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| Registros recuperados: 755 | |
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| Leguízamo,María Claudia; Sánchez de Prager,Marina; Martínez,Javier; Vela,Diana; Clavijo,Sharon; García,Alexandra. |
| En el estudio se evaluó la actividad antimicrobiana de metabolitos de Xenorhabdus bovienii (Enterobacteriaceae), mutualista del nematodo entomoparásito Steinernema feltiae (Filipjev, 1934) clamidosporas, Cephalobina, Steinernematidae sobre Fusarium spp. y Basillus subtilis. Xenorhabdus bovienii, se extrajo a partir de larvas de Galleria mellonella infectadas con S. feltiae e incubadas en biorreactor. Su crecimiento fue medido en intervalos de 4 h durante 96 h de cultivo, en las cuales se extrajeron metabolitos por las metodologías: compuestos orgánicos, proteínas, indol, metanol, columna para cromatografía y butanol. Se utilizaron cuatro concentracciones de metabolitos de X. bovienii que se probaron contra B. subtillis y Fusarium spp., en semillas de... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacillus subtillis; Control biológico; Fusarium spp; Metabolitos secundarios; Xenorhabdus bovienii. |
| Ano: 2014 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122014000100008 |
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| Guerra-Arévalo,Héctor; Pérez Díaz,Evert B.; Vásquez Vela,Ana Lucia M.; Cerna Mendoza,Agustín; Bolaños,Manuel Doria; Arévalo López,Luís; Lopes Monteiro Neto,Joao Luiz; Guerra Arévalo,Wilson F.; Moreira Sobral,Sara Thiele; Abanto-Rodríguez,Carlos. |
| Resumen La utilización de extractos vegetales como insecticidas naturales es una alternativa eficiente y ecológicamente viable para el uso directo en el control de plagas. En el estudio se evaluó el efecto de diferentes concentraciones de resina de Jatropha curcas en el control de larvas de Hypsipyla grandella Zéller, para el efecto en un Diseño Completamente al Azar (DCA), en esquema de parcelas subdivididas, se evaluaron cinco tratamientos, en tres repeticiones y 10 discos foliares de S. macrophylla por unidad experimental. Las parcelas principales consistieron en cinco concentraciones (%) de resina de J. curcas : T1:0; T2: 10; T3: 20; T4: 30; y T5: 40 y las subparcelas en los tiempos de evaluación (horas): 6, 12, 18 y 24 en el transcurso del dia. Como... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Plagas Biocida Piñón blanco Perú Meliaceae Swietenia macrophylla; Hypsipyla grandella. Jatropha curcas. |
| Ano: 2018 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122018000300446 |
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| Caicedo-Guerrero,Samuel; Tibocha-Ardila,Yuli; Campuzano-Duque,Luis Fernando. |
| Abstract: Soybean in Colombia is constituted, like corn, as the main raw material for the production of balanced concentrates for animal feeding. The national soybean production satisfies only 7.0% of the demand for poultry-swine chain, with imports in 2014 of 363501 tons of grain and 1018256 tons of soybean meal. Currently, in Colombia, soybean is only produced in the Orinoquia region, mainly in the high plains and foothills and is part of the rice-corn-soy rotation system for the colonization of native savannas. In order to promote cultivation which allows the occupation of 500000 potentially hectares in the foothills with new varieties beyond current and meet domestic demand, Corpoica is responsible for the plant breeding. As a result of a research in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Elite lines; Genotype - environment interaction; Grain quality; Main components; Plant pathogen resistance; Rotation system. |
| Ano: 2017 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122017000200260 |
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| Araméndiz Tatis,Hermes; Cardona Ayala,Carlos Enrique; Espitia Camacho,Miguel Mariano. |
| En el Centro de Investigaciones Turipaná de la Corporación Colombiana de Investigaciones (Corpoica) (Cereté, Córdoba, Colombia -8° 31' N y 75° 58' O, a 13 m.s.n.m) se estudiaron las correlaciones, ambientales y genéticas entre seis caracteres de 24 cultivares de berenjena (Solanum melongena). Para el efecto se utilizó un diseño de bloques completamente al azar con tres repeticiones y unidades experimentales de 10 m². Los resultados mostraron que las correlaciones fueron de mayor o igual magnitud que las fenotípicas, mientras que las ambientales fueron de escaso valor. El número de frutos y el rendimiento estuvieron genéticamente correlacionados (r = 0.56, P < 0.01), la longitud y la resistencia del fruto mostraron correlación genética negativa (r =... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum melongena; Solanacea; Calidad de la planta; Rendimiento de fruto; Correlación genética. |
| Ano: 2009 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122009000400008 |
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| Dell'Orto Morgado,Marcos Antônio; Magalhães dos Santos,Carlos Eduardo; Linhales,Heloisa; Horst Bruckner,Claudio. |
| O objetivo deste trabalho foi avaliar o grau de associação entre caracteres fisicoquímicas do maracujazeiro-azedo (Passiflora edulis), auxiliando assim os programas de melhoramento que utilizam a seleção indireta. Avaliou-se 1120 frutos colhidos em ensaio com 26 famílias de irmãos completos de maracujazeiro-azedo, nos quais mensuraram-se as seguintes características: número de frutos por planta (NF), produção estimada (PE), massa média do fruto (MF), massa média da casca (MC), massa média da polpa (MP), comprimento médio do fruto (CF), diâmetro médio do fruto (DF), espessura média da casca (EC), teor médio de sólidos solúveis totais (SST), acidez total titulável média (ATT), e coloração da polpa (CP). A correlação entre número de frutos por planta com... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Passiflora edulis; Correlações; Biometria. |
| Ano: 2010 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122010000400010 |
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| Guevara Hernández,Francisco; Rodríguez Larramendi,Luis; Gómez Castro,Heriberto; Pinto Ruiz,René; Rodríguez Galván,Guadalupe; Perezgrovas Garza,Raúl. |
| En el estudio se identificaron y analizaron los criterios socio-antropológicos fundamentados en etnoagronomía y etnobotánica de los productores para seleccionar semillas de chayote (Sechium edule Jacq. Sw.) en zonas rurales de los municipios Villa Corzo y Villaflores (Chiapas, México). En entrevistas semi-estructuradas realizadas a 60 productores se describieron los criterios locales para seleccionar las semillas de esta hortaliza, considerando características de color, tamaño y presencia de espinas en los frutos, así como la obtención de variedades y recomendaciones para la siembra. Sin considerar la procedencia de los productores, el cultivo del chayote se realiza independientemente del tamaño, el color o la presencia de espinas en los frutos. Más de 60%... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Etnoagronomía; Etnobotánica; Conocimiento tradicional; Variedades; Chiayote; Chiapas; México. |
| Ano: 2015 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122015000200009 |
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| de Barros,Emerson Cristi; Soares Reis,Iolanda Maria; Silva do Sacramento,José Augusto Amorim; Taube.,Paulo Sergio; Cardoso Feijao,Igor; Nogueira de Sousa,Willian; Fonseca Brito,Nayane. |
| Abstract The cowpea (Vigna unguiculata [L.] Walp) is of social and economic importance in developing countries. There are several factors that lead to low cowpea yields in tropical regions, such as pests and low technological development. This study aimed to identify and quantify losses in the critical component of production, and the key loss factors for three cowpea varieties (buttermilk, milk, and vinegar) grown in Santarém, Brazil, and inoculated or not with Bradyrhizobium japonicum. Crop life tables, loss factors, and production components of the three varieties were evaluated. Differences in yield and total losses were observed between varieties, but not between treatments with and without inoculant. In all three varieties, flowers were a critical... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crop life tables; Productivity; Production losses; Varieties; Vigna unguiculata. |
| Ano: 2022 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122022000100055 |
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| Rimoldi Tavanti,Renan Francisco; Freddi,Onã da Silva; Tavanti,Tauan Rimoldi; Lorenzon,Kayane; dos Santos,Igor de Morais; Demicheli,Matheus; Costa,Letícia Carolina; Montanari,Rafael; Breda,Carlos Cesar. |
| Abstract An unresolved question about the use of animal waste in agriculture is its effect on the physical and chemical attributes of soil, especially in commercial grain producing areas that have adopted direct seeding system (DSS). Aiming at contributing to the clarification of this question, we conducted a study in the mid-north region of the Mato Grosso state, Brazil, in a soybean and maize commercial area consolidated in DSS. Different doses of liquid swine manure (LSM) were applied and compared with NPK mineral fertilization. The aim of this study was to evaluate the physical and chemical quality of the soil and the productive potential of the soybean and maize crops under LSM doses and NPK fertilizer. Results indicated an increase in levels of K, P,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max L.; Zea mays L.; Fertilizers; Soil physics; Soil fertility; Direct sowing system. |
| Ano: 2018 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122018000200303 |
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| Giacobbo,Clevison Luiz; Lugaresi,Adriana; Uberti,Alison; Santana,Alice Silva; Prado,Jean do; Louis,Bachelor; Castagnera,Luan; Culau,Lucas Roberto. |
| Abstract There was increased fruit consumption with potential health benefits in the last years, being blackberry one of these fruits. The objective of this work was to evaluate the performance of Blackberry cultivars and the influence of main stem management on BRS-Tupy cultivar. The first experiment assessed the cultivars: BRS-Tupy, Cherokee, Xavante, and Guarani; in the second experiment the evaluated prunings were: drastic winter pruning, 2, 3, and 4 main primocanes. The variables analyzed were: green and dry leaf mass, leaf area, number and average fruit mass, production per plant, average size and percentage of fruit moisture, and soluble solids. In relation to average weight, fruit size and yield, BRS-Tupy cultivar was superior in both cycles... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Climate; Primocanes; Production; Rubus sp.; Small fruits. |
| Ano: 2021 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122021000200113 |
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| Santos-Pereira,Ivan dos; Campos,Ângela Diniz; Greigh de Brito,Giovani; Corrêa-Antunes,Luis Eduardo; Martins-Pereira,José Francisco. |
| Abstract The objective of this work is to evaluate the concentration of cyanogenic glycosides CGs (amygdalin and prunasin) in the cultivar and rootstock, as an indicator of compatibility in pear grafts. The work consists of two experiments. Experiment 1 evaluated Cascatense/Pyrus Calleryana and Cascatense/EMC combinations. Experiment 2 evaluated the combinations Packham’s Triumph/Adams, Santa Maria/Adams, and Rocha/Adams. The experimental design of the two experiments was randomized blocks with four replications. The evaluations were carried out in the spring and summer of the harvest 2014/2015. The results indicated graft compatibility in the Cascatense/P. Calleryana, Packham’s Triumph/Adams, and Rocha/Adams combinations; slight incompatibility of Santa... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amygdalin; Cydonia; Grafting; Incompatible; Prunasin. |
| Ano: 2021 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122021000100073 |
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| Souza-Macedo,Viviane de; García-Dávila,Mario Augusto; Castro,Gisele Renata de; Garzón-Bautista,Yuri Marcela; Caetano,Creucí Maria. |
| Abstract The genus Capsicum comprises a large group of hot and sweet peppers, with different morphological varieties and degree of fruits pungency. Due to its active principles is widely used in cooking and in traditional medicine, being sold in large worldwide. In order to provide cytogenetic information which supporting plant breeding programs, this study aimed to analyze the meiotic behavior, chromosome number and pollen viability of the three species of greater economic importance of Capsicum (C. annuum, C. frutescens and C. chinense). Therefore, fruits and flower buds were collected from the Experimental Center of the Universidad Nacional de Colombia, campus Palmira- CEUNP to the corresponding mitotic, meiosis and pollen viability analysis. Plants... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chromosome number; Meiotic behavior; Meiotic index; Plant genetic resources conservation; Ploidy level; Pollen viability. |
| Ano: 2017 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122017000400612 |
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| Registros recuperados: 755 | |
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