric”) over plantain and moringa in a cassava + plantain + moringa intercropping arranged in a randomized complete block design at the University of Nigeria, Nsukka, Research Farm. …”
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Promising high-yielding tetraploid plantain-bred hybrids in west Africa por Tenkouano, A., Lamien, Niéyidouba, Agogbua, J., Amah, D., Swennen, Rony L., Traoré, S., Thiemele, D., Aby, N., Kobenan, K., Gnonhouri, G., Yao, N., Astin, G., Sawadogo-Kabore, S., Tarpaga, V., Issa, W., Lokossou, B., Adjanohoun, A., Amadji, G.L., Adangnitode, S., Igue, K.A.D., Ortíz, R.

“…The goal of this research and development (R&D) undertaken was assessing the development and dissemination of two plantain hybrids PITA 3 and FHIA 21 bred in the 1980s by the International Institute of Tropical Agriculture (IITA, Nigeria) and the Fundación Hondureña de Investigación Agrícola (FHIA, Honduras), respectively. …”
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Association studies between grain yield and agronomic traits of a MARS maize (Zea mays L.) population under drought and non-stress condition por Bankole, F., Menkir, A., Olaoye, G., Olakojo, O., Gedil, Melaku A

“…A total of 150 MARS testcrosses were evaluated under both conditions at the International Institute of Tropical Agriculture substation for two years under during the dry season. …”
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Assessment of genetic diversity for drought, heat and combined drought and heat stress tolerance in early maturing maize landraces por Nelimor, C., Badu-Apraku, Baffour, Tetteh, A.Y., N’guetta, A.S.

“…Thirty-three landraces from Burkina Faso (6), Ghana (6) and Togo (21), and three drought-tolerant populations/varieties from the Maize Improvement Program at the International Institute of Tropical Agriculture were evaluated under three conditions, namely managed drought stress, heat stress and combined drought and heat stress, with optimal growing conditions as control, for two years. …”
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