Browsing Artículos Científicos by Title
Now showing items 38-56 of 56
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Micromorfología de los foliolos de pejibaye Bactris gasipaes (Arecaceae) var. Diamantes-10
(Universidad de Costa Rica, 2016-07-01)Bactris gasipaes is widely cultivated for the consumption of palm hearts and fruits. The present work describes the micro morphological characteristics of leaflets from adult plants of B. gasipaes, thornless ... -
Molecular characterization and distribution of the needle nematode Longidorus laevicapitatus Williams, 1959 (Nematoda: Longidoridae) in Costa Rica
(Springer, 2016-06-25)Correct identification of Longidorus species in Costa Rica is essential to establish appropriate control strategies for preventing the spread of these nematodes. Nematode surveys conducted in the rainy seasons from 2013 ... -
Molecular characterization of pseudomonodelphic dagger nematodes of the genus Xiphinema Cobb, 1913 (Nematoda: Longidoridae) in Costa Rica, with notes on Xiphinema setariae Tarjan, 1964
(Springer, 2016-12-16)Pseudomonodelphic dagger nematodes of the genus Xiphinema are characterized by having one of the genital branches reduced and lacking an ovary. They are usually reported from tropical regions. Nematode surveys conducted ... -
Mormodes salazarii (Orchidaceae, Catasetinae), a new species with greenish-white flowers from Costa Rica
(Phytotaxa, 2016-01-25)Mormodes salazarii (Orchidaceae, Catasetinae), a new species apparently endemic to Costa Rica, is described and illustrated. It is similar to M. fractiflexa because of its non-resupinate flowers, entire lip and revolute ... -
Nematode fauna of Costa Rican protected areas
(Universidad Nacional, Costa Rica., 2003-12-01)The Instituto Nacional de Biodiversidad (INBio), in collaboration with the Nematology Laborato ry at Universidad Nacional (U.N.A) of Costa Rica, conducted a nematode inventory of Costa Rican wild lands. Hundreds of samples ... -
Nematodos como indicadores ambientales
(2013-08-22)Los nematodos juegan un papel importante en una serie de procesos ecológicos que son clave para el funcionamiento de los ecosistemas. Una aplicación muy particular, que ha tomado auge en los últimos años, es el uso de la ... -
Partial or total replacement of commercial concentrate with on-farm-grown mulberry forage: effects on lamb growth and feeding costs
(Springer Nature, 2017-01-23)Replacing commercial concentrate with mulberry foliage was evaluated in a feeding trial lasting 126 days. Forty-eight weaned male Pelibuey lambs (20.6 ± 0.80 kg of BW) were randomly allocated to four groups: (1) supplementing ... -
Pequeños productores de maíz en el Caribe colombiano: estudio de sus atributos y prácticas agrícolas
(Agrosavia, 2017-12-27)La agricultura familiar es la responsable de la mayor parte de la producción de los alimentos en América Latina. Sin embargo, es evidente que las innovaciones tecnológicas desarrolladas para mejorar la ... -
Polycyclic aromatic hydrocarbons in filterable PM2.5 emissions generated from regulated stationary sources in the metropolitan area of Costa Rica
(Elsevier, 2017-09)This study analyzed the profiles of polycyclic aromatic hydrocarbons (PAHs) in filterable PM2.5 particles collected from a total of 71 boilers and 22 indirect type furnaces that burn liquid and biomass fuels in the ... -
Polycyclic aromatic hydrocarbons in PM2.5 and PM10 atmospheric particles in the Metropolitan Area of Costa Rica: Sources, temporal and spatial variations
(Elsevier, 2017-03)Polycyclic aromatic hydrocarbons (PAHs) concentrations in PM10 and PM2.5 particles were measured at 14 monitoring sites (12 for PM10 and 2 for PM2.5), located in the Metropolitan Area of Costa Rica, from January to November ... -
Programa de compras institucionales en Costa Rica: Política productiva cuestionada pero socialmente necesaria
(Universidad Nacional, Costa Rica, 2020-12-30)El PAI es un programa orientado a crear un mercado para pequeños productores agrícolas a través de las compras de instituciones estatales que asimismo se inscribe en las políticas públicas, para el fortalecimiento ... -
Quality differentiation of cocoa beans: implications for geographical indications
(Journal of the Science of Food and Agriculture, 2021-01-09)Geographical indications may stimulate collective actions of governance for quality control, trade and marketing as well as innovation based on the use of local resources and regional biodiversity. Cocoa production, however, ... -
El relevo de género en la elaboración alfarera. El caso de las comunidades Guaitil y San Vicente, provincia de Guanacaste, Costa Rica
(Universidad Nacional, Costa Rica., 2012-01-18)El artículo presenta un breve recorrido por la historia reciente de las comunidades alfareras costarricenses de Guaitil y San Vicente, en la región Chorotega. Profundiza en el cambio intergeneracional y el relevo de género ... -
Reverse Taxonomy for Elucidating Diversity of Insect-Associated Nematodes: A Case Study with Termites
(Public Library of Science, 2012-08-28)Background: The molecular operational taxonomic unit (MOTU) has recently been applied to microbial and microscopic animal biodiversity surveys. However, in many cases, some of the MOTUs cannot be definitively tied to any ... -
Root-lesion nematodes of the genus Pratylenchus (Nematoda: Pratylenchidae) from Costa Rica with molecular identification of P. gutierrezi and P. panamaensis topotypes
(Springer, 2016-02-17)Root-lesion nematodes of the genus Pratylenchus are among the most damaging nematodes for crop and ornamental plants worldwide. There are about 75 described species in this genus with a wide host range, but a difficult ... -
Situación socioeconómica y productiva de sistemas caprinos en la Región Huetar Norte, Costa Rica
(Universidad Nacional, Costa Rica, 2020-07-30)El estudio se realizó de febrero a junio del 2016, en la región Huetar Norte de Costa Rica. El objetivo fue mostrar resultados generales de la situación productiva y socioeconómica de los sistemas de producción caprina de ... -
Turmoil at Turrialba Volcano (Costa Rica): Degassing and eruptive processes inferred from high-frequency gas monitoring
(Wiley, 2016-08-28)Eruptive activity at Turrialba Volcano (Costa Rica) has escalated significantly since 2014, causing airport and school closures in the capital city of San José. Whether or not new magma is involved in the current unrest ... -
Two new species and three morphospecies of Ficophagus Davies & Bartholomaeus, 2015 (Nematoda: Aphelenchoididae) from Ficus subgenus Pharmacosycea (Moraceae) in Central America
(Brill & The Hague Academy of International Law, 2017-03-15)Aphelenchoidid nematodes were collected from the sycones of Ficus subgenus Pharmacosycea from Central America. Two new species of Ficophagus were recovered, and are described herein as F. maxima sp. n. and F. yoponensis ... -
Uso de Beauveria bassiana en el control de tecla [Strymon megarus (Lepidoptera: Lycaenidae)] en piña (Ananas comosus (L.) Merr.)
(Universidad de Costa Rica, 2022)El incremento en la producción de piña (Ananas comosus (L.) Merr.) exige al mercado frutas de buena calidad, con menor impacto ambiental y mínimo uso de productos químicos. Objetivo. Determinar la dosis efectiva del hongo ...