Resultados de búsqueda - Wundt~

On farm testing of integrated nutrient management strategies in Eastern Uganda por Esilaba, Anthony O., Byalebeka, J.B., Delve, Robert J., Okalebo, JR, Ssenyange, D, Mbalule, M, Ssali, H.

“…Following the diagnosis stage and exposure visits to other farmer groups working on integrated soil fertility projects, the farmers designed 11 experiments for on-farm testing. One hundred and twenty farmers then chose, for participatory technology development, sub-sets of these 11 experiments, based on the major agricultural constraints and the potential solutions identified and prioritised by the farmers. …”
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The management of tree genetic resources and the livelihoods of rural communities in the tropics: non-timber forest products, smallholder agroforestry practices and tree commodity... por Dawson, Ian K., Leakey, R., Clement, C.R., Weber, John C., Cornelius, Jonathan P., Roshetko, James M., Vinceti, B., Kalinganire, A., Tchoundjeu, Z., Masters, E., Jamnadass, Ramni H.

“…Products and services provided by trees in forests and farmland support the needs and promote the wellbeing of hundreds of millions of people in the tropics. Value depends on managing both the diversity of tree species present in landscapes and the genetic variation within these species. …”
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Assessment of the relationship between soil properties, Striga hermonthica infestation and the on-farm yields of maize in the dry Savannas of Nigeria por Ekeleme, F., Jibrin, J. M., Kamara, A.Y., Oluoch, M., Samndi, A.M., Fagge, A.A.

“…In Kano State, Striga incidence ranged from 0 to 100%. One hundred percent of the maize fields sampled in Bauchi State had Striga. …”
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Characterization of smallholder pig breeding practices within a rural commune of North Central Vietnam por Ieda, N, Quang Van Bui, Nga Nguyen Thi Duong, Lapar, Ma. Lucila, Marshall, Karen

“…This case study focused on a pig production system in a rural area of North Central Vietnam, with a focus on describing household pig breeding practices and estimating herd demographic parameters, particularly on reproduction. One hundred five households undertaking small-scale piglet production were surveyed, with information gathered on 3268 individual pigs. …”
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Evaluation of sweetpotato accessions for end-user preferred traits improvement por Baafi, E., Gracen, V.E., Blay, E.T., Ofori, K., Manu-Aduening, J.A., Carey, E.E.

“…This study assessed the genetic diversity and differentiation in sweetpotato accessions in Ghana to guide selection for genetic improvement on beta-carotene, dry matter and sugar contents to promote increased utilization. One hundred and fifteen sweetpotato accessions from four different sources, which were the International Potato Centre (CIP) collection, local collection from farmers’ field, local improved varieties, and local and exotic collections from the National Agricultural Research Programmes were studied using 40 agro-morphological and physico-chemical traits, and 25 SSR markers. …”
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Genetic diversity of tropical early-maturing maize inbreds and their performance in hybrid combinations under drought and optimum growing conditions por Oyekunle, M., Badu-Apraku, Baffour, Hearne, S., Franco, J.

“…Hybrid development is enhanced by the assessment and understanding of genetic diversity and distance within inbreds. One hundred and fifty hybrids derived from 30 early-maturing inbreds plus six checks were evaluated at three locations in Nigeria for 2 years to assess their performance under drought and well-watered conditions. …”
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Folk taxonomy and traditional management of cassava (Manihot esculenta Crantz) diversity in southern and central Benin por Agre, A.P., Gueye, B., Adjatin, A., Dansi, M., Bathacharjee, R., Rabbi, Ismail Y., Gedil, Melaku A

“…Data were collected from one hundred and ninety eight (198) respondents and analyzed using descriptive statistics. …”
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Population structure and Aflatoxin production by Aspergillus Sect. Flavi from maize in Nigeria and Ghana por Perrone, G., Haidukowski, M., Stea, G., Epifani, F., Bandyopadhyay, Ranajit, Leslie, J., Logrieco, A.

“…Farm samples were more highly contaminated than were samples fromthe market, in terms of both the percentage of the samples contaminated and the level of mycotoxincontamination. One-hundred-and-thirty-five strains representative of the 1163 strains collected wereidentified by using a multilocus sequence analysis of portions of the genes encoding calmodulin, btubulinand actin, and evaluated for aflatoxin production. …”
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Genetic variation of postharvest physiological deterioration susceptibility in a cassava germplasm por Moyib, K.O., Mkumbira, J., Odunola, O., Dixon, A., Akoroda, M.O., Kulakow, Peter A.

“…The present study sourced for PPD tolerance from different genetic resources available within a cassava germplasm. Six hundred and twelve cassava accessions within International Institute of Tropical Agriculture (IITA)-Ibadan germplasm were evaluated 2, 4, 6, and 8 days after harvest (DAH) for PPD and rate of PPD per day (PPD d–1) over the evaluation dates. …”
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A high-throughput regeneration and transformation platform for production of genetically modified banana por Tripathi, J.N., Oduor, R.O., Tripathi, L.

“…The robust transformation platform was successfully used to generate hundreds of transgenic lines with disease resistance. …”
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Risk factors associated with contagious caprine pleuro-pneumonia in goats in pastoral areas in the Rift Valley region of Kenya por Kipronoh, K.A., Ombui, J.N., Binepal, Y.S., Wesonga, H.O., Gitonga, E., Thuranira, E., Kiara, Henry K.

“…Of the 54 flocks, 49 (90.7%) presented at least one sero-positive animal. Two hundred and four of the 432 goats tested sero-positive at monoclonal antibody based competitive Enzyme-linked immuno-sorbent assay (c-ELISA), hence a sero-prevalence of 47.2% (95% CI = 42.5– 51.9). …”
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Fertilizer use and management practices among maize and cowpea smallholder farmers in Ghana por Okebalama, C.B., Safo, E.Y., Yeboah, E., Abaidoo, Robert C., Logah, V.

“…Oral interview with structured questionnaire was used to interview one hundred farmers each at two locations. The results showed that farmers are aware of the use of fertilizer to increase crop yield. …”
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High-density molecular characterization and association mapping in Ethiopian durum wheat landraces reveals high diversity and potential for wheat breeding por Mengistu, D., Kidane, Y., Catellani, M., Frascaroli, E., Fadda, Carlo, Dell'Acqua, M., Pe, E.

“…Here, we report the extensive molecular and phenotypic characterization of hundreds of Ethiopian durum wheat landraces and several Ethiopian improved lines. …”
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Capacity building on agricultural insurance for aggregators in Northern Ghana por Greatrex, Helen, Narh, Stephen, Tettey, Abigail, Yeboah, Angelina, Mahama, Aswad

“…Less attention has been paid to small and medium level aggregators, who might have tens or hundreds of acres, or have a relationship with a smaller number of out growers (tens to thousands). …”
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Isolation and characterization of resistant gene analogs in cassava, wild Manihot species, and castor bean (Ricinus communis) por Gedil, Melaku A, Kumar, M., Igwe, D.

“…Cassava, Manihot esculenta, is one of the major food crops in sub-Saharan Africa (SSA) providing the bulk of dietary calories to hundreds of millions of households. Two viral diseases, namely cassava mosaic disease (CMD) and cassava brown streak disease (CBSD) pose a serious threat to cassava production. …”
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Inter-epidemic Rift Valley fever virus seroconversions in an irrigation scheme in Bura, south-east Kenya por Mbotha, D., Bett, Bernard K., Kairu-Wanyoike, S.W., Grace, Delia, Kihara, Absolomon, Wainaina, M., Hoppenheit, A., Clausen, Peter-Henning, Lindahl, Johanna F.

“…The objectives were to investigate the possibility of low-level RVFV transmission in these ecosystems during an inter-epidemic period (IEP), examine variations in RVFV seroprevalence in sheep and goats and determine the risk factors for transmission. Three hundred and sixteen small ruminants were selected and tested for immunoglobulin G antibodies against RVFV nucleoprotein using a competitive ELISA during six visits. …”
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Gene flow among different teosinte taxa and into the domesticated maize gene pool por Warburton, Marilyn L., Wilkes, G., Taba, S., Charcosset, A., Mir, C., Dumas, F., Madur, D., Dreisigacker, S., Bedoya, C., Boddupalli, P.M., Xie, C.X., Hearne, S., Franco, J.

“…Diversity in maize can be increased via gene flow from teosinte, which has certainly occurred from various taxa, but the rate of flow from different teosinte taxa and the final impact on maize evolution has been difficult to measure. One hundred populations from six Zea taxa, both domesticated (maize) and wild (teosinte), including domesticated landraces from Asia, Africa, and the Americas, were genotyped with 17 SSR markers using 15 individuals per population. …”
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Control of banana Xanthomonas wilt disease using genetic engineering por Tripathi, L., Tripathi, J.N., Tushemereirwe, Wilberforce K.

“…The partners, IITA, the NationalAgriculture Research Organization (NARO) in Uganda and AATF, have signed atripartite agreement for development of BXW-resistant transgenic bananas.Hundreds of transgenic lines of banana cultivars have been generated, which arescreened for disease resistance under laboratory conditions. …”
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Evaluation of the dissemination of new Banana (Musa spp.) Technologies in Central Ghana - the role of technology characteristics por Dzomeku, B.M., Staver, Charles, Aflakpui, G.K.S., Sanogo, D., Garming, H., Ankomah, A.A., Darkey, S.K.

“…This study was conducted in the two Assin districts of the Central region of Ghana to examine factors that influence the adoption of new banana (Musa spp.) hybrids and other production technologies and to assess the impact of these technologies on smallholder farmers’ livelihoods. One hundred thirty households, comprising of 100 farmers from five communities that participated in the technologies dissemination and 30 farmers from three non-participating communities, were selected randomly and interviewed using structured questionnaires. …”
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Potentials of cowpea (Vigna unguiculata) for dry season seed and fodder production in Sahelian sandy soil of Niger por Saidou, A.K., Ajeigbe, Hakeem A., Hide, O., Satoshi, T., Singh, B.B.

“…At a current (2009) market price of 750-900 F CFA and 900 to 1000/kg (US$ = 480 F CFA) of dry grain and fodder bundle respectively, dry season cowpea production stands first as an alternative for farmers to increased income, grain, seeds, and fodder and enrich the soil for the next rainy season. …”
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