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Browsing Agronomía Colombiana by Issue Date
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Accumulation of N, P, and K in the tubers of potato (iSolanum tuberosum/i L. ssp. iandigena/i) under contrasting soils of the Andean region of Colombia
The relationship between tuber growth and demand for NPK in andigena group of potato (Solanum tuberosum L. ssp. andigena) is poorly documented under conditions of the Andean region of Colombia. It is necessary to establish ...Universidad Nacional de Colombia Revistas electrónicas UN Agronomía Colombiana. -
Evaluation of ‘Arrayana’ tangerine (iCitrus reticulata/i Blanco) grafted onto different rootstocks in tropical lowlands of Colombian Orinoquia, 2005-2011 (second cycle)
‘Arrayana’ tangerine (Citrus reticulta Blanco) is the most cultivated variety in Meta piedmont; it is mainly grafted onto the ‘Cleopatra’ tangerine rootstock (Citrus reshni hort. ex Tanaka). Plants grafted onto this rootstock ...Universidad Nacional de Colombia Revistas electrónicas UN Agronomía Colombiana. -
Virus diagnosis in tree tomato (iSolanum betaceum/i Cav.) by RT-PCR and transmission electron microscopy in Pichincha and Tungurahua Provinces of Ecuador
Tree tomato (Solanum betaceum Cav.) is an economically important fruit crop in Ecuador. The symptoms of higher virus-related incidence in plantations located in Pichincha and Tungurahua correspond to yellowing, mosaic, ...Universidad Nacional de Colombia Revistas electrónicas UN Agronomía Colombiana. -
Organogenesis in-vitro using three tissues types of tree tomato (iCyphomandra betacea/i (Cav.)) (Sendtn.)
Tree tomato is a fruit with great economic potential due to its high nutritional value. The induction of direct organogenesis in this species is a great alternative for clonal propagation of disease-free plants, and also ...Universidad Nacional de Colombia Revistas electrónicas UN Agronomía Colombiana. -
Effect of iEucalyptus globullus/i biochar addition on the availability of phosphorus in acidic soil
Phosphorus (P) is one of the primary nutrients limiting crop production. The application of phosphate fertilizers in acidic soils leads to the formation of secondary insoluble compounds that reduces the effectiveness of ...Universidad Nacional de Colombia Revistas electrónicas UN Agronomía Colombiana. -
Genome sequencing of two iBell pepper endornavirus/i (BPEV) variants infecting iCapsicum annuum/i in Colombia
Transcriptome analysis of chili and bell pepper samples from commercial plots in the municipalities of Santa Fe de Antioquia and El Penol in the province of Antioquia revealed the presence of viral sequences with significant ...Universidad Nacional de Colombia Revistas electrónicas UN Agronomía Colombiana. -
Evaluation of a NIR camera for monitoring yield and nitrogen effect in sugarcane
The main objective of the research carried out in the sugar productive sector in Colombia is to improve crop productivity of sugarcane. The rise of RPAS, together with the use of multispectral cameras, which allows for ...Universidad Nacional de Colombia Revistas electrónicas UN Agronomía Colombiana. -
Evaluation of six leaf angle distribution functions in the Castillo® coffee variety
The study was conducted at the “Estacion Central Naranjal Cenicafe” (National Coffee Research Center, Chinchina, Caldas, Colombia) on Coffea arabica L. variety Castillo® to find the leaf angle distribution function that ...Universidad Nacional de Colombia Revistas electrónicas UN Agronomía Colombiana. -
High dilution preparations for organic production system of broccoli
The aim of this study was to evaluate the influence of high dilution preparations on seedlings growth and production of broccoli under organic system. Three experiments were conducted in a greenhouse with completely ...Universidad Nacional de Colombia Revistas electrónicas UN Agronomía Colombiana. -
Banana leaf as packaging of lulo for different storage temperatures and the effects on postharvest characteristics
In Colombia, the small and medium farmers are responsible for the production of nearly 45.000 t yr-1 of lulo (Solanum quitoense). However adequate and easy techniques for postharvest handling are not often available to be ...Universidad Nacional de Colombia Revistas electrónicas UN Agronomía Colombiana. -
Impacts of the dry season on the gas exchange of oil palm (iElaeis guineensis/i) and interspecific hybrid (iElaeis oleifera/i x iElaeis guineensis/i) progenies under field conditions in eastern Colombia
Elaeis guineensis palms and its interspecific hybrid (E. oleifera × E. guineensis) were planted in 2004 in the Cuernavaca farm of Unipalma S.A., located in the municipality of Paratebueno Cundinamarca, Colombia). The palms ...Universidad Nacional de Colombia Revistas electrónicas UN Agronomía Colombiana. -
Effect of fertilization level on water use and production of corn (iZea mays/i L.) in a cereal producing area in Colombia - a modeling exercise using AquaCrop-FAO
The effect of the amount of fertilization applied to the corn variety ‘ICA V-156’ (white grain) was calibrated and validated with the simulator AquaCrop in Cerete (Cordoba, Colombia) at an altitude of 20 m. The fertilization ...Universidad Nacional de Colombia Revistas electrónicas UN Agronomía Colombiana. -
Thermal and physicochemical properties of starches from three Colombian rice varieties
Samples of starch from broken grains of three rice varieties grown in Colombia were analyzed to determine their physicochemical and thermal properties: Fedearroz 473 (F473), Fedearroz 50 (F50) and Fedearroz 60 (F60). The ...Universidad Nacional de Colombia Revistas electrónicas UN Agronomía Colombiana. -
Presence of mycorrhizal fungi and a fluorescent iPseudomonas /i sp. in the rhizosphere of cacao in two agroecosystems and their effects on cacao seedling growth
In recent years the cultivation of cacao (Theobroma cacao L.) in Colombia has been growing up, resulting in the need to develop a sustainable production system. In this regard, beneficial soil microorganisms are an alternative ...Universidad Nacional de Colombia Revistas electrónicas UN Agronomía Colombiana. -
Effects of land use on soil COsub2/sub flux in the Paramo de Guerrero, Colombia
The Andean paramo is an important global carbon sink and has a fundamental ecological function of capture, regulation and supply of water resources. The soil CO2 efflux is a natural process through which the carbon is ...Universidad Nacional de Colombia Revistas electrónicas UN Agronomía Colombiana. -
Vegetative propagation of native fruit species of páramo iThibaudia floribunda/I and iCavendishia bracteata/i by cuttings
Cavendishia bracteata and Thibaudia floribunda (Ericaceae) are wild fruit shrubs native to the Andes region. This study aimed to characterize the rooting potential of basal and apical cuttings using naphthalene acetic acid ...Universidad Nacional de Colombia Revistas electrónicas UN Agronomía Colombiana. -
Network analysis of knowledge building on rural extension in Colombia
Based on the analysis of scientific papers published on rural extension in Colombia since 2010, an interpretive descriptive study was conducted to identify the level of collaboration between authors and institutions in the ...Universidad Nacional de Colombia Revistas electrónicas UN Agronomía Colombiana. -
Assessment of pesticide application quality with a manual sprayer in spinach
Two experiments were conducted to evaluate the performance of three hollow cone nozzles (TeeJet® TX 800050 VK, TeeJet® TXA 8004 VK and TX-Royal Condor®) and one flat fan nozzle (TeeJet® XR 8004 VS) with two manual application ...Universidad Nacional de Colombia Revistas electrónicas UN Agronomía Colombiana. -
Agroclimatic zoning methodology for agricultural production systems in dry Caribbean region of Colombia
The agricultural sector in Colombia and especially, small-scale agriculture subsector in the Colombian Caribbean has been very vulnerable to the negative impacts of climate variability in part due to the poor existence and ...Universidad Nacional de Colombia Revistas electrónicas UN Agronomía Colombiana. -
Detection and genome characterization of iPotato virus/i Y isolates infecting potato (iSolanum tuberosum/i L.) in La Union (Antioquia, Colombia)
Potato virus Y (PVY) is one of the most severe viruses affecting the production of potato (Solanum tuberosum) in the world. This study presents a detailed molecular analysis using nextgeneration sequencing (NGS), IC-RT-qPCR ...Universidad Nacional de Colombia Revistas electrónicas UN Agronomía Colombiana.
