Resultados de búsqueda - "Savannah"

Countrywide distribution of fauna association with the cassva green mite (Mononychellus tanajoa) in Cameroon por Tchuanyo, M., Yaninek, John S., Hammond, W., Onzo, A., Lienou, L.

“…This pest was found everywhere, with the highest densities in the Highland savannah (230 actives/leaf) and transitional zone (143 actives/leaf). …”
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First report of Aspergillus allahabadii Mehrotra and Agnihotri in vegetable fields in Northern Benin (West-Africa) por Affokpon, A., Coyne, Danny L., Tossou, C., Coosemans, J.

“…Three populations were recovered from separate fields in the Guinea savannah region from tomato and/or cabbage. The populations were morphologically identified to genus level under the microscope and to species level from molecular sequences based on ITS 1 and ITS 2 regions using purified fungi. …”
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Mapping and Inventory of Forest Fires in Andhra Pradesh, India: Current Status and Conservation Needs por Reddy, C.S, Krishna,P.H, Anitha, K., Joseph, S.

“…Higher elevation areas which are predominantly dominated by savannah and woodlands experienced higher fire occurrence in comparison with lower elevation areas. …”
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Agronomic performance of maize (Zea mays L.) breeding lines derived from a low nitrogen maize population por Kamara, A.Y., Kling, J.G., Menkir, A., Ibikunle, O.

“…Eighteen S1 lines of maize (Zea mays L.) derived from a low nitrogen tolerant pool and two inbred lines were evaluated for agronomic performance under moderate N conditions in the southern Guinea savannah of Nigeria. Generally, the breeding lines differed in yield, growth, vertical rootpulling resistance, N-uptake and N-use efficiency. …”
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KASPar SNP genetic map of cassava for QTL discovery of productivity traits in moderate drought stress environment in Africa por Ewa, F., Asiwe, J.A.N., Okogbenin, Emmanuel, Ogbonna, A.C., Egesi, Chiedozie N.

“…While its production has rapidly expanded to the dry savannahs of the continent, productivity is low in this ecology due to drought by farmers, extending the growth cycle from 12 months to 18, and sometimes 24 months to ensure better harvests. …”
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Productivity of cowpea genotype under maize intercropping system in the northern and southern Guinea Savanna of Nigeria por Bukar, M.A.

“…A field experiment was conducted in 2018 rainy season at the International Institute of Agriculture Research Farms at Abuja and Zaria to know the adaptability of cowpea genotype to maize canopy in northern and southern Guinea savannah of Nigeria. The experiment consisted of 12 treatment combinations; of three cowpea varieties (SAMPEA 11, SAMPEA 14, and UAM09-126-19-2) in two cropping systems (sole and intercropped with EVDT99) and at two relay dates (5 and 8 WAS). …”
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Changes in Ghanaian farming systems: Stagnation or a quiet transformation? por Houssou, Nazaire, Johnson, Michael E., Kolavalli, Shashidhara, Asante-Addo, Collins

“…The paper examines changes in farming systems and the role of various endogenous and exogenous factors in driving the conversion of arable lands to agricultural uses in four villages within two agroecologically distinct zones of Ghana: the Guinea Savannah and Transition zones. Using essentially historical narratives and land-cover maps supplemented with quantitative data at regional levels, the research shows that farming has intensified in the villages, while farmers have increased their farm size in response to factors such as population growth, market access, and changing rural lifestyle. …”
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Spatial and multivariate assessment of access to water for sustainable agriculture intensification in semi-arid Ghana por Boateng, E. N. K., Atampugre, Gerald, Mariwah, S., Mensah, I., Johnson, F. A., Furst, C., Nyarko, B. K.

“…This study investigates smallholder farmers’ access to water for SAI in the Guinea and Sudan Savannah Agroecological Zones (SSAZ) of Ghana. Data were collected from 698 smallholder farmers across 25 communities using a structured questionnaire and geospatial techniques. …”
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Improving the resilience and productivity of smallholder farming systems through intercropping and data-driven fertilizer Recommendations in Northern Ghana por Jizorkuwie, Abdul-latif Baamonyor, Masoud, Jalaludeen, Yeboah, Patricia Amankwaa, Ofosu-ampong, Kingsley, Abera, Wuletawu

“…The study shows that tailored fertilizer recommendations in combination with maize-cowpea intercropping can contribute to sustainable production and help bridge the yield gaps and improve food security in the Guinea savannah agroecological zone.…”
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Improving the resilience and productivity of smallholder farming systems through intercropping and data-driven fertilizer recommendations in Northern Ghana por Jizorkuwie, Abdul-latif Baamonyor, Masoud, Jalaludeen, Yeboah, Patricia Amankwaa, Ofosu-ampong, Kingsley, Abera, Wuletawu

“…The study shows that tailored fertilizer recommendations in combination with maize-cowpea intercropping can contribute to sustainable production and help bridge the yield gaps and improve food security in the Guinea savannah agroecological zone.…”
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Long-term occurrence of Trypanosoma congolense resistant to diminazene, isometamidium and homidium in cattle at Ghibe, Ethiopia por Mulugeta, W., Wilkes, J., Mulatu, W., Majiwa, Phelix A.O., Masake, R., Peregrine, A.S.

“…Ten trypanosome isolates were collected at random from cattle at Ghibe, Ethiopia, in February 1993 and all shown to be savannah-type Trypanosoma congolense. When inoculated into naive Boran (Bos indicus) calves, all 10 isolates were resistant to diminazene aceturate (Berenil), isometamidium chloride (Samorin) and homidium chloride (Novidium) at doses of 7.0 mg/kg body weight (b.w.), 0.5 mg/kg b.w. and 1.0 mg/kg b.w., respectively. …”
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Communicating the probabilistic seasonal forecast for a better farming management and decisions at Kaffrine, Senegal por Ndiaye, Ousmane

“…Kaffrine is located in the midst of the transition zone from the Sahelian towards the Sudan Savannah zone with annual rainfall averages of around 500 mm in the northern, 600 mm at Kaffrine, and around 800 mm in the southwestern part of the area. …”
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Climatic growing conditions of Jatropha curcas L por Maes, W.H., Trabucco, Antonio, Achten, W.M.J., Muys, B.

“…Most specimens (87%) were found in tropical savannah and monsoon climates (Am, Aw) and in temperate climates without dry season and with hot summer (Cfa), while very few were found in semi-arid (BS) and none in arid climates (BW). …”
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The dispersal ecology of Rhodesian sleeping sickness following its introduction to a new area por Wardrop, N.A., Fèvre, Eric M., Atkinson, P.M., Welburn, S.C.

“…Significant relationships were detected between Rhodesian sleeping sickness and selected factors, including elevation and the proportion of land which was “seasonally flooding grassland” or “woodlands and dense savannah.” Temporal trends in these relationships were detected, illustrating the dispersal of Rhodesian sleeping sickness into more ‘suitable’ areas over time, with diminishing dependence on the point of introduction in concurrence with an increasing dependence on environmental and landscape factors. …”
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Survey of the symptoms and viruses associated with cowpea (Vigna unguiculata (L.)) in the agroecological zones of Kwara State, Nigeria por Aliyu, T.H., Balogun, O.S., Kumar, L.

“…A comprehensive field survey was carried out in 2011 spanning thirty locations within the forest and savannah agroecologies of Kwara State, Nigeria. This was with the objective of having an overview of the prevalence of virus disease symptoms and to specifically identify the viruses infecting cowpea (Vigna unguiculata .L.) in Kwara State. …”
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Variation in nutrient and antinutrient contents of tubers from yellow yam (Dioscorea cayenensis) genotypes grown at two locations por Akin-Idowu, P.E., Odunola, O.A., Asiedu, Robert, Maziya-Dixon, B.B., Uwaifo, A.O.

“…Eight genotypes of yellow yam (Dioscorea cayenensis) were planted at locations in two major yam-growing agroecologies of Nigeria (Onne in the humid forest zone and Ibadan in the forest/savannah transition zone) for assessment of the contents of minerals and antinutrients. …”
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Landscape diversity and associated coping strategies during food shortage periods: evidence from the Sudano-Sahelian region of Burkina Faso por Koffi, C.K., Djoudi, H., Gautier, D.

“…People living in a landscape with a savannah matrix (Sorobouly) rely on fuelwood trade to purchase cereals, while those living in a landscape with a parkland matrix (Kalembouly) rely on shea nuts. …”
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Smallholder agroprocessors' willingness to pay for value-added solid-waste management solutions por Omilani, O., Abass, A., Okoruwa, V.O.

“…We employed a multistage sampling procedure to obtain primary data from 403 cassava processors from the forest and Guinea savannah zones of Nigeria. Contingent valuation and logistic regression were used to determine the willingness of the processors to pay for improved waste management options and the factors influencing their decision on the type of waste management system adopted and willingness to pay for a value-added solid-waste management system option. …”
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Detection and diversity of maize yellow mosaic virus infecting maize in Nigeria por Yahaya, A., Dangora, D.B., Alabi, O.J., Zongoma, A.M., Kumar, P. Lava

“…This study was conducted to understand the status and genetic diversity of MaYMV in maize fields in the northern guinea savannah region of Nigeria. A survey was conducted in 2017 and maize (n = 90) and itch grass (n = 10) plants suspected of virus infection based on appearance of mosaic and/or yellowing symptoms were sampled in Kaduna (n = 65) and Katsina (n = 35) states. …”
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Evaluating the utilisation of Climate-Smart Agriculture (CSA) technologies and practices among smallholder farmers in The Lawra, Jirapa and Nandom districts of Ghana por Sam, Kingsley Odum, Botchway, Vincent Ansah, Karbo, N, Essegbey, George Owusu, Nutsukpo, Delali Kofi, Zougmoré, Robert B.

“…Lawra, Jirapa and Nandom districts in the climate-risk areas of Guinea Savannah agro-ecological zone were chosen and Participatory Rapid Appraisal (PRA) tools were used. …”
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