Revista Corpoica-Ciencia y Tecnologia Agropecuaria最新文献

{"title":"Estrategias de control de Moniliophthora roreri y Moniliophthora perniciosa en Theobroma cacao L.: revisión sistemática","authors":"Paola Andrea Tirado-Gallego, Andrea Lopera-Álvarez, L. A. Ríos-Osorio","doi":"10.21930/RCTA.VOL17_NUM3_ART:517","DOIUrl":"https://doi.org/10.21930/RCTA.VOL17_NUM3_ART:517","url":null,"abstract":"One of the most important limitations of cocoa production worldwide is primarily diseases caused by the pathogenic fungi of the genus Moniliophthora sp., especially, Moniliophthora roreri and Moniliophthora perniciosa, causing moniliasis and the witches' broom disease, respectively; both diseases are highly invasive and endemic in cocoa. The objective of this study was to describe the control strategies that can be used to handle the moniliasis and witches' broom diseases. This study was conducted in accordance with the Prisma (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) statement, for which a systematic literature search in the Scien-ceDirect, Springer Link and Scopus databases was used. Original investigation articles over the last 12 years were included, inclusion and exclusion criteria were also applied. In countries like Brazil and Costa Rica, the year with most reports of related articles was 2008. The most used strategies for the disease control are the phytosanitation, the copper-based fungicides and biologic agents control of fungus and bacteria, specially, Trichoderma sp. and Bacillus sp. One of the most recommended methodologies on the studied articles was the optimization of treatments employing the combination of physical, biological and chemical agents.","PeriodicalId":41142,"journal":{"name":"Revista Corpoica-Ciencia y Tecnologia Agropecuaria","volume":"17 1","pages":"417-430"},"PeriodicalIF":0.2,"publicationDate":"2016-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68410370","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":"Caracterización de maíz procedente del departamento del Magdalena, Colombia","authors":"Catherine Pardey Rodríguez, M. A. G. Dávila, Nataly Moreno Cortés","doi":"10.21930/RCTA.VOL17_NUM2_ART:487","DOIUrl":"https://doi.org/10.21930/RCTA.VOL17_NUM2_ART:487","url":null,"abstract":"The Research Group of Tropical Plant Breeding of Magdalena University has several corn introductions original from the Colombian Caribbean; 13 of them were selected, which were donated by the National University of Colombia Campus Palmira, with original passport data from the department of Magdalena. The introductions were characterized to study the phenotypic variability. Sowing was done at the Center for Agricultural and Forestry Development of the University of Magdalena, located in the city of Santa Marta, following a randomized complete blocks design with three replications; 20 plants per introduction were planted and 5 of them were assessed per experimental unit. Twenty eight descriptors were studied. Analyses of variance, frequencies main component, multiple, discriminant, and cluster were performed. Statistical differences among introductions for most of the variables were detected and it is considered as an indicator of diversity. The main components and cluster divided the sample in five sets; there was a gradual and continuous difference in characters inside the groups. The genotypes showed a genetic similarity with introduction 91, the largest genetic distance was with the Synko commercial hybrid. By sorting introductions by municipality, the trend to point out Foundation as the starting point was a trend and is likely that dispersion occurred from there.","PeriodicalId":41142,"journal":{"name":"Revista Corpoica-Ciencia y Tecnologia Agropecuaria","volume":"17 1","pages":"167-190"},"PeriodicalIF":0.2,"publicationDate":"2016-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68409270","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":"Estudio de variabilidad genética en aislamientos de Leptospira spp., en sistemas bovinos de carne y doble propósito","authors":"E. C. Bustillo, R. E. P. Burbano, José Luis Rodríguez-Bautista, José Luis Garcés Bautista, José Luis Parra Arango","doi":"10.21930/RCTA.VOL17_NUM2_ART:492","DOIUrl":"https://doi.org/10.21930/RCTA.VOL17_NUM2_ART:492","url":null,"abstract":"Leptospira spp. serovars were isolated from bovine kidney and urine in the Cundinamarca and Meta departments of Colombia. The isolates were classified by both, phylogenetic analysis and ribotyping, using 16SDNAr as a marker gene. The Phylogenetic analysis allowed the classification of the isolates into two of the three genomaspecies recognized: pathogenic and intermediate. The latter is of great importance because its immunological behavior in a host is unknown and this could generate variable answers. Ribotyping yielded “ribopatterns” of four Leptospira isolates and five reference strains with major identity; the analysis showed the presence of two predominant profiles in the four isolates. One profile was in line with the intermediate reference strain and the other profile was similar to the pathogenic reference strain, Copenhageni and Lai serovars. The isolate by phylogenetic analysis was placed within the intermediate type Leptospiras and its pathogenicity is still under study. The phylogenetic analysis of Leptospira species based on comparative sequences of 16SDNAr gene confirmed the possibility of identifying three groups according to their pathogenic status (pathogenic, intermediate and saprophytic), where the taxonomic purpose of the markers, showed consistent results in obtaining sequences of the 16SDNAr gene, grouped in a phylogenetic tree.","PeriodicalId":41142,"journal":{"name":"Revista Corpoica-Ciencia y Tecnologia Agropecuaria","volume":"17 1","pages":"229-236"},"PeriodicalIF":0.2,"publicationDate":"2016-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68409979","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":"Composición química y distribución de materia seca del fruto en genotipos de plátano y banano","authors":"C. M. Cardozo, Gerardo Cayón Salinas, Gustavo Adolfo Ligarreto Moreno","doi":"10.21930/RCTA.VOL17_NUM2_ART:491","DOIUrl":"https://doi.org/10.21930/RCTA.VOL17_NUM2_ART:491","url":null,"abstract":"The distribution of dry matter in the bunch and chemical attributes of the fruit were evaluated in 12 cultivars of plantain and banana from the Musaceae Colombian Collection (CCM) and the similarities among the clusters were determined by a statistical analysis of main components and conglomerates The variables percentages of matter in pulp, percentages of matter in nuts, percentages of fresh pulp, starch content, K, Ca, Cu, Mn, total sugars, ash, Fe, Zn, and Cu represented the greatest differentiation of the cultivars. Cultivars Orishelle (group 1) and FHIA-1 (group 2) had the highest levels of the minerals vFe and Zn; Orishelle, is an important source of minerals for human nutrition in general given its high content of Fe (51.7 ppm), which is above the overall average of the other cultivars evaluated (29.1 ppm), whereas higher levels of total sugars were found in the hybrid FHIA-21 (group 2) and cultivar Gross Michel coco (subgroup 3B). With a value of 83 % for the material, Pisang Mas (subgroup 3B), followed by Africa 1 (subgroup 3A) with 82.6 % and Gross Michel coco with 82.1 %, showed the highest percentages of matter in pulp with respect to the total per bunch. The cultivars Cachaco (group 2) and Dominico (subgroup 3A) had the highest percentages of fresh nuts per cluster.","PeriodicalId":41142,"journal":{"name":"Revista Corpoica-Ciencia y Tecnologia Agropecuaria","volume":"17 1","pages":"217-227"},"PeriodicalIF":0.2,"publicationDate":"2016-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68409910","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":"Análisis del mercado de piña Gold y Perolera en dos principales centrales mayoristas de Colombia","authors":"A. García, A. M. Reina, Javier Orlando Orduz Rodríguez","doi":"10.21930/RCTA.VOL17_NUM2_ART:486","DOIUrl":"https://doi.org/10.21930/RCTA.VOL17_NUM2_ART:486","url":null,"abstract":"In this work the behavior of the price of two varieties of pineapple Gold and wholesalers Perolera two plants in Colombia is analyzed. The techniques used were the cointegration and Granger causality test, for which prices were taken pineapple, in the period 2006-2011 of wholesale markets Corabastos (in the case of Bogota) and the Central Wholesale Itagui (for Medellin). The theoretical framework was the law of one price. The work proved that there is market integration in the process of price formation. The results allow us to see that there is independence between the prices of the two markets. Cointegration tests indicate that the series are cointegrated itself, so that in the absence of external shocks, the series converge in the long term. We conclude that, although there is no causal link between the markets, these are themselves integrated in the long run, evidencing a fulfillment of the law of one price. The study does not include an analysis of the distances between production areas and consumption centers to consider the effect of transport costs when setting the price. Future research could consider such variables as quality and consumer preferences.","PeriodicalId":41142,"journal":{"name":"Revista Corpoica-Ciencia y Tecnologia Agropecuaria","volume":"17 1","pages":"149-165"},"PeriodicalIF":0.2,"publicationDate":"2016-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68409265","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":"Variabilidad espacial de los atributos químicos del suelo en el rendimiento y calidad de café","authors":"Felipe Garay, J. H. C. Tamayo, Yolanda Rubiano-Sanabria","doi":"10.21930/RCTA.VOL17_NUM2_ART:493","DOIUrl":"https://doi.org/10.21930/RCTA.VOL17_NUM2_ART:493","url":null,"abstract":"Given the environmental and economic importance of the rational use of inputs for a competitive and sustainable agriculture, a greater understanding of the different variables involved in agricultural production is required. Therefore, the aim of this study was to establish the spatial behavior of the chemical properties of the soil and their relationship with coffee yield and quality on Typic Hapludands. Sampling was done randomly in 64 georeferenced points to a depth of -0.20. Data were analyzed using descriptive and geostatistics statistics, linear correlations and multivariate methods cluster and principal components (PCA); additionally, the interpolation of data was conducted using the kriging method. The descriptive analysis showed high variability for chemical attributes, in terms of geostatistics, the results showed spatial dependence for all attributes except for the content of B in the soil. There was a 35.88 % correlation between the soil attributes (SOC content) and the attributes of the crop (yield). Besides, an inverse relationship of 40.98 % between the reduction in threshing (decrease) and the Ca content in soil was observed. Both principal analysis (PCA) components and cluster analysis showed less relevance to the analysis on the attributes Na, P, B and yield. From cluster analysis and spatial distribution, management of coffee growing is proposed.","PeriodicalId":41142,"journal":{"name":"Revista Corpoica-Ciencia y Tecnologia Agropecuaria","volume":"17 1","pages":"237-254"},"PeriodicalIF":0.2,"publicationDate":"2016-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68410028","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":"Remoción de cipermetrina presente en el baño de ganado utilizando humedales construidos","authors":"J. Negrete, José Gregorio Ortega-Ruíz, Amado Enrique Navarro Frómeta, Germán Holland Enamorado Montes, Iván David Urango Cardenas, José Pinedo Hernández, José David Durango Hernández, Arnulfo Martínez","doi":"10.21930/RCTA.VOL17_NUM2_ART:489","DOIUrl":"https://doi.org/10.21930/RCTA.VOL17_NUM2_ART:489","url":null,"abstract":"Ectoparasite control in the livestock sector involves the use of chemicals to prevent production losses. In small farms that produce milk in the Cordoba department, the use of the pumping system for the cattle bath is common between farmers. In this work, cypermethrin degradation efficiency was evaluated in three lab-scale subsurface flow constructed wetland planted with Limnocharis flava, Cyperus papyrus and Alpinia purpurata sp., and one unplanted system, all of the beds were gravel based; then, total suspended solids and total phosphorus retention, and elimination of chemical oxygen demand were measured as water quality parameters. The wastewater was pretreated in a descending-ascending slow sand filter, and then was conducted to a wetland continuous flow fed at 7 ml/min. Limnocharis flava bed was higher for the degradation of organic compounds, with 97.9 ± 2.5 % and 69.1 ± 3.7 % for cypermethrin and chemical oxygen demand respectively, with statistically significant differences (p < 0,05) respect to unplanted bed. The higher SST removal were found in the Cyperus papyrus wetland, with 62,0 %, however, no differences were observed with the other evaluated planted systems, as opposed these were significantly higher than unplanted wetlands.","PeriodicalId":41142,"journal":{"name":"Revista Corpoica-Ciencia y Tecnologia Agropecuaria","volume":"121 1","pages":"203-216"},"PeriodicalIF":0.2,"publicationDate":"2016-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68409307","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 de las aguas residuales del lavado de estanques multipropósito con cultivo de trucha arcoíris (Oncorhynchus mykiss)","authors":"Mónica Alexandra Luna Imbacuán, Francisco Campos Bermúdez, Obeimar Medina Gutiérrez","doi":"10.21930/RCTA.VOL17_NUM2_ART:488","DOIUrl":"https://doi.org/10.21930/RCTA.VOL17_NUM2_ART:488","url":null,"abstract":"Fish production generates two types of water flow: a continuous one related to the normal operation and an intermittent one associated to the cleaning of the seeding ponds. The multipurpose ponds (multipro) are novel systems that provide advantages compared to conventional design ones, so the recent study searches to was focused to determine the physical and chemical quality and treatability of their washing effluents. The multipurpose ponds (multipro), worked to a real scale, by using initial and final seed densities of 5 kg/m3 and 8.9 kg/m3 respectively. The ponds were cleaned every 72 hours, and different samples were taken to determine the chemical-physical characteristics following the standard methods. The main results show that the effluent from cleaning represents a volume of 1.5 % of the total generated in the normal daily operation. Additionally, the effluent showed average values of 128 mg/L of total suspen ded solids (TSS), 94 mg/L of chemical oxygen demand (COD), 25 mg/L of biochemical oxygen demand (BOD5), 4.7 mg/L of total Kjeldahl nitrogen (NTK) and 0.6 mg/L of total phosphorus (PT). The biodegradability index was 0.30, which implies a limited possibility for direct treatment by means of biological processes. It is suggested to study the primary sedimentation or filtration through a geotextile. The selection of the treatment unit is made according to the characteristics of the particles in the water column.","PeriodicalId":41142,"journal":{"name":"Revista Corpoica-Ciencia y Tecnologia Agropecuaria","volume":"17 1","pages":"191-202"},"PeriodicalIF":0.2,"publicationDate":"2016-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68409277","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":"Uso múltiple de leguminosas como abono verde, en rotación con maíz, y heno, para producción de leche","authors":"Edwin Castro Rincón, Andrea Milena Sierra Alarcón, José Edwin Mojica Rodríguez, J. C. Fornaguera, C. Aguilar","doi":"10.21930/RCTA.VOL17_NUM1_ART:456","DOIUrl":"https://doi.org/10.21930/RCTA.VOL17_NUM1_ART:456","url":null,"abstract":"The dry tropical livestock systems go through dramatic decrease in milk production during the dry season. This can be mitigated by including legumes as green manure in forage crops as silage and hay to feed cows. Two experiments were conducted to evaluate 1) the contribution of legumes to milk production in cows supplemented with Canavalia brasiliensis as hay and 2) the effect of the removal of legume (5 levels between 0-100 %) on corn production as forage. A direct relationship between the level of legume biomass removal and reduced maize yield (r = 0.85) was observed. When levels of removal of C. brasiliensis were below 50 %, the forage yield of corn was not affected (MS 11,283 kg ha-1) compared to non-removal treatment (12,601 kg MS ha-1)(p > 0.05). At the time of corn harvest, the total nitrogen decreased (15-20 %); NO3 varied between 8 and 26 mg/kg, with lower levels contained in the removal of 75 to 100 %; and 15 % organic C increased with the removal of 0, 25 and 50 % legume. Regarding the second experiment, it was found that cows supplemented with hay C. brasiliensis, increased their milk production by 17 % with supplementation of 1.5 % LW/day. The compositional quality of milk did not change due to the treatment of hay supplementation of C. brasiliensis.","PeriodicalId":41142,"journal":{"name":"Revista Corpoica-Ciencia y Tecnologia Agropecuaria","volume":"116 1","pages":"17-29"},"PeriodicalIF":0.2,"publicationDate":"2016-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68409286","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 de alternativas de secado en el proceso de elaboración de harina de lombriz","authors":"Laura Suárez-Hernández, Rolando Barrera-Zapata, Andrés Felipe Forero-Sandoval","doi":"10.21930/RCTA.VOL17_NUM1_ART:461","DOIUrl":"https://doi.org/10.21930/RCTA.VOL17_NUM1_ART:461","url":null,"abstract":"^les^aLa produccion de harina de lombriz comprende varias etapas, la mas critica es el proceso de secado debido a factores como el tiempo y los requerimientos energeticos. En la literatura, la informacion disponible acerca de dicho proceso es limitada. Debido a esto, en el presente trabajo, se evaluaron cuatro tecnicas de secado viables a ser implementadas por lombricultores: al sol, en horno, en tunel de secado y asistido por microondas. Para todas las tecnicas, se obtuvieron cineticas de secado y se evaluaron parametros especificos como: material de las bandejas de secado al sol (acero inoxidable y ceramico), potencia (30 %, 50 % y 80 %) y cantidad de material a secar (72 y 100 g) para secado por microondas, temperatura (50, 65, 90 y 100 °C) para secado en horno, y temperatura (50 y 63 °C) y velocidad del aire (2,9 y 3,6 m/s) para secado en tunel de secado. Como resultado, se encontro que la tecnica mas eficiente es el tunel de secado, debido a que combina la transferencia de calor por conduccion y conveccion y permite el control de los parametros de operacion. Finalmente, se realizaron analisis bromatologicos a las muestras obtenidas en cada tecnica de secado. El contenido de proteina cruda para secado al sol, secado en microondas, horno y tunel de secado fueron, respectivamente: 66,36 %, 67,91 %, 60,35 % y 62,33 %, lo que indica que el metodo de secado y los parametros de operacion no afectan de manera significativa el contenido de proteina cruda.^len^aProduction of earthworm flour includes several steps, among which the most critical is the drying process due to factors such as time and energy requirements. In addition, the information available about this process is relquite limited. Thus, this work evaluated four drying techniques likely to be implemented by lombricultores: sun drying, oven drying, drying tunnel and microwave assisted drying. Drying kinetics values were obtained for all drying techniques, and specific parameters as the following were evaluated: drying tray material (stainless and ceramic steel) for sun drying, microwave power (30 %, 50 % and 80 %) and amount of material to be dried (72 and 100 g) for microwave assisted drying, temperature (50, 65, 90 and 100 °C) for oven drying, and temperature (50 and 63 °C) and air speed (2.9 to 3.6 m/s) for tunnel drying. It was determined that the most efficient technique is the drying tunnel, because this allows the combination of heat transfer by conduction and convection, and enables controlling the operating parameters. Finally, nutritional analyzes were performed in samples obtained by each drying technique evaluated. The crude protein content for sun drying, microwave assisted drying, oven drying and tunnel drying were 66.36 %, 67.91%, 60.35% and 62.33% respectively, indicating that the drying method and operating parameters do not significantly affect the crude protein content.^lpt^aA producao farinha de minhoca compreende varias etapas, a mais critica e o processo de secagem de","PeriodicalId":41142,"journal":{"name":"Revista Corpoica-Ciencia y Tecnologia Agropecuaria","volume":"17 1","pages":"55-71"},"PeriodicalIF":0.2,"publicationDate":"2016-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68409194","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}