Resultados de búsqueda - "International Institute of Tropical Agriculture"

Addressing knowledge gaps in rice growing in eastern uganda por Van Campenhout, Bjorn, Walukano, Wilberforce, Van Asten, Piet

“…Previous research as part of the PASIC project, a policy action project funded by the Embassy of the King-dom of the Netherlands in Uganda and led by the Ministry of Agriculture, Animal Industries and Fisheries (MAAIF) with support of IFPRI, the International Institute of Tropical Agriculture (IITA), and the Economic Policy Research Centre (EPRC), suggests that a lack of knowledge may be an important constraint to sustainable intensification among rice growers in eastern Uganda. …”
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Registration of provitamin A-enriched tropical maize inbred lines por Menkir, A., Meseka, S., Gedil, M., Ojo, T., Mengesha Abera, W.

“…These inbred lines were developed at the International Institute of Tropical Agriculture (IITA) from backcrosses of high β-carotene temperate lines as donors and elite tropical lines as recipients. …”
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Suivi des processes de développement de l’agriculture ouest africaine et de ses performances: une analyse comparative por Taondyandé, Maurice, Yade, Mbaye, Nwafor, Manson

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Quantifying factors limiting soybean yield in Southern Africa: a yield gap decomposition por Omondi, J.O., Chiduwa, M.S., Kyei-Boahen, S., Masikati, P., Nyagumbo, I.

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Genetic characterization of cassava (Manihot esculenta Crantz) traits using argo-morphological characters por Iyanda, S.A.

“…Local cassava accessions (99) were collected mainly from the international institute of tropical agriculture (IITA), Ibadan, Southwestern part of Nigeria. …”
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Multiple shocks, agroecology and resilience of smallholder food security in Northern Ghana por Dagunga, G.

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Sustainable intensification of cassava cropping systems por Omondi, J.O., Gbegbelegbe, S., Kadwala, P., Msukwa, W., Kyei-Boahen, S., Chinwada, P., Akinwale, G., Alene, A.

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Continent-wide releases of neotropical phytoseiids against the exotic cassava green mite in Africa por Yaninek, J.S., Onzo, A., Ojo, J.B.

“…Since the initiation of the classical biological control campaign by the International Institute of Tropical Agriculture to control the exotic mite, Mononychellus tanajoa, 11 species (18 distinct populations) of neotropical phytoseiids have been selected and shipped to Africa for experimental releases. …”
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Development and performance of balck sigatoka-resistant tetraploid hybrids of plantain (Musa spp., AAB group) por Vuylsteke, D.R., Swennen, R.L., Ortiz, R.

“…A strategy to control the black sigatoka disease (Mycosphaerella fijiensis Morelet) of plantain (Musa ssp., AAB grou) in Africa, targeting the incorporation of durable host plant resistance, was initiated at the International Institute of Tropical Agriculture (IITA). The commonly accepted intractability of plantain to genetic improvement has been challenged by the identification of 37 different, seed-fertile plantain cultivars and by the production of 250 hybrids in four years of breeding work. …”
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Rapid cycling recurrent selection for increased carotenoids content in cassava roots por Ceballos, Hernán, Morante, Nelson, Sánchez, Teresa, Ortíz, D., Aragón Gallego, Ingrid J., Chavez, Alba L., Pizarro, M., Calle, Fernando, Dufour, Dominique

“…This finding is relevant for the important ongoing efforts at the International Institute of Tropical Agriculture and African National Programs to release biofortified cassava clones in Africa with adequate levels of dry matter content.…”
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Genetic diversity of provitamin a cassava in Uganda por Esuma, W., Rubaihayo, P.R., Pariyo, A., Kawuki, R.S., Wanjala, Bramwel W., Nzuki, I., Harvey, Jagger J.W., Baguma, Yona K.

“…To elucidate the diversity in Uganda’s core collection of yellow root cassava germplasm, genetic variability was assessed for 64 yellow and white root cassava accessions including Ugandan landraces, and accessions introduced from the International Center for Tropical Agriculture (CIAT) and the International Institute of Tropical Agriculture (IITA). Phenotypic characterization was based on 12 morphological descriptors, total carotenoid content (TCC) and dry matter content (DMC). …”
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Farmers' perceptions of benefits and factors affecting the adoption of improved dual-purpose cowpea in the dry savannas of Nigeria por Kristjanson, Patricia M., Okike, Iheanacho, Tarawali, Shirley A., Singh, B.B., Manyong, Victor M.

“…This study links participatory research methods, geographic information systems (GIS) techniques, village and household-level surveys, and a tobit analysis to examine the adoption and impact issues related to a new technology, improved varieties of dual-purpose cowpea (IDPC), developed by International Institute of Tropical Agriculture (IITA) and International Livestock Research Institute (ILRI) and recently released in Nigeria. …”
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Genetic analysis of gain yield of IITA and CIMMYT earlymaturing maize inbreds under Strigainfested and lowsoil nitrogen environments por Ifie, B.E., Badu-Apraku, Baffour, Gracen, V.E., Danquah, E.Y.

“…Studies were conducted to determine if selection for Striga resistance and/or drought tolerance in early-maturing maize populations improved low-N tolerance in hybrids derived from selected inbreds from International Institute of Tropical Agriculture (IITA) and International Centre for Maize and Wheat Improvement (CIMMYT) under Striga-infested, low-N and optimum environments in Nigeria. …”
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Phosphorus response efficiency in cowpea genotypes por Olaleye, O., Fagbola, O., Abaidoo, Robert C., Ikeorah, N.

“…A screen house experiment was conducted at the International Institute of Tropical Agriculture (IITA) Ibadan, Nigeria. …”
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Cassava mosaic disease resistant clones’ growth and yield are prone to early drought stress por Babirye, A., Ntawuruhunga, Pheneas, Edema, Richard

“…Field trials were planted using 200 CMD resistant clones and 7 local landraces in a randomised complete block design with 3 replicates at the International Institute of Tropical Agriculture (IITA) station, Sendusu in Namulonge (Central Uganda) during the second rains of 2006 (2006B) and the first rains of 2007 (2007A). …”
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Genetic diversity in bambara groundnut (Vigna subterranea (L.) verdc.) as revealed by phenotypic descriptors and DArT marker analysis por Olukolu, B.A., Mayes, S., Stadler, F., Ng, N.Q., Fawole, I., Dominique, D., Azam-Ali, S.N., Abbott, A.G., Kole, C.

“…Genetic diversity of a Bambara groundnut germplasm representing accessions from 25 African countries, maintained at the International Institute of Tropical Agriculture (IITA; Nigeria) was evaluated based on seed patterns, qualitative characters, quantitative traits and Diversity Arrays Technique (DArT) markers. …”
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A participatory evaluation of improved cowpea cultivars in the Guinea and Sudan savanna zones of north east Nigeria por Kamara, A.Y., Ellis-Jones, J., Ekeleme, F., Omoigui, L.O., Amaza, P., Chikoye, David, Dugje, I.Y.

“…A number of improved varieties have been developed by the International Institute of Tropical Agriculture (IITA), combining diverse plant type with resistance or tolerance to several diseases, insect pests, and parasitic weeds and possessing other good agronomic traits. …”
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Assessing the reuse of PICS bags in Jigawa, Kano, and Katsina States of northern Nigeria por Abdoulaye, Tahirou, Ayedun, B., Musa, S.A., Lowenberg-Deboer, J., Baributsa, D.

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Enhancing seed yam supply systems in West Africa por Akoroda, M.O., Cladius-Cole, B., Kikuno, H., Okonkwo, C.C., Aighewi, B.A., Acha, A.I., Asiedu, Robert

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Effects of sole cropping, intercropping and rotation with legume trap-crops on striga control and maize grain yield in farmers' fields in the Guinea savannas por Kureh, I., Kamara, A.Y.

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