Efecto de dos fuentes de luz LED DR/W y blanca en parámetros fisiológicos y de rendimiento en tres variedades de Cannabis sativa L. bajo condiciones de invernadero en la Sabana de Bogotá

ilustraciones, diagramas

Autores:: Carranza Ramirez, Julian Eduardo

Tipo de recurso:

Fecha de publicación:: 2023

Institución:: Universidad Nacional de Colombia

Repositorio:: Universidad Nacional de Colombia

Idioma:: spa

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network_acronym_str	UNACIONAL2
network_name_str	Universidad Nacional de Colombia
repository_id_str
dc.title.spa.fl_str_mv	Efecto de dos fuentes de luz LED DR/W y blanca en parámetros fisiológicos y de rendimiento en tres variedades de Cannabis sativa L. bajo condiciones de invernadero en la Sabana de Bogotá
dc.title.translated.eng.fl_str_mv	Effect of two LED light sources DR/W and White on physiological and yield parameters in three varieties of Cannabis sativa L. under greenhouse conditions in the Bogotá Savanna
title	Efecto de dos fuentes de luz LED DR/W y blanca en parámetros fisiológicos y de rendimiento en tres variedades de Cannabis sativa L. bajo condiciones de invernadero en la Sabana de Bogotá
spellingShingle	Efecto de dos fuentes de luz LED DR/W y blanca en parámetros fisiológicos y de rendimiento en tres variedades de Cannabis sativa L. bajo condiciones de invernadero en la Sabana de Bogotá 630 - Agricultura y tecnologías relacionadas::631 - Técnicas específicas, aparatos, equipos, materiales Cultivos de invernadero Fisiología vegetal Estímulos de luz Cannabis sativa greenhouse crops plant physiology light stimuli Cannabis sativa Arquitectura del dosel Desempeño fotosintético Cannabinoides Acumulación de biomasa Luz Light Canopy architecture Biomass accumulation Inflorescences Photosynthetic performance Cannabinoids
title_short	Efecto de dos fuentes de luz LED DR/W y blanca en parámetros fisiológicos y de rendimiento en tres variedades de Cannabis sativa L. bajo condiciones de invernadero en la Sabana de Bogotá
title_full	Efecto de dos fuentes de luz LED DR/W y blanca en parámetros fisiológicos y de rendimiento en tres variedades de Cannabis sativa L. bajo condiciones de invernadero en la Sabana de Bogotá
title_fullStr	Efecto de dos fuentes de luz LED DR/W y blanca en parámetros fisiológicos y de rendimiento en tres variedades de Cannabis sativa L. bajo condiciones de invernadero en la Sabana de Bogotá
title_full_unstemmed	Efecto de dos fuentes de luz LED DR/W y blanca en parámetros fisiológicos y de rendimiento en tres variedades de Cannabis sativa L. bajo condiciones de invernadero en la Sabana de Bogotá
title_sort	Efecto de dos fuentes de luz LED DR/W y blanca en parámetros fisiológicos y de rendimiento en tres variedades de Cannabis sativa L. bajo condiciones de invernadero en la Sabana de Bogotá
dc.creator.fl_str_mv	Carranza Ramirez, Julian Eduardo
dc.contributor.advisor.spa.fl_str_mv	Moreno Fonseca, Liz Patricia Borda Gutiérrez, Ana María
dc.contributor.author.spa.fl_str_mv	Carranza Ramirez, Julian Eduardo
dc.contributor.orcid.spa.fl_str_mv	0000-0002-6091-5750
dc.subject.ddc.spa.fl_str_mv	630 - Agricultura y tecnologías relacionadas::631 - Técnicas específicas, aparatos, equipos, materiales
topic	630 - Agricultura y tecnologías relacionadas::631 - Técnicas específicas, aparatos, equipos, materiales Cultivos de invernadero Fisiología vegetal Estímulos de luz Cannabis sativa greenhouse crops plant physiology light stimuli Cannabis sativa Arquitectura del dosel Desempeño fotosintético Cannabinoides Acumulación de biomasa Luz Light Canopy architecture Biomass accumulation Inflorescences Photosynthetic performance Cannabinoids
dc.subject.agrovoc.spa.fl_str_mv	Cultivos de invernadero Fisiología vegetal Estímulos de luz Cannabis sativa
dc.subject.agrovoc.eng.fl_str_mv	greenhouse crops plant physiology light stimuli Cannabis sativa
dc.subject.proposal.spa.fl_str_mv	Arquitectura del dosel Desempeño fotosintético Cannabinoides Acumulación de biomasa Luz
dc.subject.proposal.eng.fl_str_mv	Light Canopy architecture Biomass accumulation Inflorescences Photosynthetic performance Cannabinoids
description	ilustraciones, diagramas
publishDate	2023
dc.date.issued.none.fl_str_mv	2023-08-01
dc.date.accessioned.none.fl_str_mv	2024-06-07T20:09:25Z
dc.date.available.none.fl_str_mv	2024-06-07T20:09:25Z
dc.type.spa.fl_str_mv	Trabajo de grado - Maestría
dc.type.driver.spa.fl_str_mv	info:eu-repo/semantics/masterThesis
dc.type.version.spa.fl_str_mv	info:eu-repo/semantics/acceptedVersion
dc.type.content.spa.fl_str_mv	Text
dc.type.redcol.spa.fl_str_mv	http://purl.org/redcol/resource_type/TM
status_str	acceptedVersion
dc.identifier.uri.none.fl_str_mv	https://repositorio.unal.edu.co/handle/unal/86217
dc.identifier.instname.spa.fl_str_mv	Universidad Nacional de Colombia
dc.identifier.reponame.spa.fl_str_mv	Repositorio Institucional Universidad Nacional de Colombia
dc.identifier.repourl.spa.fl_str_mv	https://repositorio.unal.edu.co/
url	https://repositorio.unal.edu.co/handle/unal/86217 https://repositorio.unal.edu.co/
identifier_str_mv	Universidad Nacional de Colombia Repositorio Institucional Universidad Nacional de Colombia
dc.language.iso.spa.fl_str_mv	spa
language	spa
dc.relation.indexed.spa.fl_str_mv	Agrosavia Agrovoc
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spelling	Reconocimiento 4.0 Internacionalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Moreno Fonseca, Liz Patricia07ee1081b544cf793515ad81a24c6bba600Borda Gutiérrez, Ana Maríaa737b7695422ac0ef4af6ef7da0478acCarranza Ramirez, Julian Eduardo944566c7ad68b4f317130de54ce350b16000000-0002-6091-57502024-06-07T20:09:25Z2024-06-07T20:09:25Z2023-08-01https://repositorio.unal.edu.co/handle/unal/86217Universidad Nacional de ColombiaRepositorio Institucional Universidad Nacional de Colombiahttps://repositorio.unal.edu.co/ilustraciones, diagramasLa variación en la síntesis de los cannabinoides que se producen en las inflorescencias de la planta de Cannabis sativa L. puede afectar su potencia medicinal. Esta variación se debe a que su producción está regulada por factores ambientales, entre de los cuales uno de los más importantes es la luz. El objetivo de este estudio fue determinar el efecto de dos fuentes de luz sobre parámetros fisiológicos y de rendimiento de tres variedades de C. sativa en condiciones de invernadero. Se utilizaron las variedades no psicoactivas Calotoweed, Higthcol y Souce Cauca, las cuales fueron sembradas bajo luz LED DR/W y luz LED blanca durante la fase vegetativa. No se observó un efecto del tipo de luces en la fenología de las plantas de C. sativa. Sin embargo, bajo luz DR/W se presentó una reducción significativa en la altura (4%-26,7%), el área foliar (21%-55%) y en la masa seca de la parte aérea (1,9%-30,3%), aunque, se observó una mayor distribución de la biomasa hacia las inflorescencias (40,1%-51,6%). También, se observó una reducción significativa en la conductancia estomática (4,7%-27,4%), la eficiencia cuántica del PSII (1%-11,7%) y la tasa de transporte de electrones (9,2%-15,8%) respecto a la luz blanca. En cuanto al rendimiento en términos de flor seca no se observaron diferencias significativas entre el tipo de luces y entre variedades. Por el contrario, bajo luz blanca se presentaron los mayores contenidos de CBD (11,9%-13,4%) y de CBD por gramo de inflorescencia (12,9 CBD g/inflorescencia – 13,8 CBD g/inflorescencia) respecto a la luz DR/W. Por otro lado, bajo luz DR/W se presentaron las mayores concentraciones de THC para las variedades Calotoweed (0,5%) y Soucecauca (0,6%) en comparación con las plantas que crecieron bajo luz blanca. Estos resultados indican que la luz DR/W modificó la arquitectura del dosel, generando plantas más compactas con mayor acumulación de biomasa en la inflorescencia que es donde se produce los metabolitos de interés. En conclusión, las plantas bajo luz DR/W presentaron una mayor translocación de fotoasimilados hacia las inflorescencias, pero hubo una limitación en el desempeño fotosintético, lo que disminuyó la producción de CBD e incrementó la producción de THC. (Texto tomado de la fuente).The variation in cannabinoid synthesis occurring in the inflorescences of Cannabis sativa L. can impact its medicinal potency. This variation is attributed to the regulation of production by environmental factors, with light being one of the most crucial among them. The objective of this study was to determine the effect of two light sources on physiological and yield parameters of three C. sativa varieties under greenhouse conditions. The non-psychotropic varieties Calotoweed, Higthcol, and Souce Cauca were cultivated during the vegetative phase under DR/W LED light and white LED light. No significant effect of light type on the phenology of C. sativa plants was observed. However, under DR/W light, there was a reduction in plant height (4%-26.7%), leaf area (21%-55%), and aerial dry mass (1.9%-30.3%), while there was an increased biomass allocation towards the inflorescences (40.1%-51.6%). Additionally, a decrease in stomatal conductance (4.7%-27.4%), quantum efficiency of PSII (1%-11.7%), and electron transport rate (9.2%-15.8%) was observed compared to white light. Regarding the yield in terms of dry flowers, no significant differences were found between light types or varieties. Conversely, under white light, the highest CBD contents (11.9%-13.4%) and CBD per gram of inflorescence (12.9 CBD g inflorescence-1 – 13.8 CBD g inflorescence-1) were observed compared to DR/W light. On the other hand, the highest THC concentrations were found for the Calotoweed (0.5%) and Soucecauca (0.6%) varieties under DR/W light compared to plants grown under white light. These results indicate that DR/W light altered the canopy architecture, resulting in more compact plants with greater biomass accumulation in the inflorescence, where the targeted metabolites are produced. In conclusion, plants under DR/W light exhibited increased translocation of photoassimilates towards the inflorescences, but there was a limitation in photosynthetic performance, leading to decreased CBD production and increased THC production.Medcolcanna is a medical cannabis company operating in ColombiaMaestríaMagíster en Ciencias AgrariasMaterial vegetal y establecimiento del cultivo El estudio se realizó en la Finca El Candil, La Conejera, Bogotá, Colombia (4°47'02.6"N 74°06'09.8"W) en invernadero, con una temperatura promedio de 16,7°C, humedad relativa del 75,4 %, integral de luz diaria (DLI) promedio de 16,7 Mol m-2 dia-1. Las plántulas se obtuvieron a partir de esquejes enraizados de cuatro semanas de edad y se utilizó una densidad de siembra de 4 plantas m-2. Las plantas se sembraron en suelo y se aplicó un plan de fertilización acorde con el análisis de suelo y los requerimientos de la planta según Cockson et al., (2019) con algunas modificaciones. El riego, las podas y los manejos fitosanitarios se realizaron de la manera convencional para cultivos de C. sativa en invernadero. Se realizó un diseño en parcelas divididas con bloques completos al azar con cinco repeticiones y una unidad experimental de 25 plantas. La parcela principal fue: dos fuentes de luz LED, una blanca (48 bombillas de 30 Watts, con un espectro de luz de 6500 k) y una luz blanca/roja profundo (48 bombillas de 13 Watts, con un espectro de luz Deep Red/White, una alta proporción de rojo y una menor relación Azul:Rojo) y como subparcela: tres variedades de Cannabis sativa L. medicinal: Calotoweed (CW), Higthcol (HC) y Souce Cauca (SC). Los ensayos con cada fuente de luz fueron separados con cortinas plásticas de color negro, para evitar la contaminación lumínica. Las luces dentro del invernadero se encendieron desde las 18:00 h hasta las 0:30 h, con el fin de obtener un fotoperiodo de 18/6 h luz/oscuridad durante la fase vegetativa (desde la siembra hasta los 43 días), una vez transcurrido ese tiempo se apagaron las luces para obtener un fotoperiodo de 12/12 h luz/oscuridad. Las fuentes de luz fueron colocadas a una altura de 2,40 m, espaciadas cada 3 m. Las mediciones de todas las variables fisiológicas se realizaron para un total de 15 plantas por tratamiento (n=15) en tres puntos a lo largo del ciclo del cultivo, a los 20 días después de siembra (dds), 60 dds y 95 dds, excepto para la altura de la planta que se hizo a los 20 dds, 35 dds, 50 dds, 65 dds y 95 dds. Fenología Se midió la fenología a partir de los 8 días después de trasplante (ddt) y hasta el final del ciclo de cultivo se determinó semanalmente la fenología (n=25), con base en la escala propuesta por Mediavilla et al. (1998) con modificaciones. Cada estado fenológico se determinó cuando el 50%+1 de la población se encontraba en el estado de desarrollo específico. Variables de crecimiento Se midió la altura de la planta desde la base del tallo hasta la parte apical del mismo. El área foliar se determinó en 15 plantas por tratamiento usando el sofware ImageJ® (Sala et al., 2015). A partir del área foliar se determinó el área foliar específica (AFE) utilizando la siguiente ecuación (1). (1) = Á (2)/ () Se determinó la masa seca de la parte aérea, para tal fin ésta se separó en tallo, ramas laterales, hojas y flores, cada parte fue colocada en un horno a 105 °C hasta obtener peso constante. Variables asociadas a la fotosíntesis El contenido relativo de clorofilas (CRC) se determinó con un clorofilómetro SPAD-502 plus (Konica Minolta, Osaka, Japan) en una hoja totalmente expandida del tercio superior de la planta, tomando cinco mediciones en el foliolo central en la parte media (n= 15). La conductancia estomática (gs) se determinó con un porómetro de hoja Decagon SC-1 (Decagon Devices, Inc., Pullman, Washington). Se determinó la temperatura foliar con un psicómetro extech con termómetro infrarrojo modelo HD500. En la misma hoja donde se determinó la temperatura foliar y la gs se determinaron las variables asociadas a la fluorescencia de la clorofila, entre las 9:00 h y las 11:00 h, mediante un analizador de fluorescencia de amplitud de pulso modulado (JUNIOR-PAM, Walz, Germany). Las hojas fueron adaptadas a la oscuridad por 30 min antes de iniciar las mediciones, después las moléculas de clorofila fueron excitadas por 0,8 s con un PPFD de 2000 μmol m-2 s-1 usando luz actínica. Con este proceso de obtuvo los datos de la tasa de transporte de electrones del PSII (ETR) y el rendimiento cuántico máximo potencial del PSII (Fv/Fm) (n = 15). Para estas variables se realizaron seis mediciones durante el ciclo de cultivo. Rendimiento de masa seca de flor El rendimiento se determinó en quince plantas por repetición por tratamiento (n=75). El momento de cosecha se estableció cuando los pistilos de la inflorescencia apical del 50%+1 de la población presentaron color café y el 30% de los tricomas fueron de color ámbar. Para cada planta se cortaron las ramas productivas y se llevaron a un cuarto de secado. Cuando las ramas productivas presentaron un porcentaje de humedad del 9% se realizó el triturado para determinar el rendimiento mediante el peso de flor seca por planta. Contenido total de cannabinoides El contenido de cannabinoides se determinó a partir de 30 g de inflorescencias al momento de la cosecha, en tres plantas por variedad por repetición por tratamiento. Las inflorescencias se colocaron en un horno a 50°C hasta alcanzar una humedad entre el 8% al 10%, luego fueron molidas y se determinó el contenido de cannabidiol (CBD) y del Δ9 tetrahidrocannabinol (THC) con un analizador de potencias GemmaCert Lite (GemmaCert, Germany). El contenido se expresa como porcentaje (%) de peso seco total de las inflorescencias. Análisis de datos El análisis estadístico se realizó con el software R (R Core Team, 2013). Las comparaciones estadísticas entre los tratamientos se realizaron mediante un análisis de medidas repetidas y mediante un análisis de varianza (ANOVA) de tres vías para las variables medidas a través del tiempo para determinar el efecto combinado de las luces:variedad:tiempo. Para la interpretación y discusión de las interacciones se utilizó el criterio de las barras de error estándar descrito por Cumming et al. (2007). Finalmente, para las variables de rendimiento en términos de flor seca y el contenido total de cannabinoides se realizó un ANOVA de una vía. Para la comparación de medias se realizó la prueba de Tukey (p < 0,05).Fisiologia de cultivos85 páginasapplication/pdfspaUniversidad Nacional de ColombiaBogotá - Ciencias Agrarias - Maestría en Ciencias AgrariasFacultad de Ciencias AgrariasBogotá, ColombiaUniversidad Nacional de Colombia - Sede Bogotá630 - Agricultura y tecnologías relacionadas::631 - Técnicas específicas, aparatos, equipos, materialesCultivos de invernaderoFisiología vegetalEstímulos de luzCannabis sativagreenhouse cropsplant physiologylight stimuliCannabis sativaArquitectura del doselDesempeño fotosintéticoCannabinoidesAcumulación de biomasaLuzLightCanopy architectureBiomass accumulationInflorescencesPhotosynthetic performanceCannabinoidsEfecto de dos fuentes de luz LED DR/W y blanca en parámetros fisiológicos y de rendimiento en tres variedades de Cannabis sativa L. bajo condiciones de invernadero en la Sabana de BogotáEffect of two LED light sources DR/W and White on physiological and yield parameters in three varieties of Cannabis sativa L. under greenhouse conditions in the Bogotá SavannaTrabajo de grado - Maestríainfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/acceptedVersionTexthttp://purl.org/redcol/resource_type/TMBogotáColombiaCundinamarcahttp://vocab.getty.edu/page/tgn/1000838AgrosaviaAgrovocAizpurua-Olaizola, O., Omar, J., Navarro, P., Olivares, M., Etxebarria, N., Usobiaga, A. 2014. 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Journal of Plant Growth Regulation, 36(1), 148–160. doi:10.1007/s00344-016-9625-y.MedcolcannaEstudiantesInvestigadoresPúblico generalORIGINAL1.015.439.557.2023.pdf1.015.439.557.2023.pdfTesis de Maestría en Ciencias Agrariasapplication/pdf1475096https://repositorio.unal.edu.co/bitstream/unal/86217/2/1.015.439.557.2023.pdfbe3ab6ca08e84ef711a4e6208999d1abMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-85879https://repositorio.unal.edu.co/bitstream/unal/86217/1/license.txteb34b1cf90b7e1103fc9dfd26be24b4aMD51THUMBNAIL1.015.439.557.2023.pdf.jpg1.015.439.557.2023.pdf.jpgGenerated Thumbnailimage/jpeg5600https://repositorio.unal.edu.co/bitstream/unal/86217/3/1.015.439.557.2023.pdf.jpg4063a7737bda31d148ca23b34b9a95e1MD53unal/86217oai:repositorio.unal.edu.co:unal/862172024-08-25 23:11:21.313Repositorio Institucional Universidad Nacional de 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Efecto de dos fuentes de luz LED DR/W y blanca en parámetros fisiológicos y de rendimiento en tres variedades de Cannabis sativa L. bajo condiciones de invernadero en la Sabana de Bogotá

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