Listar Agronomía por título
Mostrando ítems 213-232 de 311
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Identificación del virus del mosaico del maíz, un rhabdovirus, en Costa Rica
(1994)Maize mosaic virus (MMV), a rhabdovirus, was identified associated to maize field plants, showing stunting and continuous chlorotic stripes uniformely distributed over the leaf blade.The virus was detected in field samples ... -
Identification and distribution of melon infecting viruses and their vectors in two provinces of Costa Rica
(1993)Papaya ringspot potyvirus (PRSV), watermelon mosaic 2 potyvirus (WMV-2), cucumber mosaic cucumovirus (CMV) and zucchini yellow mosaic potyvirus (ZYMV), singly or in mixed infections, were identified by ELISA in melon ... -
Improved high-efficiency protocol for somatic embryogenesis in Peach Palm (Bactris gasipaes Kunth) using RITA® temporary immersion system
(2014-11)Bactris gasipaes Kunth (Arecaceae) is an Amazonian palm cultivated mainly for the production of fruits and heart of palm. Biotechnological tools based on somatic embryogenesis (SE) can be used for improvement and germplasm ... -
In vitro propagation of bamboo species through axillary shoot proliferation: a review
(2017)Bamboos, very relevant plants in many countries around the world, are propagated at large scale with extreme difficulties. Use of seeds is challenging because of plant’s sporadic flowering and long flowering cycles, together ... -
In vitro propagation of purple pitahaya (Hylocereus costaricensis [F.A.C. Weber] Britton & Rose) cv. Cebra
(2012-10)Limitations to large-scale propagation of purple pitahaya (Hylocereus costaricensis [F.A.C. Weber] Britton & Rose), a potential source of betalains for the food industry, can be overcome through utilization of in vitro ... -
Incidence, Distribution, and Association of Spongospora subterranea and Potato mop-top virus in Costa Rica
(2008)A survey was conducted in 39 potato (Solanum tuberosum) fields in Costa Rica to determine incidence and association of Spongospora subterranean f. sp. subterranea and Potato mop-top pomovirus (PMTV). The fields were located ... -
Inducción de senescencia en palma aceitera Elaeis guineensis para renovación (Arecales: Arecaceae) mediante mezclas de herbicidas
(2016-06)La palma de aceite, Elaeis guineensis Jack, es uno de los cultivos de mayor desarrollo y expansión a nivel comercial, debido a su alta productividad oleaginosa y su bajo costo de mantenimiento. La expansión de palma ... -
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 ... -
Informe de vigilancia tecnológica sobre Xylella fastidiosa
(2016-07)Xylella fastidiosa (Xf) es una bacteria que se aloja en el xilema de las plantas afectando el flujo de agua y minerales en la savia bruta, conocida por su impacto negativo en ciertas especies comerciales de plantas causando ... -
Informe sobre vigilancia tecnológica sobre el control de plagas contra la piña mediante bioplaguicidas
(2018-06-25)El fruto de la piña es de importancia comercial para los países de la región de Centroamérica y República Dominicana, con un valor anual aproximado superior a los US$2.3 mil millones que representan más del 18% del mercado ... -
Inoculación al suelo con Pseudomonas fluorescens, Azospirillum oryzae, Bacillus subtilis y microorganismos de montaña (mm) y su efecto sobre un sistema de rotación soya-tomate bajo condiciones de invernadero
(2015)Se evaluó un sistema de rotación soyatomate, con incorporación de biomasa verde y aplicación de inóculos microbianos individuales y en mezcla sobre el crecimiento de las plantas y propiedades edáficas; para ello se evaluaron ... -
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 ... -
Kinetics of mass loss of arabica coffee during roasting process
(2016-03)Roasting is one of the most complex coffee processing steps due to simultaneous transfers of heat and mass. During this process, beans lose mass because of fast physical and chemical changes that will set color and flavor ...