Resultados de búsqueda - Trees Identification.

Second External Program and Management Review of ICRAF, 1998 por CGIAR Technical Advisory Committee, CGIAR Secretariat

“…Quality of science and collaboration between biophysical and social scientists, with Panel identification of post harvest technologies and extension of policy research to all regions represented by ICRAF programs as areas requiring increased focus.…”
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Challenges and prospects for the conservation of crop genetic resources in field genebanks, in In Vitro collections and/or in liquid nitrogen por Panis, Bartholomeus, Nagel, Manuela, Houwe, Ines van den

“…In addition, the need for identification of unique accessions and elimination of duplicates is discussed. …”
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Agroforestry-Based Ecosystem Services: Reconciling Values of Humans and Nature in Sustainable Development por Noordwijk, M. van

“…These include: (1) The segregation of “forestry trees” and “agricultural crops”, ignoring the continuity in functional properties and functions; the farm-scale “Agroforestry-1” concept seeks to reconnect perennial and annual, woody and nonwoody plants across the forest–agriculture divide to markets for inputs and outputs. (2) The identification of agriculture with provisioning services and the assumed monopoly of forests on other ecosystem services (including hydrology, carbon storage, biodiversity conservation) in the landscape, challenged by the opportunity of “integrated” solutions at landscape scale as the “Agroforestry-2” concept explores. (3) The gaps among local knowledge of farmers/agroforesters as landscape managers, the contributions of social and ecological sciences, the path-dependency of forestry, environmental or agricultural institutions, and emerging policy responses to “issue attention cycles” in the public debate, as is the focus of the “Agroforestry-3” concept. …”
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Opportunities and challenges for community forestry: lessons from tropical America por Jong, W. de, Cornejo, C., Pacheco, P., Pokorny, B., Stoian, D., Sabogal, C., Louman, Bastian

“…The first half focuses on the actual contribution of forests and trees to rural livelihoods, evidence that allows a more precise identification of the actual potential of communal forestry for rural development. …”
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Cultivation potential of different mango varieties in Kenya, considering likely impacts of climate change por Ngulu, James, Kindt, Roeland, Luedeling, Eike, Kehlenbeck, Katja

“…Agroforestry can potentially help smallholder farmers adapt to climate change. Trees, including fruit trees, are less prone to water stress than annual crops, and they provide valuable products for subsistence and income generation. …”
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Traditional food plants of the upper Aswa River catchment of northern Uganda—a cultural crossroads por Masters, E.T.

“…RI scores ranged from 0.93 to 0.11, with fruit trees occupying the top 25 taxa (RI 0.45 and above). …”
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Behavioural response of the woodwasp Sirex noctilio to volatile emissions of its fungal symbiont por Fernandez Ajo, Alejandro Apolo, Martinez Von Ellrich, Andres, Villacide, Jose Maria, Corley, Juan Carlos

“…Further work is needed, mainly oriented towards the identification of the volatiles that trigger the observed attraction response and their possible synergistic effects with tree volatiles.…”
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Molecular diversity of Scutellonema bradys populations from Benin, based on ITS1 rDNA and COI mtDNA por Afoha, S.A.P.E., Affokpon, A., Waeyenberge, L., Sutter, N. de, Agbangla, C., Dansi, A., Coyne, Danny L., Viaene, N.

“…An earlier published species-specific primer set was verified with the DNA of the 51 sequences and was considered a reliable and rapid method for S. bradys identification.…”
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Insekter i hårt törskateangripna ungtallbestånd i Norrbotten : skadeinventering och artbestämning por Engström, Andreas

Management of Nothofagus genetic resources: Definition of genetic zones based on a combination of nuclear and chloroplast marker data por Azpilicueta, Maria Marta, Gallo, Leonardo Ariel, van Zonneveld, Maarten, Thomas, E., Moreno, Angela Carolina, Marchelli, Paula

“…Development of appropriate forest conservation and management measures for a given tree species includes the identification of distinct genetically homogeneous units across its overall distribution range, which depends on the availability of knowledge on genetic, morphological and adaptive variation. …”
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Multiple scale habitat selection of the Siberian jay Perisoreus infaustus in a sub arctic managed forest landscape por Heap, Christopher

“…Habitat selection studies are important in increasing our understanding of population patterns and processes in fragmented and spatially heterogeneous landscapes. Identification and characterisation of a species' habitat requirements are essential in guiding land-use management practices aimed at the protection of critical habitats. …”
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Att inventera urbana träd : syfte, parametrar, metod och löpande arbete por Lund, Anna

Management of Parkia biglobosa in the field of farmers in selected sites in Burkina Faso por Zerbo, G.B., Millogo, D., Vinceti, B., Ouédraogo, M., Duminil, J., Lompo, D.J.-P.

“…Parkia biglobosa is ranked as one of the most important agroforestry multipurpose tree species in Sahelo-Sudanian zone. The National Tree Seed Center (CNSF) of Burkina Faso has been involved in a breeding programme of this species for many years and has already conducted several research activities (eg. germplasm collection, provenance trials establishment, selection of the best promising trees for propagation). …”
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Improved recovery of Erwinia amylovora-stressed cells from pome fruit on RESC, a simple, rapid and differential medium por Ordax, Mónica, Biosca, Elena G., López, María M., Marco-Noales, Ester

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Crop recognition at orchard level in Mediterranean conditions using time series of Sentinel-2 spectral indices por Moltó, Enrique, Izquierdo-Sanz, Héctor

“…This work describes preliminary work for constructing and validating a classification model for automatic identification of crops in an agricultural zone where different species of fruit trees are cultivated. …”
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Desarrollo de criterios para el manejo del copaibo (Copaifera langsdorffii) en el sector Chiquitano Norte - Transición Amazonía, ecorregión del bosque seco Chiquitano, Bolivia por Atías Vásquez, Gladis S.

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Field validation of intraspecific variation in phosphorus use efficiency and nitrogen fixation by provenances of Gliricidia sepium grown in low P soils por Sanginga, N., Danso, S., Zapata, F., Bowen, G.

“…Identification of tree species or cultivars/provenances that are tolerant to low levels of available soil P will decrease the dependence on P fertilizer for the good establishment and growth of N2-fixing trees. …”
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Integrated Molecular and Morphological Studies of the Daucus guttatus Complex (Apiaceae) por Arbizu Berrocal, Carlos Irvin, Simon, Philipp W., Martínez Flores, Fernando, Ruess, Holly, Crespo, Manuel B., Spooner, David M.

“…A near parallel set of accessions, planted in a common garden, was used for morphological analyses. The molecular trees are highly resolved for most of the clades, grouping accessions of the D. guttatus complex into four clades. …”
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Conventional and Real-Time PCRs for Detection of Erwinia piriflorinigrans Allow Its Distinction from the Fire Blight Pathogen, Erwinia amylovora por Barbé, Silvia, Bertolini, Edson, Roselló, Montserrat, Llop, Pablo, López, María M.

“…Accurate detection and identification of E. piriflorinigrans are challenging because its symptoms on pear blossoms are similar to those caused by Erwinia amylovora, the causal agent of fire blight. …”
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Abundance of pests and diseases in Arabica coffee production systems in Uganda - ecological mechanisms and spatial analysis in the face of climate change. por Liebig, Theresa Ines

“…The comparison of different shading systems (e.g. shade-grown vs. sun-grown coffee) and the identification of tradeoffs for ecosystem services is still a matter of ongoing debates. …”
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