Browsing Agronomía by Title
Now showing items 263-282 of 400
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Identificación de especies del género Colletotrichum asociadas a la antracnosis en papaya (Carica papaya L.) en Costa Rica
(2017-07)La antracnosis, causada por Colletotrichum spp., es una de las enfermedades pos-cosecha más importantes en papaya. En este estudio, frutas de papaya, híbrido Pococí, recolectados en plantaciones ubicadas en el cantón de ... -
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 ... -
Identificación y selección de híbridos somáticos obtenidos mediantefusión de protoplastos
(2009)El poder seleccionar eficientemente las plantas híbridas producidas a partir de fusión de protoplastos es fundamental. Se han logrado muchos avances en el tema en las últimas décadas. Entre los métodos utilizados para la ... -
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 culture and endogenous hormone levels in immature zygotic embryos, endosperm and callus cultures of normal and high-lysine barley genotypes
(2001)Endogenous hormone levels viz. indole-3-acetic acid (IAA), abscisic acid, gibberellins 1, 3 and 20 (GAs), zcatin/zeatin riboside and N6(Δ2-isopentenyl) adenine/ N6(Δ2-i sopentenyl) adenosine were determined in immature ... -
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 ... -
In vitro propagation of the neotropical giant bamboo, Guadua angustifolia Kunth, through axillary shoot proliferation
(2006)Guadua angustifolia Kunth was successfully propagated in vitro from axillary buds. Culture initiation, bud sprouting, shoot and plant multiplication, rooting and acclimatization, were evaluated. Best results were obtained ... -
Incidence and some ecological aspects of severe mosaic virus in two cropping systems in Costa Rica
(1982-03)La incidencia del virus del mosaico severo del frijol de costa (cowpea severe mosaic virus) es similar tanto en el cultivo individual de esta especie como en su asociación con maíz. En ambos sistemas de cultivo se registró ... -
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 ...