Resultados de búsqueda - "conservative"

Methods for non-timber forest products research: the Tropenbos experience por Ros-Tonen, M.A.F., Andel, T. van, Assies, W., Dijk, J.F.W. van, Duivenvoorden, J.F., Hammen, M.C. van der, Jong, W. de, Reinders, M., Fernández, C.A., Valkenburg, J.L.C.H. van

“…In this way it is strived to make clear under what conditions commercial NTFP extraction can serve as a strategy for conservation and wise forest use…”
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Communicating complexity: Integrated assessment of trade-offs concerning soil fertility management within African farming systems to support innovation and development por Giller, Kenneth E., Tittonell, Pablo A., Rufino, Mariana C., Wijk, Mark T. van, Zingore, Shamie, Mapfumo, Paul, Adjei-Nsiah, Samuel, Herrero, Mario, Chikowo, Regis, Corbeels, Marc, Rowe, E., Baijukya, Frederick P., Mwijage, A., Smith, Jimmy W., Yeboah, E., Burg, J. van de, Sanogo, M., Misiko, Michael T., Ridder, N.A. de, Karanja, S., Kaizzi, C., Kungu, J., Mwale, M., Nwaga, D., Pacini, C., Vanlauwe, Bernard

“…We identified trade-offs between income generation, soil conservation and community agreements through optimising concurrent objectives at farm and village levels. …”
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Transhumance cattle production system in North Gondar, Amhara region, Ethiopia: is it sustainable? por Tegegne, Azage, Mengistie, T., Desalew, T., Teka, W., Dejen, Eshete

“…The conflict over resources will intensify, probably leading to the demise of this production system unless alterative development strategies, such as intensification of the production system in the highlands and development of feed conservation and marketing in the lowlands are devised.…”
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Minimum tillage and vegetative barrier effects on crop yields in relation to soil water content in the Central Kenya highlands por Guto, Samuel, Ridder, N.A. de, Giller, Kenneth E., Pypers, Pieter, Vanlauwe, Bernard

“…A study was initiated to investigate the effects of minimum tillage and vegetative barriers on soil and water conservation and crop yield. There were two tillage practices; minimum and regular tillage and two vegetative barriers; leucaena consisting of leguminous trees (Leucaena trichandra), and Napier consisting of Napier grass (Pennisetum purpureum) in addition to a control without barriers. …”
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Indigenous cattle genetic resources, their husbandry practices and breeding objectives in North-western Ethiopia por Wuletaw, Z.

“…However, in Ethiopia, little attention has been given to identify, characterize and conserve the diversity of the various livestock breed types. …”
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Sistemas de polinización en granadilla (Passiflora ligularis Juss.) como base para estudios genéticos y de conservación por Arias Suárez, Juan Carlos, Ocampo, John, Urrea Gómez, Ramiro

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Genetic parameters for reproduction traits and correlation with pre weaning growth traits of Fogera cattle at Metekel ranch, north west Ethiopia por Bekele, A., Wuletaw, Z., Haile, Aynalem, Gizaw, Solomon, Mekuriaw, Getinet

“…Metekel cattle Breeding and Improvement Ranch has so far been engaged in maintenance of Fogera cattle population outside their adapted environment (ex-situ conservation). The breeding program has two components: selection and crossbreeding. …”
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Eastern Africa Root Crops Research Network (EARRNET) legacy; performance report: 20042007 por Ntawuruhunga, Pheneas, Okidi, J.

“…With the spread of CBSD into high altitude environments, contrary to what was known to be the ecology of the disease (low land along the coast of East and Southern Africa), more efforts were initiated by screening for CBSD the improved CMD resistant IITA/EARRNET midaltitude germplasm that were in in situ conservation. Additional seeds with a background from Amani (a research station in Kenya) materials were introduced for evaluation under high disease pressure areas in Mukono district in Uganda. …”
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Permanencia en vivero del acodo aéreo de Myrciaria dubia “camu camu” y su efecto en la supervivencia en campo definitivo por Gálvez, Jorge, Imán Correa, Sixto Alfredo, Pinedo Freyre, Sergio Fernando, Fernández Sandoval, Andrés, Pérez, Juan Miguel

“…Vegetative propagation genotype keeps intact and ensures the conservation of valuable germplasm. The aim of this study was to evaluate the residence time of air layering nursery camu camu, for higher survival rates in final field. …”
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Drivers of seedling establishment success in dryland restoration efforts. por Shackelford, Nancy, Paterno, Gustavo B., Winkler, Daniel E., Erickson, Todd E., Leger, Elizabeth A., Svejcar, Lauren N., Breed , Martin F., Faist, Akasha M., Harrison, Peter A., Curran, Michael F., Peri, Pablo Luis, Suding, Katharine L.

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Transferencia y exportación de recursos en una cuenca serrana de patagonia extra andina por Ciari, Georgina

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Diseño de tres pares de oligonucleótidos específicos para la detección del virus de la mancha anular de la papaya (PRSV) por Cruz Vázquez, Julieta Karina, Ochoa Somuano, Jorge, Ortega Baranda, Verónica, Ruiz Ruiz, Francisco Gumaro

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Logging by selective extraction of best trees: Does it change patterns of genetic diversity? : The case of Nothofagus pumilio por Soliani, Carolina, Gallo, Leonardo Ariel, Marchelli, Paula, Vendramin, Giovanni Giuseppe

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Estudio exploratorio de las características de los cededores de tierra pequeños y medianos en los partidos de Junín y Pergamino por Deninotti, J., Elustondo, Luciana, Fillat, Francisco Antonio, Calcaterra, Carlos Pablo

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Evaluación y cartografía de la erosión hídrica en la Argentina por Casas, Roberto Raul, Godagnone, Rubén Edgardo, De La Fuente, Juan Carlos

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Caracterización morfológica de dos nuevas variedades de caña de azúcar: INTA NA 03-663 e INTA NA 03-617 = Morphological characterization of two new sugarcane varieties: INTA NA 03-... por Garcia, José María, Merino, María Florencia, Felipe, Arturo

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Dieta de cabras en pastoreo extensivo a fines del invierno en la región del Monte, Chilecito (La Rioja, Argentina) por Brizuela, Elena Raquel, Varas, Mariana Marcela, Chagra Dib, Elsa Patricia, Martinez, Marcela Lorena, Lucca, Cesar Javier, Martinez, Patricia

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Reconversión agroecológica en una finca. Patagonia Argentina por Dussi, María Claudia, Flores, Liliana Beatriz, Gómez, Eugenia, Dussi, Silvia Esther, Barrionuevo, Myriam Elisabeth, Zon, Karina Daniela

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Servicios de los ecosistemas en áreas urbanas y periurbanas: su reconocimiento por distintos actores sociales. por Rositano, Florencia, Civeira, Gabriela

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Sistemas silvopastoriles en bosques de Nothofagus antárctica: Revisión del conocimiento actual en Patagonia Sur, Argentina. por Peri, Pablo Luis

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