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Caracterización fenotípica de germoplasma de arroz (Oryza sativa L) por su respuesta bajo condiciones inducidas de subemergencia

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dc.contributor.advisorPachón García, Jorge
dc.contributor.advisorGarcía Baquero, Eliud
dc.contributor.advisorVillalba Rey, Deicy
dc.contributor.authorSánchez Lozano, Karla Mindrey
dc.date.accessioned2023-04-25T13:40:11Z
dc.date.available2023-04-25T13:40:11Z
dc.date.issued2022
dc.descriptionFigurasspa
dc.descriptionTablasspa
dc.description.abstractLas inundaciones prolongadas junto con las variaciones climáticas y el deficiente drenaje de los suelos, generan condiciones de subemergencia que producen bajos porcentajes de germinación y un mal establecimiento de plantas en los cultivos de arroz. Por tal motivo y teniendo en cuenta que las variedades comerciales en Colombia no cuentan con tolerancia a inundaciones, se propuso determinar la respuesta a subemergencia en un panel de 120 genotipos pertenecientes a la colección de parentales del programa nacional de mejoramiento de arroz, en estados iniciales de desarrollo fenológico, mediante la evaluación de rasgos fenotípicos asociados con la tolerancia. Los genotipos mostraron diferencias significativas de supervivencia durante la germinación y el desarrollo vegetativo temprano en respuesta al estrés por inundación. Se identificaron tres genotipos (F 83, F-24, F-313) con tolerancia intermedia a la germinación anaerobia con porcentajes de supervivencia que variaron entre el 75,7% y el 76,7%. Adicional a esto, se identificó un genotipo (F-377) con tolerancia intermedia a la subemergencia durante el desarrollo vegetativo V4, el cual mostró un crecimiento limitado de brotes bajo el agua y una mejor recuperación en comparación a los genotipos susceptibles. Los genotipos identificados pueden considerarse fuentes promisorias de tolerancia a la inundación durante los estados iniciales del desarrollo fenológico para los programas de mejoramiento genético.spa
dc.description.degreelevelPregradospa
dc.description.degreenameBiólogospa
dc.description.programBiologíaspa
dc.description.tableofcontentsInforme Final. – Resumen. -- 7 3. Lista Figuras. -- 8 4. Lista Tablas. -- 5. Lista Símbolos Y Abreviaturas. -- 6. Planteamiento Del Problema. -- 7. Hipótesis. -- 8. Objetivos. -- 8.1. Objetivo General. -- 8.2. Objetivos Específicos. -- 9. Justificación. -- 10. Marco De Referencia, Teórico O Conceptual. -- 10.1. Generalidades Del Arroz. -- 10.2. La Subemergencia En El Arroz. -- 10.2.1. Efecto De Las Inundaciones En El Desarrollo De La Planta De Arroz. -- 10.2.2. Tolerancia Durante La Germinación Anaerobia (Ag). - - 10.2.3. Tolerancia A La Subemergencia Durante La Etapa Vegetativa. -- 11. Metodología. -- 11.1. Área De Estudio. -- 11.2. Caracterización Fenotípica De Los Genotipos De Arroz. -- 11.2.1. Selección De Los Materiales. -- 11.2.2. Detección De La Tolerancia A La Germinación Anaerobia (Ag). -- 11.2.3. Detección De La Tolerancia A La Subemergencia En El Desarrollo Vegetativo V4.... 31 11.3 Análisis Estadístico. -- 12. Resultados. -- 12.1. Comportamiento De Los Genotipos Durante La Germinación Anaerobia. -- 12.1.2. Supervivencia De Los Genotipos. -- 12.1.3. Altura De La Plántula. -- 12.2. Comportamiento De Los Genotipos Durante Su Desarrollo Temprano Vegetativo. -- 12.2.1 Supervivencia De Los Genotipos E Índice De Crecimiento Relativo (Rgi). -- 12.2.2. Efecto De La Subemergencia En El Crecimiento De La Planta. -- 12.2.3. Análisis De Clúster Por K- Medias Y Jerárquico. -- 13. Discusión. -- 13.1. Tolerancia A La Germinación Anaerobia. -- 13.2. Tolerancia A La Subemergencia En Desarrollo Temprano Vegetativo. -- 14. Conclusiones Y Recomendaciones. -- 14.1. Conclusiones. -- 14.2. Recomendaciones. -- 15. Bibliografía. -- 16. Anexos.spa
dc.format.extent121 Páginasspa
dc.format.mimetypeapplication/pdfspa
dc.identifier.citationSanchéz Lozano, Karla M. (2022). Caracterización fenotípica de germoplasma de arroz (Oryza sativa L) por su respuesta bajo condiciones inducidas de subemergencia [Trabajo de grado, Universidad de los Llanos]. Repositorio digital Universidad de los Llanos. https://repositorio.unillanos.edu.co/handle/001/2869spa
dc.identifier.instnameUniversidad de los Llanosspa
dc.identifier.reponameRepositorio digital Universidad de los Llanosspa
dc.identifier.repourlhttps://repositorio.unillanos.edu.co/spa
dc.identifier.urihttps://repositorio.unillanos.edu.co/handle/001/2869
dc.language.isospaspa
dc.publisherUniversidad de los Llanosspa
dc.publisher.facultyFacultad de Ciencias Básicas e Ingenieríaspa
dc.publisher.placeVillavicenciospa
dc.relation.indexedN/Aspa
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dc.rights.coarhttp://purl.org/coar/access_right/c_abf2spa
dc.rights.licenseAtribución-NoComercial-SinDerivadas 4.0 Internacional (CC BY-NC-ND 4.0)spa
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/spa
dc.subject.armarcRecursos agrícolas
dc.subject.armarcCultivo de arroz
dc.subject.armarcDesarrollo vegetativo
dc.subject.armarcCaracterización molecular
dc.subject.proposalInundaciónspa
dc.subject.proposalGerminaciónspa
dc.subject.proposalTolerancia a la subemergenciaspa
dc.subject.proposalDesarrollo fenológicospa
dc.subject.proposalGenotipos tolerantesspa
dc.titleCaracterización fenotípica de germoplasma de arroz (Oryza sativa L) por su respuesta bajo condiciones inducidas de subemergenciaspa
dc.typeTrabajo de grado - Pregradospa
dc.type.coarhttp://purl.org/coar/resource_type/c_7a1fspa
dc.type.coarversionhttp://purl.org/coar/version/c_970fb48d4fbd8a85spa
dc.type.contentTextspa
dc.type.driverinfo:eu-repo/semantics/bachelorThesisspa
dc.type.redcolhttps://purl.org/redcol/resource_type/TPspa
dc.type.versioninfo:eu-repo/semantics/publishedVersionspa
dspace.entity.typePublication

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