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Mostrando ítems 11-20 de 29
Caracterización del MStV asociado a una enfermedad de maíz en Costa Rica
(1991-09)
Maize stripe virus (MStV) was identified as a causal agent of a corn disease in Costa Rica. Cytoplasmic inclusion bodies in needle, ring and eight-shapes were observed by light microscopy in infected leaf tissue. Different ...
Infección de la orquídea terrestre Phaius tankervillae (Orchidaceae) con el cymbidium mosaic potexvirus (CymMV) en Costa Rica
(1999)
En 1996, en un pequeño vívero comercial en la zona oeste del Valle Central de Costa Rica se observaron plantas de la orquídea terrestres Phaius tankervilliae que mostraban síntomas foliares de leves a severos de un estriado ...
Genetic diversity and geographic distribution of Bemisia tabaci and Trialeurodes vaporariorum in Costa Rica
(2019)
The tobacco whitefly Bemisia tabaci (Gennadius) cryptic species complex and of the greenhouse whitefly Trialeurodes vaporariorum (Westwood) are extensively reported as destructive pests in vegetable crops worldwide. A ...
Detección del viroide de la exocortis en plantaciones comerciales, utilizando la selección 861-S1 del cidro Etrog (Citrus medica L.)
Detection of CEVd in an orange grove using the Arizona 861-S1 selection of the ‘Etrog’ citron
(2004)
La prueba de infectividad empleada tradicionalmente para el viroide de la exocortis consiste en injertar yemas de los árboles por evaluar en clones sensibles, como el cidro Arizona 861-S1, el cual ha sido previamente ...
Diversity in somatic DNA repair efficiencies between commercial inbred maize lines and native Central American purple landraces
(2021)
Maize is a staple food all over the world. Models for climate change suggest that, in the future, cloud formation might be reduced in the tropics increasing the exposure to Ultraviolet-B (UV-B) radiation, a DNA-damaging ...
Diversity in mitotic DNA repair efficiencies between commercial inbred maize lines and native Central American purple landraces
(2022-10)
Background: Homologous recombination allows plants to repair double strand breaks in DNA, which if unrepaired
may lead to cell death. In this project, we determined the relative DNA repair efciency of the US inbred lines ...
Draft genomes of two phylotype I and II Ralstonia solanacearum species complex (RSSC) isolates causing bacterial wilt in tomato plants from Costa Rica
(2024)
Bacteria from RSSC hold agricultural significance as they are the causal agents of bacterial wilt. Here, we report the draft genomes of two bacteria extracted from vascular tissues of infected tomato plants. Isolate RALF-MA ...
Prevalencia del virus X en plantaciones comerciales de papa en la zona del Volcán Irazú, Cartago, Costa Rica
(1980)
The chloroplast-agglutination serologic technique as used to determine the prevalence of infection by Potato Virus X in six commercial plantations of this crop ( Solanum tuberosum L. ) in the potato growing area near the ...
Uso de indicadores para determinar la sostenibilidad de tres proyectos productivos de universidades en Costa Rica
Use of indicators to determine sustainability in three university production projects in Costa Rica
(2012-08)
Se implementó una matriz de indicadores para estimar y comparar el
nivel de sostenibilidad de tres proyectos productivos dedicados a la
producción láctea en instituciones de enseñanza superior, localizados en
las zonas ...
Citrus Huanglongbing Associated with ‘Candidatus Liberibacter asiaticus’ Present in the Northern Region of Costa Rica but Has Not Been Detected in Other Citrus- Growing Areas
(2015-12)
Since 2011, citrus Huanglongbing (HLB, ex-greening) disease has been detected in Los Chiles, Costa Rica, close to the Nicaraguan border, by the State Phytosanitary Service (Servicio Fitosanitario del Estado; SFE) and by ...