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Search Results: 1 - 10 of 502393 matches for " Carlos A; Hechevarría Sosa "
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Fecha de plantación y momento de cosecha de Artemisia absinthium L.
Rodríguez Ferradá,Carlos A; Hechevarría Sosa,Isabel; Fuentes Fiallo,Víctor;
Revista Cubana de Plantas Medicinales , 2004,
Abstract: 8 plantations of artemisia absinthium l were established in a ferrolitic red hydrated soil at "dr. juan tomás roig" experimental station of medicinal plants from january to august (one a month) in 1999 and 2000 by using plantules obtained in vitro.the plantation frame was of 2 rows by bed (30 cm between rows) with a distance of 40 cm between plants. the beds were distributed by a randomized block design with 3 replicas for every treatment. two harvests were made in each treatment and year, with a cutting height of 40 cm . two dates were used for the beginning of the harvest at 5 and 6 months after the plantation was established. the second harvests were also carried out at the same time intervals. the foliage yieldings, the height and the number of branches in plants were evaluated. data were processed by using a double classification variance analysis. the means were compared by using duncan's multiples ranges test. the results showed that it should be planted in january, when the highest yieldings of plant material are obtained, and that it should be harvested at 5 months of age.
Fecha y distancia de plantación en el cultivo del tilo (Justicia pectoralis Jacq. var. stenophylla Leonard)
Rodríguez Ferradá,Carlos A; Hechevarría Sosa,Isabel; Fuentes Fiallo,Víctor R;
Revista Cubana de Plantas Medicinales , 2003,
Abstract: the cultivation of medicinal plants is an excellent way to obtain a raw drug with the necessary requirements to use it as a source of raw materials in the production of phytodrugs and to use it also as a drug of vegetable origin. in order to determine the best date and the optimum distance to plant linden (justicia pectoralis jacq. var. stenophylla leonard), it was evaluated the yielding in fresh foliage of the cultivation in beds with a hydrated red ferriferous soil at "dr. juan tomás roig" experimental station of medicinal plants, in san antonio de los ba?os, havana, in march and december. linden was cultivated by a randomized block design with 3 replicas by treatment and 4 plantation frames composed of the combinations of 2 or 3 rows and distances between plants from 10 to 20 cm. 5 crops were obtained at a cut height of 10 cm. the first was attained 4 months after being planted and the rest at intervals of 2 months. march proved to be the best date for cultivation. the cultivation frame at 3 rows at any of the 2 distances used between plants was that of the highest yielding. the first three crops were the most productive.
Momento óptimo de cosecha en verbena cimarrona, Stachytarpheta jamaicensis (L.) Vahl
Hechevarría Sosa,Isabel; Rodríguez Ferradá,Carlos Alberto; Leal López,Ida María;
Revista Cubana de Plantas Medicinales , 2003,
Abstract: in " dr juan tomas roig" center medicinal plant experimental located san antonio de los ba?os en la habana province, stachy stachytarpheta jamaicensis (l.) vahl., was grown in hydrated red ferralytic soil. the height of plants, fresh mass performance indexes, presence of flavonoides and percentage of kercentine at 3,4,5,6 and 7 months after transplantation were determined in a crop. the optimun time for cropping was at 6 months aftes transplantation, which made et possible to obtain performance indexes of 851, 54 kg/ha of fresh mass, with 0,05 % of kercentine content.
Fecha y distancia de plantación en el cultivo del tilo (Justicia pectoralis Jacq. var. stenophylla Leonard)
Carlos A Rodríguez Ferradá,Isabel Hechevarría Sosa,Víctor R Fuentes Fiallo
Revista Cubana de Plantas Medicinales , 2003,
Abstract: El cultivo de especies medicinales constituye una excelente vía para la obtención de una droga cruda con los requerimientos necesarios para su utilización como fuente de materia prima en la producción de fitofármacos y para su empleo como medicamento de origen vegetal. A fin de determinar la mejor fecha y la distancia óptima para el cultivo del tilo (Justicia pectoralis Jacq. var. stenophylla Leonard), se evaluó el rendimiento en follaje fresco del cultivo en canteros sobre un suelo ferralítico rojo hidratado de la Estación Experimental de Plantas Medicinales "Dr. Juan Tomás Roig" en San Antonio de los Ba os, La Habana, en marzo y diciembre. La plantación se realizó con un dise o de bloques al azar con tres réplicas por tratamiento y con cuatro marcos de plantación formados por las combinaciones de dos y tres hileras y distancias entre plantas de 10 y 20 cm.. Se hicieron 5 cosechas a una altura de corte de 10 cm, la primera a los cuatro meses de realizada la plantación y el resto a intervalos de dos meses. Marzo resultó la mejor fecha de plantación. El marco de plantación a tres hileras, a cualquiera de las dos distancias entre plantas empleadas fue el de mayor rendimiento. Las tres primeras cosechas fueron las más productivas. The cultivation of medicinal plants is an excellent way to obtain a raw drug with the necessary requirements to use it as a source of raw materials in the production of phytodrugs and to use it also as a drug of vegetable origin. In order to determine the best date and the optimum distance to plant linden (Justicia pectoralis Jacq. var. Stenophylla Leonard), it was evaluated the yielding in fresh foliage of the cultivation in beds with a hydrated red ferriferous soil at "Dr. Juan Tomás Roig" Experimental Station of Medicinal Plants, in San Antonio de los Ba os, Havana, in March and December. Linden was cultivated by a randomized block design with 3 replicas by treatment and 4 plantation frames composed of the combinations of 2 or 3 rows and distances between plants from 10 to 20 cm. 5 crops were obtained at a cut height of 10 cm. The first was attained 4 months after being planted and the rest at intervals of 2 months. March proved to be the best date for cultivation. The cultivation frame at 3 rows at any of the 2 distances used between plants was that of the highest yielding. The first three crops were the most productive.
Momento óptimo de cosecha en verbena cimarrona, Stachytarpheta jamaicensis (L.) Vahl
Isabel Hechevarría Sosa,Carlos Alberto Rodríguez Ferradá,Ida María Leal López
Revista Cubana de Plantas Medicinales , 2003,
Abstract: En la Estación Experimental de Plantas Medicinales " Dr. Juan Tomás Roig ", en San Antonio de los Ba os, La Habana, se cultivó Verbena cimarrona, Stachytarpheta jamaicensis (L.) Vahl., en un suelo ferralítico rojo hidratado. Se determinó en una cosecha la altura alcanzada por las plantas, los rendimientos de masa fresca, la presencia de flavonoides y los porcentajes de quercetina a los 3,4,5,6 y 7 meses del trasplante. El momento óptimo para la cosecha fue cuando las plantas tuvieron 6 meses del trasplante, que posibilitó obtener rendimientos de 851,54 kg/ha de masa fresca, con un 0,05 % de quercetina. In " Dr Juan Tomas Roig" Center Medicinal Plant Experimental located San Antonio de los Ba os en La Habana province, Stachy Stachytarpheta jamaicensis (L.) Vahl., was grown in hydrated red ferralytic soil. The height of plants, fresh mass performance indexes, presence of flavonoides and percentage of kercentine at 3,4,5,6 and 7 months after transplantation were determined in a crop. The optimun time for cropping was at 6 months aftes transplantation, which made et possible to obtain performance indexes of 851, 54 kg/ha of fresh mass, with 0,05 % of kercentine content.
Fecha de plantación y momento de cosecha de Artemisia absinthium L. Planting date and harvesting moment of Artemisia absinthium L.
Carlos A Rodríguez Ferradá,Isabel Hechevarría Sosa,Víctor Fuentes Fiallo
Revista Cubana de Plantas Medicinales , 2004,
Abstract: En la Estación Experimental de Plantas Medicinales "Dr. Juan T. Roig" y sobre un suelo ferralítico rojo hidratado se establecieron 8 plantaciones de Artemisia absinthium L. entre enero y agosto (una mensual) en los a os 1999 y 2000, empleando plántulas obtenidas in vitro. El marco de plantación fue de 2 hileras por cantero (30 cm entre hileras) con distancia entre plantas de 40 cm. Los canteros se distribuyeron mediante un dise o de bloques al azar, con 3 réplicas para cada tratamiento. Se realizaron 2 cosechas en cada tratamiento y a o, con una altura de corte de 40 cm y se emplearon 2 fechas de inicio de cosecha: a los 5 y 6 meses después de establecida la plantación. Las segundas cosechas se realizaron también a los mismos intervalos de tiempo. Se evaluaron los rendimientos de follaje, la altura y el número de ramas en plantas. Los datos se procesaron con el empleo de un análisis de varianza de clasificación doble. Las medias se compararon mediante la prueba de Rangos Múltiples de Duncan. Los resultados demostraron que las plantaciones deben realizarse en enero, que es cuando se obtienen los mayores rendimientos de material vegetal y recoger las cosechas a los 5 meses de edad. 8 plantations of Artemisia absinthium L were established in a ferrolitic red hydrated soil at "Dr. Juan Tomás Roig" Experimental Station of Medicinal Plants from January to August (one a month) in 1999 and 2000 by using plantules obtained in vitro.The plantation frame was of 2 rows by bed (30 cm between rows) with a distance of 40 cm between plants. The beds were distributed by a randomized block design with 3 replicas for every treatment. Two harvests were made in each treatment and year, with a cutting height of 40 cm . Two dates were used for the beginning of the harvest at 5 and 6 months after the plantation was established. The second harvests were also carried out at the same time intervals. The foliage yieldings, the height and the number of branches in plants were evaluated. Data were processed by using a double classification variance analysis. The means were compared by using Duncan's Multiples Ranges Test. The results showed that it should be planted in January, when the highest yieldings of plant material are obtained, and that it should be harvested at 5 months of age.
Determinación de la fecha de siembra y del método de plantación de Artemisia annua L. introducida en Cuba
Acosta de la Luz,Lérida; Rodríguez Ferradá,Carlos; Hechevarría Sosa,Isabel;
Revista Cubana de Plantas Medicinales , 2010,
Abstract: introduction: artemisa annua l. is a vietnam and china-original species of medicinal interest for the anti-paludism drugs begin necessary to establish the culture conditions in cuba. objective: to establish some fundamental agricultural parameters for a. annua culture. methods: we used the sowing method and the plantation date establishing seedbeds from december, 2006 to may, 2007; subsequently at 2 months of sowing, saplings were transplanted to plots of 1 m wide and 60 cm of distance among the plants, equivalent to 6 and 9 plants/m2 respectively. to assess the better variants the plants were harvested 4 months after transplantation, that is, at 6 months old; analyzed parameters included the height achieved at the moment of harvest and the fresh foliage yield. results: we obtained only those seedbeds processed from december to february with a good germination during a period of 10 days. regards the growth and the yield, we determined that the great values were observed en plants cultured in december and january and where three rows of plants/plots were placed. conclusions: this species of a. annua introduced in cuba and adapted to vietnamese tropical environment, under conditions where studies were conducted, supplied a big seedbeds adaptation when they are established between december and january, as well as a strong growth and yield of the biomass suitable when seedbeds are transplanted to plots under sunlight, with a population density of approximately 9 plants/m2 allowing its harvest during the vegetative stage at 6 months age with high foliage yields.
Influencia de las condiciones de cultivo y del momento óptimo de cosecha en Artemisia annua L.
Acosta de la Luz,Lérida; Hechevarría Sosa,Isabel; Rodríguez Ferradá,Carlos;
Revista Cubana de Plantas Medicinales , 2011,
Abstract: introduction: artemisia annua l. is medicinal plant of great interest, and therefore it is important to specify exactly the agricultural elements supporting its proper growing. objectives: to determine the influence of growing this plant in the sun and in the shade and of harvesting at different hours and plant ages in the production of biomass and active principles. methods: flowerbeds were placed in the sun and in dimmed light conditions in order to study the growing conditions. in the research conducted at the time of harvest, plants grown in the sun, of 6 months of age and at various day hours: 9:00 a.m. at 26 oc; 11:00 a.m. at 30 oc; 1:00 p.m. at 32 oc, and 3:00 p.m. at 33 oc were harvested. in the other experiment, the harvest of the aerial parts of the plants coming from seedbeds created on november 5th and on december 8th and aged 5, 6 and 7 months was evaluated. the production of biomass, the content of artemisinin and additionally that of the essential oil and camphor were assessed. the extraction of the essential oil using hydrodistillation and that of artemisinin and the camphor by gas chromatography, the detection of the these two components was made by thin-layer chromatography and also the pharmacognostic parameters such as water- and alcohol-soluble substances were evaluated. results: there were little differences in aerial parts yielding in the two growing methods but there was high content of artemisinin, essential oil and camphor in plants grown in the sun. the better time interval for harvest is the morning, when there are higher values of essential oil; regarding harvesting age the 6 month was the most convenient since there was higher proportion of branches and leaves and less old stems, with little differences among the dates of growing and the highest percentages of essential oil and soluble substances. conclusions: the results obtained allow recommending that the plant be grown in the sun at the beginning of the november-december period and
Estudios preliminares para el establecimiento del cultivo de Tagetes lucida Cav.
Acosta de la Luz,Lérida; Hechevarría Sosa,Isabel; Rodríguez Ferradá,Carlos;
Revista Cubana de Plantas Medicinales , 2010,
Abstract: introduction: tagetes lucida cav. has been cultured in cuba in gardens due to the beauty of its foliage, but to exploitation for medicinal aims it is necessary to establish its culture. objective: to determine before the fundamental agricultural parameters together with the necessary information to direct the experiment supplying the introduction to t. lucida culture. methods: authors used the species spreading by sexual multiplication and asexual by stakes, the establishing of the stretch with pegs and the percentage of rooted stakes, as well as the processes relative to culture: determination of 1 m wide planting in plots, to place 2 and 3 plant rows and a 30 and 40 cm distance among them; the assessment of the better variants was carrying out by results obtained in two foliage harvests. in parallel we made another preliminary experiment related to the distance among plants, where the rooted stakes were placed in two rows and the distance was of 30 and 50 cm among plants assessing 6 foliage harvests. results: under our conditions, seeds no germinate; multiplication of t. lucida must be carried out by terminal buds stakes obtained from young branches from the prior pruned selected mother plants achieving high percentages of rooted stakes that my be cultured in broad daylight during 25 to 30 days. its culture by means of three row plantation by plots separated 30 cm was the better method and authors determined that in the second harvest yields are duplicate and remain increasing until the sixth harvest, where values decrease and the plants have a high ratio of lignified sprouts, suggesting the need of a low pruning looking for new buds or to eliminate the plantation, a feature that will be subsequently studied. conclusions: these results are the basis for latter experiments to determine the agro-technology of this species due to its medicinal properties.
Estudios preliminares para el establecimiento del cultivo de Tagetes lucida Cav. Preliminary studies for Tagetes lucida Cav. culture establishment
Lérida Acosta de la Luz,Isabel Hechevarría Sosa,Carlos Rodríguez Ferradá
Revista Cubana de Plantas Medicinales , 2010,
Abstract: INTRODUCCCIóN: Tagetes lucida Cav. se ha cultivado en Cuba en jardines por la belleza de su follaje, pero para su explotación con fines medicinales se requiere establecer su cultivo. OBJETIVO: determinar preliminarmente los parámetros agrícolas fundamentales que brinden la información necesaria para orientar los experimentos que proporcionen la introducción al cultivo de T. lucida. MéTODOS: propagación de la especie mediante multiplicación sexual y asexual por estacas, establecimiento de los estaquilleros y porcentaje de estacas enraizadas, así como los relativos al cultivo: determinación del método de plantación en canteros de un 1 m de ancho, colocar 2 y 3 hileras de plantas y distanciamiento entre ellas de 30 y 40 cm; la evaluación de las mejores variantes se realizó mediante los resultados obtenidos en 2 cosechas de follaje. Se llevó paralelamente otro experimento preliminar relacionado con la distancia entre plantas, donde las estacas enraizadas se colocaron en 2 hileras y el distanciamiento fue de 30 y 50 cm entre plantas y se evaluaron 6 recolecciones de follaje. RESULTADOS: las semillas no germinaron, bajo nuestras condiciones, la multiplicación de T. lucida se debe efectuar mediante estacas de yemas terminales obtenidas de ramas jóvenes de plantas madres seleccionadas que han sido podadas con anterioridad, con lo que se logran altos porcentajes de estacas enraizadas y que puedan llevarse a cultivo a pleno sol, en un período de 25 a 30 d. Su cultivo mediante la plantación de 3 hileras de plantas por canteros con distanciamiento entre ellas de 30 cm, resultó la más adecuada, se determinó que en la segunda cosecha se duplican los rendimientos y que continúan incrementándose hasta la sexta recolección, donde los valores comienzan a disminuir y las plantas aparecen con alta proporción de tallos lignificados, lo que sugiere se haga una poda baja buscando obtener nuevos brotes o eliminar la plantación, aspecto que será estudiado ulteriormente. CONCLUSIONES: estos resultados sirven de base para los experimentos posteriores con vista a determinar la agrotecnología de esta especie de interés por sus propiedades medicinales. INTRODUCTION: Tagetes lucida Cav. has been cultured in Cuba in gardens due to the beauty of its foliage, but to exploitation for medicinal aims it is necessary to establish its culture. OBJECTIVE: to determine before the fundamental agricultural parameters together with the necessary information to direct the experiment supplying the introduction to T. lucida culture. METHODS: authors used the species spreading by sexual multiplication
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