Revista U.D.C.A Actualidad & Divulgación Científica最新文献

{"title":"Actividad anticoagulante in vitro del extracto etanólico de las hojas de dos especies de la familia Euphorbiaceae","authors":"Jhon Ruiz-Baquero, Oscar Camacho-Romero, Samir Bolívar-González, Alvaro Castro-Zafra","doi":"10.31910/rudca.v24.n2.2021.1681","DOIUrl":"https://doi.org/10.31910/rudca.v24.n2.2021.1681","url":null,"abstract":"Cardiovascular diseases (CVD) are a group of disorders of the heart and blood vessels, which correspond to the principal","PeriodicalId":337971,"journal":{"name":"Revista U.D.C.A Actualidad & Divulgación Científica","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126083180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Propuesta para la producción más limpia en destilerías artesanales","authors":"Alexandra Paola Panimboza-Ojeda, Angy Isabel Soto-Cabrera, Jonathan Xavier Cuyanquillo-Barrionuevo, Amaury Pérez-Martínez, Karel Diéguez-Santana","doi":"10.31910/rudca.v24.n2.2021.1500","DOIUrl":"https://doi.org/10.31910/rudca.v24.n2.2021.1500","url":null,"abstract":"","PeriodicalId":337971,"journal":{"name":"Revista U.D.C.A Actualidad & Divulgación Científica","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129340818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efecto de la fertilización orgánica y la poda sobre la producción de cacao en Cundinamarca, Colombia","authors":"Camilo Andrés Vega, Jaime Torres-Bazurto, Juan Carlos Barrientos-Fuentes, S. Magnitskiy, H. Balaguera-López","doi":"10.31910/rudca.v24.n2.2021.1818","DOIUrl":"https://doi.org/10.31910/rudca.v24.n2.2021.1818","url":null,"abstract":"Cacao has high social importance in Colombia but requires cultivation techniques that improve its productivity, especially in the production of organic cacao. Pruning and organic fertilizers were assessed as treatments to increase the bean yield in an old cacao crop in Cundinamarca. The positive effects of organic fertilizer application and pruning on the pod morphometry and bean yield were established. The application of organic fertilizers with pruning, in general, increased the length and circumference of cacao pods. A negative correlation (R=-0.618) was found among the relative chlorophyll contents in leaves at the end of the harvest period and with the number of pods per tree. A positive correlation (R=0.748) was obtained between the fresh weight of pods and the dry weight of beans. No correlation was established between the relative chlorophyll contents in leaves and the bean dry weight. Pruning plus organic fertilization increased the total dry weight of beans per tree at almost 15 %, which makes pruning with organic fertilizer application the best tool for increasing yield in organic cacao production in old plantations in Cundinamarca.","PeriodicalId":337971,"journal":{"name":"Revista U.D.C.A Actualidad & Divulgación Científica","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125299204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Atributos afectivos y cognitivos hacia la fauna silvestre y su relación con factores sociodemográficos en población rural","authors":"Leidis Toro-Julio, Estefanía Espitia-Martínez, Omar Tapasco-Alzate, Beatriz Toro","doi":"10.31910/rudca.v24.n2.2021.1840","DOIUrl":"https://doi.org/10.31910/rudca.v24.n2.2021.1840","url":null,"abstract":"The possible associations between sociodemographic factors and the degree of environmental awareness, expressed in terms of a subset of affective and cognitive attributes, can determine the incidence of environmental education programs in rural areas on the perception of various environmental problems of a local nature, as well as the position adopted towards the conservation of wild fauna. In the study area, effects on the environment, illegal hunting, mining, deforestation, burning and contamination by residues were observed. Therefore, it was important to know the level of environmental awareness of the people involved in these programs. In addition, this type of study is very important in the country since it contributes to research on the level of environmental awareness, so it is relevant to inquire about this aspect. A sample of 152 inhabitants was taken from the 15 communities in the Manso transfer area, Caldas-Colombia, to which face-to-face surveys were applied. For statistical analysis, independence tests and Multiple Correspondence Analysis were used. Within the affective attributes, it was possible to identify an association between land ownership, permanence in the area and belonging to different organizations of an associative nature with an increase in the indicator used to demonstrate environmental awareness. The study carried out exposes the treatment of empirical information that accounts for the progress made in Environmental Education programs carried out among residents of rural areas, as well as its relationship with certain pro-environmental behaviors.","PeriodicalId":337971,"journal":{"name":"Revista U.D.C.A Actualidad & Divulgación Científica","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126777475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Minadores de hojas del aguacate (Lepidoptera: Gracillariidae). Estado actual, Identificación, evaluación de daño y propuesta de manejo","authors":"F. J. Posada-Flórez, H. Arévalo-Maldonado","doi":"10.31910/rudca.v24.n2.2021.2085","DOIUrl":"https://doi.org/10.31910/rudca.v24.n2.2021.2085","url":null,"abstract":"Avocado has become one of the most important crops in Colombia. During the last two decades, the area planted with avocado has quintuplicated, and it is widespread across a wide range of high-altitude lands growing in monoculture with Hass variety. Minadores de hojas del aguacate (Lepidoptera: Gracillariidae). Estado actual, Identificación, evaluación de daño y propuesta de manejo Leaf miners of avocado (Lepidoptera: Gracillariidae). Status, identification, damage evaluation and management proposal Francisco Javier Posada-Flórez; Helber Adrián Arévalo-Maldonado Ing. Agrónomo, Ph.D. Consultor independiente, Servicios de consultoría y capacitación en laboratorio y en campo en entomología, apicultura y control biológico con énfasis en hongos entomopatógenos. Estados Unidos; e-mail: fjavierposada@gmail.com; https://orcid.org/0000-0002-7349-2240 Ing. Agrónomo, M.Sc., Ph.D. Universidad de Ciencias Aplicadas y Ambientales, Ingeniería Agronómica, Grupo de Investigación Producción Agrícola Sostenible. Bogotá, Colombia; e-mail: helarevalo@udca.edu.co; https://orcid.org/0000-0003-4401-452X *autor para correspondencia: fjavierposada@gmail.com 2 Posada-Flórez, F.J.; Arévalo-Maldonado, H.A.: minadores del aguacate en Colombia As the plantation areas increase, new sanitary problems appear, as consequences of the adoption of technical recommendations from other latitudes where the ecosystems do not have laurels and other plants related to avocado. Within the pest species, the leafminers of Lepidoptera are reported, which the main characteristic is that they develop and feed inside the leaves. The damage they cause happens mainly when the population of their natural enemies is affected. The first record of leafminers in Colombia was done from samples collected in one orchard of avocado cv. Hass in Villa Maria, Caldas where a high infestation outbreak happened as a consequence of the pesticide application following calendar spraying to prevent the attack of pests like red spider mites and thrips. The objective of this paper is to present the status of leafminer pest of avocado leaves in Colombia, providing its identification, description of the serpentine and blotch damage, and proposing recommendations for its management. This will inform the scientific community and farmers about the presence of this pest in avocado crop regions in Colombia, contributing to minimize damaging events like the aforementioned.","PeriodicalId":337971,"journal":{"name":"Revista U.D.C.A Actualidad & Divulgación Científica","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125305198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"El uso del lisímetro de pesada en clavel (Dianthus caryophyllus L.) genera ahorro en fertirriego","authors":"Germán A. Moreno-Poveda, Víctor Julio Flórez-Roncancio, Carlos A. González-Murillo","doi":"10.31910/rudca.v24.n2.2021.1940","DOIUrl":"https://doi.org/10.31910/rudca.v24.n2.2021.1940","url":null,"abstract":"The amount of fertigation excess or deficit generates nutritional unbalances given it affects pH, CE, and the nutrients balance influencing the plant development performance. In addition, the uncontrolled fertigation volume can cause an excess of leachates with detrimental effects on the environment. The Fertigation in carnation production in the Bogotá savanna is done empirically, therefore, it is essential to adjust the fertigation volume to the needs of the crop to avoid the mentioned problems. For this reason, the effect of the control of the fertigation volume with weighting lysimeters was evaluated in comparison with the management of traditional fertigation in the performance of the spray carnation plants sown in substrate under greenhouse conditions. For the evaluation, an experimental design was carried out in complete randomized blocks with a lysimeter crop system (LCS) and a traditional crop system without a lysimeter (WLS) as treatments. Irrigation volume, whole plant nutritional content in five phenological stages, pH, primary and secondary (Ca - Mg) nutrients in the substrate, and drainage solution were the variables evaluated. The LCS generates saving in the use of fertigation compared with WLS. Differences were found in the continuum plant - substrate - leached in N, K, Mg, as well as in the pH of the substrate. The LCS treatment was more efficient by generating greater dry mass accumulation, with the use of less water and nutrients without affecting the yield or quality.","PeriodicalId":337971,"journal":{"name":"Revista U.D.C.A Actualidad & Divulgación Científica","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122770016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efectos de espaciamientos sobre el crecimiento y rendimiento del fríjol caupí cultivar Caupicor 50","authors":"C. Cardona-Ayala, Félix Pastrana-Atencia, H. Araméndiz-Tatis, Miguel Espitia-Camacho, Carlos E. Cardona-Villadiego","doi":"10.31910/rudca.v24.n2.2021.2139","DOIUrl":"https://doi.org/10.31910/rudca.v24.n2.2021.2139","url":null,"abstract":"Cowpea bean is an important legume in the Caribbean region of Colombia, for its contribution to the diet of its habitants and being an alternative income for small producers. Nevertheless, the yields obtained do not exceed 600 kg ha -1 , due to the unknown of the effect of cultural methods on the species, as in the different cultivars. The purpose of the study was to evaluate the effect of different spacing and hydrogel on vegetative and reproductive characteristics of cowpea beans, cultivar Caupicor 50 in the department of Sucre of the Caribbean region of Colombia. A split-plot design was used, with three replications (blocks). Two distances between rows: 60 and 80 cm in the main plot, three spaces between plants: 20, 30, and 40 cm in the subplot, and hydrogel: 0 and 5 g / plant in the sub-sub plot were combined. The variables evaluated were: plant height, leaf area, leaf area index, crop growth rate, number of pods per plant, pod length, number of seeds per pod, the weight of one hundred seed, and seed yield/ha. The highest yield, 2,027 kg ha -1 , was estimated with 20 cm between plants and 60 cm between rows (83,333 plants ha -1 ) and was associated with greater leaf area, leaf area index and crop growth rate, and a lower number of pods per plant, pod length and weight of one hundred seeds.","PeriodicalId":337971,"journal":{"name":"Revista U.D.C.A Actualidad & Divulgación Científica","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114069460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluación fenotípica de semillas de haba (Vicia faba L.) colectadas en Nariño-Colombia","authors":"David Álvarez-Sánchez, Claudia Salazar-González, Benjamín Sañudo-Sotelo, Carlos Betancourth-García","doi":"10.31910/rudca.v24.n2.2021.1874","DOIUrl":"https://doi.org/10.31910/rudca.v24.n2.2021.1874","url":null,"abstract":"Fava bean is a legume associated with cold climate farming systems. In Colombia, it is grown mainly in the department of Nariño, 2 Álvarez-Sánchez, D.; Salazar-González, C.; Sañudo-Sotelo, B.; Betancourth-García, C.: variabilidad en semillas haba where the area and number of planted materials have been reduced due to the decrease in crop yield levels and the aggressiveness of phytosanitary problems. This study evaluated the diversity of this legume based on seed shape and color in a collection of 60 bean materials divided into seven varieties. Through digital image processing and manual measurement, polar length (LP), equatorial length (LE), LP/LE ratio, area (AR), thickness (GR) and hundred seed weight (P100) were determined, and color parameters based on the CIELab scale (L*, a* and b*) were calculated. The variables were analyzed with descriptive statistics, Pearson’s correlation and the multivariate principal component method (PCA). The results identified a high diversity of phenotypes, quantitatively characterizing the seven varieties. There was a high correlation between the variables LP, LE and AR, as well as between L* and b*. The biplot of the PCA results confirmed the variability of the collection and made it possible to generate a preliminary grouping. The research can be taken into account as a basis for the development of conservation and agronomic evaluation of this legume.","PeriodicalId":337971,"journal":{"name":"Revista U.D.C.A Actualidad & Divulgación Científica","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133596657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Aplicación de índices vegetales en café (Coffea arabica L.)","authors":"Edier Fernando Avila-Vélez, Bibiana Royero-Benavides","doi":"10.31910/rudca.v24.n2.2021.1584","DOIUrl":"https://doi.org/10.31910/rudca.v24.n2.2021.1584","url":null,"abstract":"","PeriodicalId":337971,"journal":{"name":"Revista U.D.C.A Actualidad & Divulgación Científica","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127848955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Producción de xilitol a partir de hidrolizados de raquis de palma por Candida tropicalis: optimización de las condiciones de fermentación","authors":"Katherine Manjarres-Pinzon, Niza Cristina Otero-Guzmán, Eduardo Rodríguez-Sandoval, Guillermo Correa-Londoño, Mario Arias-Zabala","doi":"10.31910/rudca.v24.n2.2021.1894","DOIUrl":"https://doi.org/10.31910/rudca.v24.n2.2021.1894","url":null,"abstract":"Ing. de alimentos, M.Sc., Ph.D. Corporación Universitaria Lasallista, Facultad de Ingeniería, Grupo de Alimentos Funcionales (GAF). Caldas Antioquia, Colombia; e-mail: katherine.manjarres@gmail.com; https://orcid.org/0000-0003-4327-6472 Ing. Biológica. Universidad Nacional de Colombia, Facultad de Ciencias Agrarias, Grupo de Alimentos Funcionales (GAF). Medellín Antioquía, Colombia; e-mail: ncoterog@unal.edu.co; https://orcid.org/0000-0002-8770-9658 Ing. Químico., Ph.D. Universidad Nacional de Colombia sede Medellín, Facultad de Ciencias Agrarias, Grupo de Alimentos Funcionales (GAF). Medellín Antioquia, Colombia; e-mail: edrodriguezs@unal.edu.co; http://orcid.org/0000-0001-9146-2419 Ing. Forestal, M.Sc., Ph.D. Universidad Nacional de Colombia sede Medellín, Facultad de Ciencias Agrarias, Grupo Biogem. Medellín Antioquia, Colombia; e-mail: gcorrea@unal.edu.co; https://orcid.org/0000-0001-7020-2546 Ing. Químico, M.Sc., Ph.D. Universidad Nacional de Colombia sede Medellín, Facultad de Ciencias, Escuela de Química. Medellín Antioquia, Colombia, Grupo de Investigación en Biotecnología Industrial. Medellín Antioquia, Colombia; e-mail: marioari@unal.edu. co; https://orcid.org/0000-0001-8190-7760","PeriodicalId":337971,"journal":{"name":"Revista U.D.C.A Actualidad & Divulgación Científica","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132157843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}