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dc.contributor.advisorReyes Borja, Walter Oswaldo
dc.contributor.authorBustamante Lucio, Adonis Rafael
dc.date.accessioned2025-05-12T20:58:19Z
dc.date.available2025-05-12T20:58:19Z
dc.date.issued2025
dc.identifier.urihttp://dspace.utb.edu.ec/handle/49000/18346
dc.descriptionThe main purpose of this research was to evaluate the performance of various rice cultivars in the Babahoyo canton, Los Ríos province, in order to select those with the best production and good agronomic characteristics. The experimental design applied in this study was analysis of variance (ANOVA), and the Tukey test was used to compare the means of the evaluated variables (p < 0.05). Euclidean analysis was also used to group cultivars based on genetic similarity. Finally, a frequency analysis was performed, where 81 cultivars were grouped into classes to select the best cultivars, primarily considering yield characteristics (g/plant), number of panicles per plant, and hulled grain length (mm). In all three cases, the "bigger is better" designation was used.The sample consisted of 81 cultivars, each with varying numbers of individuals. The following variables were evaluated: days to flowering, vegetative vigor, plant height (cm), number of tillers per plant, number of panicles per plant, panicle length (cm), total number of grains per panicle, percentage of empty grains per panicle, length (mm) and width (mm) of hulled and unhulled grains; and yield (g/plant).A total of 21 individuals were selected for their best yield from 17 rice cultivars, which presented values between 117.4 and 216.5 g/plant. Twenty-seven individuals with the highest number of panicles were identified from 22 rice cultivars. These 27 selected individuals presented values between 42 and 96 panicles per plant. Thirty-four individuals with the best average hulled grain length from 22 cultivars were selected, presenting values between 7.33 and 8.1 mm.es_ES
dc.descriptionThe main purpose of this research was to evaluate the performance of various rice cultivars in the Babahoyo canton, Los Ríos province, in order to select those with the best production and good agronomic characteristics. The experimental design applied in this study was analysis of variance (ANOVA), and the Tukey test was used to compare the means of the evaluated variables (p < 0.05). Euclidean analysis was also used to group cultivars based on genetic similarity. Finally, a frequency analysis was performed, where 81 cultivars were grouped into classes to select the best cultivars, primarily considering yield characteristics (g/plant), number of panicles per plant, and hulled grain length (mm). In all three cases, the "bigger is better" designation was used.The sample consisted of 81 cultivars, each with varying numbers of individuals. The following variables were evaluated: days to flowering, vegetative vigor, plant height (cm), number of tillers per plant, number of panicles per plant, panicle length (cm), total number of grains per panicle, percentage of empty grains per panicle, length (mm) and width (mm) of hulled and unhulled grains; and yield (g/plant).A total of 21 individuals were selected for their best yield from 17 rice cultivars, which presented values between 117.4 and 216.5 g/plant. Twenty-seven individuals with the highest number of panicles were identified from 22 rice cultivars. These 27 selected individuals presented values between 42 and 96 panicles per plant. Thirty-four individuals with the best average hulled grain length from 22 cultivars were selected, presenting values between 7.33 and 8.1 mm.es_ES
dc.description.abstractEsta investigación tuvo como propósito principal evaluar el desempeño de diversos cultivares de arroz en el cantón Babahoyo, provincia de Los Ríos, para seleccionar aquellos que tengan mejor producción y buenas características agronómicas. El diseño experimental que se aplicó en este estudio fue el análisis de varianza (ANOVA) y para la comparación de medias de las variables evaluadas se utilizó la prueba de Tukey (p<0,05). Igualmente, se utilizó el análisis Euclídeo para agrupar los cultivares de similitud genética. Finalmente se realizó un análisis de frecuencia, donde 81 cultivares fueron agrupados en clases para realizar la selección de los mejores cultivares, considerando principalmente las características de rendimiento (g/planta), número de panículas por planta y longitud (mm) de grano sin cáscara, que en los tres casos se utilizó la denominación “Mayor es mejor”. La muestra estuvo conformada por 81 cultivares en los cuales sus individuos variaron en su número. Se evaluaron las siguientes variables: Días de floración, Vigor vegetativo, Altura de planta (cm), Número de macollos por planta, Número de panícula por planta, Longitud de panícula (cm), Número de granos totales por panícula, Porcentaje de granos vanos por panícula, Longitud (mm) y ancho (mm) de grano con cáscara y sin cáscara; y, Rendimiento (g/planta).Un total de 21 individuos fueron seleccionados por su mejor rendimiento provenientes de 17 cultivares de arroz que presentaron valores de entre 117,4 y 216,5 g/planta. Se identificaron 27 individuos con mayor número de panículas, provenientes de 22 cultivares de arroz. Estos 27 individuos seleccionados, presentaron valores de entre 42 a 96 panículas por planta. 34 individuos con los mejores promedios de Longitud de grano sin cáscara provenientes de 22 cultivares fueron seleccionados, presentando valores de entre 7,33 y 8,1 mm.es_ES
dc.format.extent105es_ES
dc.language.isoeses_ES
dc.publisherBABAHOYO: UTB, 2025es_ES
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/us/*
dc.subjectArrozes_ES
dc.subjectCaracterísticas morfo-agronómicases_ES
dc.subjectCultivareses_ES
dc.subjectRendimientoes_ES
dc.titleIdentificación morfo-agronómica y rendimiento en cultivares de arroz (Oryza sativa L.) en el cantón Babahoyo - provincia de Los Ríos.es_ES
dc.typebachelorThesises_ES


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