Resultados de búsqueda - "Uganda"

The SmartAg Partner: July-September 2014 por Atakos, Vivian, Radeny, Maren A.O., Mungai, C, Kinyangi, James

“…Read about the importance of gender responsive adaptation and mitigation policies and strategies in ensuring a productive agriculture sector. In Uganda, the government is working to prioritize agriculture adaptation actions from the National Adaptation Programme of Action (NAPA). …”
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Applicability of near-infrared reflectance spectroscopy (NIRS) for determination of crude protein content in cowpea (Vigna unguiculata) leaves por Towett, Erick K., Alex, M., Shepherd, Keith D., Polreich, S., Aynekulu, Ermias, Maass, Brigitte L.

“…We also address the optimization of NIRS to perform the analysis of crude protein (CP) content in a variety of cowpea accessions (n = 561) representing genotypic variation as well as grown in a wide range of environmental conditions in Tanzania and Uganda. The samples were submitted to NIRS analysis and a predictive calibration model developed. …”
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Seed aid for seed security: advice for practitioners por International Center for Tropical Agriculture, Catholic Relief Services, CARE Norway

“…The case studies were undertaken in Burundi, Ethiopia, Kenya, Malawi, Mozambique, Uganda and Zimbabwe. No. 3 introduces the general concept of seed security and differentiates parameters of availability, access, and seed and variety quality, as well as distinguishing chronic from acute stress. …”
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Aide semenciere pour une securite semenciere: a l'intention des intervenants por International Center for Tropical Agriculture

“…The case studies were undertaken in Burundi, Ethiopia, Kenya, Malawi, Mozambique, Uganda and Zimbabwe. No. 3 introduces the general concept of seed security and differentiates parameters of availability, access, and seed and variety quality, as well as distinguishing chronic from acute stress. …”
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Progress on implementation of an accelerated sweetpotato breeding scheme in Ghana. por Obeng-Bio, E., Asafu-Agyei, J.N., Adofo, K., Asamoah-Obeng, N., Awoodzie, J.K., Yusif, A., Carey, E.E.

“…In 2010, roughly 250 genotypes from 34 families, from Ghana, Uganda and Kenya were evaluated at 3 locations, and high yielding, virus resistant genotypes were selected, some at 2 or more locations. …”
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Molecular detection and genetic characterization of kobuviruses and astroviruses in asymptomatic local pigs in East Africa por Amimo, Joshua O., Okoth, S., Jung'a, J.O., Ogara, W.O., Njahira, Moses N., Wang, Q., Vlasova, A.N., Saif, L.J., Djikeng, Appolinaire

“…We demonstrated that porcine kobuvirus infections exist in indigenous pigs in Kenya and Uganda and that the prevalence was higher in young piglets than older pigs: nursing piglets (15 %), post-weaning (3-month-old) pigs (17 %), 4-month-old pigs (10 %). …”
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Maize Lethal Necrosis (MLN), an emerging threat to maize-based food security in sub-Saharan Africa por Mahuku, George S., Lockhart, B.E.L., Wanjala, Bramwel W., Jones, M., Kimunye, J.N., Stewart, L.R., Cassone, B.J., Sevgan, S., Nyasani, J.O., Kusia, E., Kumar, P. Lava, Niblett, C.L., Kiggundu, A., Asea, G., Pappu, H.R., Wangai, A., Boddupalli, P.M., Redinbaugh, M.G.

“…The disease has since been confirmed in Rwanda and the Democratic Republic of Congo, and similar symptoms have been reported in Tanzania, Uganda, South Sudan, and Ethiopia. In 2012, yield losses of up to 90% resulted in an estimated grain loss of 126,000 metric tons valued at $52 million in Kenya alone. …”
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Biophysical and crop management gradients limiting yields of east African highland banana (Musa spp. AAAEA) within farms in low input cropping systems por Alou, I.N., Asten, Piet J.A. van, Tenywa, M.M.

“…Soil status, nutrient levels, pests, crop management from 150 mats within close (CH), mid (MH) and remote (RH) distances of 10 homesteads in Butare, Southwest Uganda were monitored from 2006-2008. Actual yields (14.3 Mg ha-1 yr-1) of dominant cultivar (cv. …”
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Epidemiological assessment of cassava mosaic disease in Central African Republic reveals the importance of mixed viral infection and poor health of plant cuttings por Zinga, I., Chiroleu, F., Legg, James P., Lefeuvre, P., Komba, E., Semballa, S., Yandia, S.P., Mandakombo, N., Reynaud, B., Lett, J.

“…PCR amplification and direct sequencing of partial fragments of the Rep ORF revealed that the causal agents of CMD in CAR are African cassava mosaic virus (ACMV) and the Uganda strain of East African cassava mosaic virus (EACMV-UG). …”
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Nitrogenneutrality: a step towards sustainability por Leip, A., Leach, A., Musinguzi, P., Tumwesigye, T., Olupot, G., Tenywa, J.S., Mudiope, J., Hutton, O., Cordovil, C.M., Bekunda, Mateete A., Galloway, J.

“…A total of US$ 3050 was collected from the participants and used to offset the conference's N footprint by supporting the UN Millennium Village cluster Ruhiira in South-Western Uganda. The concept needs further development in particular to better incorporate the spatio-temporal variability of impacts and to standardize the methods to quantify the required N offset to neutralize the Nr releases impact. …”
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Abundance, diversity and geographic distribution of cassava mosaic disease pandemic-associated Bemisia tabaci in Tanzania por Tajebe, L., Boni, S.B., Guastella, D., Cavalieri, V., Lund, O., Rugumamu, C.P., Rapisarda, Carmelo, Legg, James P.

“…In East and Central Africa, a severe CMD pandemic that spread from Uganda in the late 1980s still continues to devastate cassava crops. …”
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Genetic diversity of cassava (Manihot esculenta Crantz) landraces and cultivars from southern, eastern and central Africa por Kawuki, Robert S., Herselman, L., Labuschagne, Maryke T., Nzuki, I., Ralimanana, I., Bidiaka, M., Kanyange, M.C., Gashaka, G., Masumba, E., Mkamilo, G.S., Gethi, J., Wanjala, Bramwel W., Zacarias, A., Madabula, F., Ferguson, Morag E.

“…Here, we report on the nature and extent of genetic variation that exists within 1401 cassava varieties from seven countries: Tanzania (270 genotypes); Uganda (268); Kenya (234); Rwanda (184); Democratic Republic of Congo (DRC; 177); Madagascar (186); Mozambique (82). …”
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Spread of Xanthomonas campestris pv. musacearum in banana plants: implications for management of banana Xanthomonas wilt disease por Adikini, S., Beed, Fenton D., Tusiime, Geoffrey, Tripathi, L., Kyamanywa, S., Lewis-Ivey, M., Miller, S.A.

“…Banana Xanthomonas wilt (BXW) caused by Xanthomonas campestris pv. musacearum (Xcm) is a devastating disease of bananas in Uganda and across the Great Lakes region of East and Central Africa. …”
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Evidence-based opportunities for out-scaling climate-smart agriculture in East Africa por Lamanna, Christine, Namoi, Nictor, Kimaro, Anthony A., Mpanda, Mathew, Egeru, Anthony, Okia, Clement, Ramírez Villegas, Julián Armando, Mwongera, Caroline, Ampaire, Edidah L., Asten, Piet J.A. van, Winowiecki, Leigh Ann, Läderach, Peter R.D., Rosenstock, Todd S.

“…We conducted a systematic review of 175 peer-reviewed and grey literature studies, to gauge the impact of over seventy potential CSA practices on CSA outcomes in Tanzania and Uganda. Using a total of 6,342 observations, we found that practice impacts were highly context (i.e. farming system and location) specific. …”
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Critical soil organic carbon range for optimal crop response to mineral fertiliser nitrogen on a ferralsol por Musinguzi, P., Ebanyat, Peter, Tenywa, J.S., Basamba, T.A.A., Tenywa, M.M., Mubiru, D.N.

“…A study was conducted on a Ferralsol in sub-humid Uganda to explore the critical range of SOC concentrations and associated fractions for optimal maize (Zea mays L.) yield response to applied mineral N fertiliser. …”
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Antimicrobial use in African agriculture and its implications por Grace, Delia, Lindahl, Johanna F., Hung Nguyen-Viet, Unger, Fred, Robinson, Timothy P.

“…We present a review of antimicrobial use and surveillance in east African agriculture along recent case studies from free-range pig systems in Uganda; dairy in Kenya, and pastoral small ruminant systems in Ethiopia. …”
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Determination of the main reservoir hosts of West Nile virus among wild birds in Tana River County, Kenya por Nyamwaya, D.K.

“…This virus was first isolated in Uganda with subsequent reports of epidemics globally. …”
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Characterization of trypanosoma congolense stocks from the West and East African regions using molecular karyotyping. por Waihenya, R.

“…Trypanosoma congolense stocks from West Africa (Gambia, Burkina Faso and Nigeria) and East Africa (Kenya and Uganda) were grown and cloned in irradiated mice. …”
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Quantitative digital imaging of banana growth suppression by plant parasitic nematodes por Roderick, H., Mbiru, E., Coyne, Danny L., Tripathi, L., Atkinson, H.J.

“…A digital camera fitted with a hemispherical lens was used to generate canopy leaf area index (LAI) values for a banana (Musa spp.) field trial with the aim of establishing a method for monitoring stresses on tall crop plants. The trial in Uganda consisted of two cultivars susceptible to nematodes, a plantain, Gonja manjaya and an East African Highland banana, Mbwazirume, plus a nematode resistant dessert banana, Yangambi km5. …”
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Inheritance of resistance to common bacterial blight in four selected common bean (Phaseolus vulgaris L.) genotypes por Alladassi, Boris M.E., Nkalubo, Stanley T., Mukankusi, Clare Mugisha, Mwale, Eric S., Gibson, Paul, Edema, Richard, Urrea, Carlos A., Kelly, James D., Rubaihayo, P.R.

“…Common bacterial blight (CBB) is the most serious bacterial disease of common bean in Uganda. It causes severe yield losses of up to 62%. …”
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