Resultados de búsqueda - "Nigeria"

Dry and starchy orange-fleshed sweetpotato farmer varieties: Implications for fighting vitamin A defiency in East and Central Africa. por Tumwegamire, Silver, Rubaihayo, P.R., Bonte, D.R. la, Grüneberg, W.J., Kapinga, R., Mwanga, Robert O.M.

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Analysis of microbial taxonomical groups present in maize stalks suppressive to colonization by toxigenic Fusarium spp.: a strategy for the identification of potential antagonists por Köhl, J., Lombaers, C., Moretti, A., Bandyopadhyay, Ranajit, Somma, S., Kastelein, P.

“…The colonization of individual maize stalks originating from fields in The Netherlands, Italy and Nigeria by Fusarium spp. was quantified using specific TaqMan-PCR assays. …”
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Influence of fallow management systems and frequency of cropping on weed growth and crop yield por Akobundu, I.O., Ekeleme, F., Chikoye, David

“…The influence of weeds on maize intercropped with cassava was evaluated in three fallow management systems and four cropping frequencies from 1989 to 1996 in lbadan, Nigeria, West Africa. Fallow management systems consisted of natural bush, Leucaena leucocephala hedgerows and Puerctria phaseoloides lallow. …”
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Wide crosses of Vigna food legumes por Ng, N.Q.

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Effect of extracts from nine plant species found in Africa on the mycelial growth of Aspergillus flavus Link por Cardwell, K., Dongo, L.

“…Extracts and combination of extracts of nine different plant species that are used as traditional medicines and aromatic spices in Nigeria were tested for the effect in vitro on the growth of Aspergillus flavus. …”
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Cassava based foods: how safe are they? por Bokanga, M., Otoo, E.

“…Cassava production in Africa has increased by 12.5% between 1988 and 1990 with Nigeria becoming the largest cassava producer in the world. …”
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Processing of cassava leaves for human consumption por Bokanga, M.

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Importance of cassava processing for production in subSaharan Africa por Nweke, F.I., Bokanga, M.

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Genotypic stability and adaptability: analytical methods and implications for cassava breeding for low input agriculture por Dixon, A., Asiedu, Robert, Hahn, S.K.

“…This paper examines the concepts of genotypic stability and adaptability in cassava, using data from several years of cassava multi-locational trials in Nigeria. The cassava breeding scheme at IITA is also described.…”
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Framework for orientation of Striga research at IITA por Cardwell, K.F., Smith, J., Weber, G., Awad, A.

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Effect of stem borer Eldana saccharina (Lepidoptera: Pyralidae) on the yield of maize por Bosque Pérez, N.A., Mareck, J.H.

“…Field experiments were conducted in the dry season of 1985–86 and the first and second rainy seasons of 1986 at Ibadan, Nigeria, to assess the level of damage and yield reductions caused by Eldana saccharina Walker to maize. …”
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Shoottip culture and thirdcountry quarantine to facilitate the introduction of new Musa germplasm into West Africa por Vuylsteke, D.R., Schoofs, J., Swennen, Rony L., Adejare, G., Ayodele, M., Langhe, E. de

“…More than 270 Musa accessions have been introduced into Nigeria, including 33 with Black Sigoka resistance. …”
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Tetraploids, triploids and 2n pollen from diploid interspecific crosses with cassava por Hahn, S.K., Bai, K.V., Asiedu, Robert

“…The tetraploids and triploids were very vigorous and one of the tetraploids performed as well as the best variety in uniform yield trials conducted in Nigeria. These spontaneous polypoloids provide greater genetic variation and offer an opportunity to breed radically new cassava varieties. …”
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First report of Tuta absoluta Meyrick (Lepidoptera: Gelechiidae) in the Republic of Benin por Karlsson, M.F., Sikirou, R., Mama, S.S., Zannou, J.A., Georgen, G.

“…Tomato plants were regularly inspected and pheromone traps placed in tomato-producing localities in northern, southern and central Benin, including fields close to the border with Niger and Nigeria. In late 2017 and beginning of 2018 Gelechiidae moths were obtained from both the traps and the reared plant material. …”
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The International Institute of Tropical Agriculture (IITA) por International Institute of Tropical Agriculture

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CGIAR Research Program on Fish - Plan of Work and Budget 2020 por CGIAR Research Program on Fish

“…Country-level theories of change (ToCs) were developed in the following FISH focal countries in 2018: Bangladesh, Cambodia, Myanmar and Solomon Islands in the Asia-Pacific; and Egypt, Nigeria and Zambia in Africa. In 2019, informed by these country-level ToCs, the FISH Management Committee (MC) conducted a final review of the flagships (Sustainable Aquaculture (FP1) and Sustaining Small-Scale Fisheries (FP2)) and overall program ToC with reference to: (1) plausibility of delivery of planned research outputs and outcomes, (2) efficacy of pathways toward development outcomes and targets, (3) key change mechanisms and scaling strategies, and (4) research prioritization and investments. …”
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Potential of herbaceous legume cover crop fallow systems in the savanna zone por Carsky, R.J.

“…A set of herbaceous legumes was screened in the northern Guinea savanna zone of Nigeria in 1993-1994 to assess the ecological adaptability of the species and to observe characteristics that would influence their suitability in farming or cropping systems. …”
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Phosphate sorption of some Nigerian soils and its effect on cation exchange capacity por Juo, A.S.R., Maduakor, H.O.

“…The sandy forest soils derived from basement complex rocks and from coastal sediments in south‐western Nigeria require relatively low amounts of phosphate for maximum crop yield as determined by the Langmuir isotherm.Phosphate sorption resulted in significant increases in cation exchange capacity of the soils studied. …”
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Poverty mapping case studies por Hyman, Glenn G., Larrea, Carlos, Farrow, Andrew

“…The countries included in the project were Bangladesh, Ecuador, Kenya, Malawi, Mexico, Nigeria, Sri Lanka and Vietnam. The data set also includes data for Honduras. …”
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How does climate exacerbate root causes of conflict in Mali? An impact pathway analysis por Madurga Lopez, Ignacio M., Dutta Gupta, Tanaya, Läderach, Peter R.D., Pacillo, Grazia

“…This publication is part of a factsheet series reporting on the findings of the CGIAR FOCUS Climate Security Observatory work in Africa (Kenya, Mali, Nigeria, Senegal, Sudan, Uganda, Zimbabwe). The research is centered around 5 questions: 1. …”
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