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Variability and genetic structure of yellow passion fruit (Passiflora edulis f. flavicarpa Degener) in Colombia using microsatellite DNA markers

Abstract: Colombia is one of the leading producers of yellow passion fruit but the genetic studies based on molecular markers from commercial plantations have not been considered to select interesting market material. The goal of this study was to assess the genetic va

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Identification and freedom to operate analysis of potential genes for drought tolerance in maize

Abstract: Drought tolerance is an important character for agricultural crops, particularly corn. Genes confering this feature can be patented, thus hindering their use. From a thorough analysis, three genes (DREB, ZAT10 and CspB) were identified and their sequences wer

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Drought stress affects physiological parameters but not tuber yield in three Andean potato (Solanum tuberosum L.) cultivars

Abstract: This study evaluated the effect of water deficit on the physiological response and yield of three Andean potato cultivars. Leaf water potential (Ψw), soil matric potential (SMP), photosynthesis (A), stomatal conductance (gs), transpiration (E), intrinsic wate

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Leaf area index of potato (Solanum tuberosum L.) crop under three nitrogen fertilization treatments

Abstract: Nitrogen fertilization has considerable effects on growth and yield of potato crop. Leaf expansion is one of the most important growth parameters that can be used to optimize nitrogen fertilization management in agroecological practices. We evaluated the effe

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Internal morphology and histology of blueberry Vaccinium corymbosum L. (Ericaceae) in Lima, Peru

Abstract: Although there is a lot of information about cultivation, use and medicinal properties of blueberry Vaccinium corymbosum, there is still little information about its internal morphology and histology. Therefore, we proposed to know more of those aspects and t

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Biomass decomposition dynamic in agroforestry systems with Theobroma cacao L. in Rionegro, Santander (Colombia)

Abstract: The study was carried out in an agroforestry system (AFS) with cacao trees already established in La Suiza Research Center, Corpoica, located in Rionegro, Santander (Colombia). The objective was to evaluate biomass input and nutrient release rate of the speci

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Growth of aloe vera (Aloe barbadensis Miller) basal shoots in companion planting systems

Abstract: Aloe vera (Aloe barbadensis) is an important plant to cosmetics, pharmaceuticals, and food industry worldwide. In Colombia its cultivation has grown even when technical crop management is unknown. This study evaluated the growth of three aloe basal shoots wei

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Response of radish seedlings (Raphanus sativus L.) to different concentrations of ammoniacal nitrogen in absence and presence of silicon

Abstract: There are unknown thresholds about the effects of ammonia toxicity in the cultivation of radish and its prejudice is higher in the root than in the aerial part, been the use of silicon an alternative to mitigate this toxicity. The objective was to evaluate th

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Relationship between crop nutritional status, spectral measurements and Sentinel 2 images
Luis Joel Martínez M.

Abstract: In order to monitor the nutritional status of some crops based on plant spectroscopy and Sentinel 2 satellite images in Colombia, spectral reflectance data were taken between 350 and 2,500 nm with a FieldSpec 4 spectrometer in rubber, rice, sugar cane, maize,

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Evaluation of the growth and quality of lettuce (Lactuca sativa L.) in a closed recirculating hydroponic system

Abstract: The production of lettuce in hydroponic systems with a recirculating nutrient solution has been growing, so it is necessary to evaluate the growth and quality of production under this system. Two harvest cycles were evaluated, comparing the behavior of physio

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Growth of Jatropha curcas L. fertilized with nitrogen and potassium under conditions of dry tropical forest of Colombia

Abstract: Due to the demand in biofuel, the plant species that are not eatable and do not compete with traditional crops in Colombia, such as Jatropha curcas L., have become an important option. To produce more knowledge on the growth of this species, the research was

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Effect of organic fertilization on yield and quality of rosemary (Rosmarinus officinalis L.) essential oil

Abstract: Rosemary production (Rosmarinus officinalis L.) in Colombia is destined mainly for international markets (2.898 t in 2006), Although the national demand is low, this is a promising crop in some areas of the country, having potential to enhance producers life

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Effect of deficit irrigation on the postharvest of pear variety Triunfo de Viena (Pyrus communis L.) in Sesquile (Cundinamarca, Colombia)

Abstract: A technique settled to optimize the use of water resources is known as Controlled Deficient Irrigation (CDI), for which this experiment was carried out to determine the effect of a three water laminae: 100 (T1), 25 (T2) and 0% (T3) crop´s evapotranspiration (

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Typification of the production system of snuff (Nicotiana tabacum) in the Guanenta province, Santander department, Colombia

Abstract: In the province of Guanenta (Santander), lack of technical assistance received by producers is one of the main obstacles to the production of snuff. The objective of this research was to characterize the snuff production systems in the province, considering t

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Technological factors associated with oil palm yield gaps in the Central Region in Colombia

Abstract: This study builds on the results from a previous study (Ruiz, 2017), aimed to identify and quantify yield gaps in a sample of lots from small and medium scale producers, all suppliers of the same mill. The technical staff from the mill provides technical assi

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