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Unidad 1: Mejoramiento genético. Unidad 2: Selección y manejo de fuentes semilleras. Unidad 3: Recolección y manejo de semillas forestales
(CATIE, Turrialba (Costa Rica). Proyecto Semillas Forestales, 1996) -
Unidad de Manejo Río Chanchich, Guatemala: una experiencia exitosa de comercialización de madera por parte de un grupo comunitario
(CATIE, Turrialba (Costa Rica), 2000) -
Unidades fitogeográficas para la clasificación de ecosistemas terrestres en Costa Rica
(CATIE, Turrialba (Costa Rica)CATIE, Turrialba (Costa Rica), 2008-08)Se ofrece un nuevo sistema de clasificación de los sistemas ecológicos terrestres para Costa Rica. Se proponen 33 unidades fitogeográficas con su respectiva descripción. Las unidades fitogeográficas se definen por patrones ... -
Uniendo esfuerzos para el desarrollo: memoria de la reunión final y de entrega de informes del proyecto CATIE-BIB 22 de diciembre de 1983
(CATIE, Turrialba (Costa Rica), 1984) -
Unintended Effects of Targeting an Environmental Rebate
(Springer, Berlín (Alemania), 2015)When designing schemes such as conditional cash transfers or payments for ecosystem services, the choice of whom to select and whom to exclude is critical.We incentivize and measure actual contributions to an environmental ... -
Unraveling Ecophysiological Mechanisms in Potatoes under Different Irrigation Methods: A Preliminary Field Evaluation
(2020)Potatoes—a global food security and staple crop—is threatened by dry spells in drought-prone areas. The use of physiological thresholds to save water while maintaining a reasonable tuber yield has been proposed, but their ... -
Unraveling the Complexity of Coffee Leaf Rust Behavior and Development in Different Coffea arabica Agroecosystems
(2020)Crop health management systems can be designed according to practices that help to reduce crop losses by restricting pathogen development and promoting host plant growth. A good understanding of pathogen and host dynamics, ... -
UNU proposal: traditional agroforestry practices in the wet tropics; the La Suiza, Costa Rica case study
(CATIE, Turrialba (Costa Rica), 1979) -
Unveiling a unique genetic diversity of cultivated Coffea arabica L. in its main domestication center: Yemen
(2021)Whilst it is established that almost all cultivated coffee (Coffea arabica L.) varieties originated in Yemen after some coffee seeds were introduced into Yemen from neighboring Ethiopia, the actual coffee genetic diversity ... -
Upland development and conservation planning in Honduras: a case of integrating rural development with hydro-electric-power projects for sustainability
(CATIE, Turrialba (Costa Rica). Programa Manejo Integrado de Recursos Naturales. Area de Manejo de Cuencas, 1993) -
Use of bacteriophages of bacteroides as indicators of the source of origin of fecal contamination in the Bogotá river basin, Colombia
(CATIE, Turrialba (Costa Rica), 2010)GA 17 indicator of both human and animal contamination from and HB 13, a strain found only in human origin samples. The concentration for each strain was evaluated and compared with fecal bacterial indicators, (e.g.) fecal ... -
Use of beans as a trap crop and agricultural oil to decrease the incidence of virus transmitted by Bemisia (Gennadius) in tomatoes
(CATIE, Turrialba (Costa Rica), 1992)El presente trabajo se realizó para determinar el efecto del uso de policultivo tomate-vainica y de un aceite agrícola sobre B. tabaci, y además, para conocer algunos aspectos básicos de ecología de este insecto en el ... -
Use of bioassays for herbicide persistence studies in the humid tropics
(IICA, San José (Costa Rica), 1990-04)Este artículo examina brevemente la importancia de técnicas de bio-ensayos en el Manejo de la Resistencia de los Herbicidas y del nivel de residuos del suelo, factores que forman la selección de organismos-pruebas, el ... -
Use of endophytic bacteria for the biological control of the Panamá disease (Fusarium oxysporum f.sp. cubense) in the cultivar Gros Michel (AAA)
(CATIE, Turrialba (Costa Rica), 2009)El objetivo de la presente investigación fue seleccionar bacterias endofíticas para el biocontrol de Fusarium oxysporum f. sp. cubense (FOC). Nueve aislamientos de FOC recolectados en sectores ubicados en Turrialba y ... -
Use of row cover in cantaloupe (Cucumis melo L.) to delay infection of aphid-transmitted viruses in Honduras
(IICA, San José (Costa Rica), 1994-07)The yield response of cantaloupes grown unde Reemay row cover until female flower appearance was evaluated at La Granja, El Palenque, Los Patos and Monjaras, Departament of Choloteca, Honduras, during the second planting ... -
Used technologies in current production and conservation systems in Jucuapa River sub watershed, Matagalpa, Nicaragua
(CATIE, Turrialba (Costa Rica), 2005)also to determine adoption levels of technologies that either adjust or not to watershed management, and to identify and analyze conditioning factors for their adoption. Se realizó un estudio en la Subcuenca del Río Jucuapa ... -
Using expert judgments to inform economic evaluation of ecosystem-based adaptation decisions: watershed management for enhancing water supply for Tegucigalpa, Honduras
(2017-05)Acute concerns over the status of ecosystems providing benefits to human communities, and deep uncertainties over the consequences of future climate change, call for new policy choices, as well as improved methods for ... -
Using medium and large-sized mammals as indicator species to measure connectivity and large infrastructure impacts in Costa Rica
(Centro Agronómico Tropical de Investigación y Enseñanza (CATIE), 2019)This research intended to use medium and large-sized mammals to evaluate the condition of a critical link of the Mesoamerican Biological Corridor (MBC) in Costa Rica. Also, we intended to measure the impacts of a hydroelectric ...