Ciencias agroalimentarias
Envíos recientes
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Guazuma ulmifolia (Sterculiaceae), a new natural host of 16SrXV phytoplasma in Costa Rica
(2011-04)Guacimo trees (Guazuma ulmifolia, Sterculiaceae) showing witches’ broom symptoms (GWB), small leaves, short internodes, stunting and no flower and fruit production were observed on side roads and fences in different areas ... -
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 ... -
Detection of Plantago asiatica mosaic virus in lily hybrid plants(Lilium spp.) in Costa Rica grown from imported bulbs
(2017-12)Plantago asiatica mosaic virus (PlAMV) was detected in Costa Rica infecting lily plants showing foliar chlorotic and necrotic streaking. Virus identity was established by TEM, sequencing and ELISA. Pathogenicity was confirmed ... -
Population Genomic Analysis of a Bacterial Plant Pathogen: Novel Insight into the Origin of Pierce’s Disease of Grapevine in the U.S.
(2010-11)Invasive diseases present an increasing problem worldwide; however, genomic techniques are now available to investigate the timing and geographical origin of such introductions. We employed genomic techniques to demonstrate ... -
Chayote mosaic, a new disease in Sechium edule caused by a tymovirus
(1997-04)A sap-transmissible virus was isolated from chayote (Sechium edule) in Costa Rica. Infected plants showed chlorotic spots and rings, and blotchy mosaics, which often coalesced to give a complete mosaic and leaf deformation. ... -
‘Candidatus Phytoplasma costaricanum’ a novel phytoplasma associated with an emerging disease in soybean (Glycine max).
(2011-12)A novel phytoplasma, designated strain SoyST1c1, associated with a newly emerging disease in soybean (Glycine max), known as soybean stunt (SoyST), was found in 2002 in a soybean plantation in Alajuela Province, Costa Rica. ... -
Adaptación de una técnica de inmunosorbencia (ELISA) a la detección del virus del rayado fino del maíz en su insecto vector
(1983-06)An enzyme-linked immunosorbent assay (ELISA) was adapted for detection of maize rayado fino virus (RFV) in its insect vector Dalbulus maidis. Optimization of experimental conditions for the assay included the use of ... -
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 ... -
Histological observations on maize leaf tissues infected with rayado fino virus
(1977-03)Observaciones realizadas al microscopio electrónico mostraron que las células del parénquima de hojas de maíz infectadas con el virus del rayado fino (VRF) aparecían ligeramente contraídas en relación a las de hojas sanas. ... -
Papaya ringspot virus and Cucumber mosaic virus associated with a severe mosaic in melon
(1991-09)Severe mosaic disease was observed in several melon fields in Costa Rica during the period 1987-1991. Two viruses, papaya ringspot virus (PRSV) and cucumber mosaic virus (CMV) were associated in single and mixed infections ... -
Producción de chile dulce (Capsicum annuum) en invernadero: efecto de densidad de siembra y poda
(2018)Se evaluó el efecto de dos tipos de poda (Española y Holandesa) y tres densidades de siembra (2,60; 3,25; y 3,90 plantas/m2) sobre el rendimiento y la calidad del chile dulce cv. FBM-9 cultivado bajo invernadero en Costa ... -
Isolation and molecular characterization of Xylella fastidiosa from coffee plants in Costa Rica.
(2008-10)Coffee plants exhibiting a range of symptoms including mild to severe curling of leaf margins, chlorosis and deformation of leaves, stunting of plants, shortening of internodes, and dieback of branches have been reported ... -
Los conocimientos tradicionales y el combate de plagas en América Central; revisión de los archivos del ICECU
(1993-06)Se revisó el archivo de preguntas y respuestas del Instituto Centroamericano de Extensión de la Cultura (ICECU), desde 1964 y se seleccionó en las áreas de Agricultura y de Animales los casos que sugieren soluciones libres ... -
Studies on the etiology of the crown disease / spear rot syndrome in oil palm
(1993)The crown disease/common spear rot (CD/CSR) syndrome is the most common disorder in young oil palm plantations worldwide. Diseased and healthy plants were compared in their nutrient content, water status and type of soil ... -
Occurrence of Potato Powdery Scab Caused by Spongospora subterranea f. sp. subterranea in Costa Rica
(2002-11)Powdery scab of potatoes, caused by Spongospora subterranea (Wallr.) Lagerheim f. sp. subterranea Tomlinson, is important worldwide due to its effect on tuber quality and transmission of Potato mop-top virus. Although ... -
Los virus del frijol en Centroamérica. IV. Algunas propiedades y transmisión por insectos crisomélidos del virus del moteado amarillo del frijol.
(1976-04)Bean yellow stipple virus (BYSV) was isolate from beans (Phaseolus vulgaris) in Turrialba, Costa Rica. Infected plants showed a distinctive yellow stippling and slight malformation leaves BYSV infected 14 of 24 mechanically ... -
Características taxonómicas de pastos Brachiaria utilizados en Costa Rica
(2015-06)Se evaluó las características taxonómicas de 13 cultivares de pasto del género Brachiaria de uso común en Costa Rica; tres cultivares de B. decumbens (Basilisk CIAT 606, Peludo y Basilisk) y diez de B. brizantha (Piatá, ... -
Forage Brassicas Stockpiled for Fall Grazing: Yield and Nutritive Value
(2016-01)Forage brassicas can potentially be used to extend the grazing season into the fall for beef cattle operations, thereby reducing input costs. Nine cultivars of forage brassicas were seeded on two planting dates, and their ... -
Ensilaje
(2018-11-01)Preservación de forrajes verdes por medio de una fermentación ácida que previene su descomposición. La técnica de ensilaje se utiliza para guardar alimento para el ganado y utilizarlo en el momento que se requiera. Dependiendo ...
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