Examinando por Materia "Modelos estadísticos"

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    Evaluación de las Características Morfológicas y Niveles de Infección Fúngica Natural en la Germinación de Semillas de Sacha Inchi (Plukenetia Volubilis) Provenientes de Diferentes Regiones de Colombia
    (Bucaramanga : Universidad de Santander, 2018, 2018-06-26) Coronado-Rangel, Nathalia; Pérez-Pulido, Miguel Oswaldo; Acevedo-Isidro, Carlos Augusto; Agualimpia-Valderrama, Bayron Enrique
    A basic factor for modern agriculture is the use of varieties with potential to obtain high yields in grains or fodder. To contribute to this purpose, there are analysis techniques that allow to evaluate the quality of the seeds for the company, which are of interest both for the seed industry and the institutions responsible for the certification, which determine the value of the seeds for profit. of the farmer. In this study, the morphological characteristics and the levels of natural fungal infection in the germination of seeds of Sacha inchi (Plukenetia Volubilis) from different regions of Colombia were evaluated through statistical methods. Initially, the establishment of the morphological variability of the sacha inchi seeds selected from the regions of Santander, Valle, Antioquia, Boyacá and Cesar was determined, determining the size, texture, color, weight and shape, from which a classification of 3 groups defined with 93% correct data through discriminant analysis. Subsequently, the percentage of germination, level of cultivable fungal infection was determined. The germination results were 92% in a global average of the regions and an infection percentage of 95% when the Macrophomina genus had a higher frequency of appearance in all the regions studied. Then, comparisons were made to the germinative capacity according to the region of origin and it was evidenced that the Boyacá region was the slowest to germinate compared to the Santander region that achieved its germination in the first week of the study. It was possible to generate a contribution to the improvement of quality in the selection of sacha seeds according to a characteristic taking into account the different regions evaluated, being a basis for future research related to the morphology and health of the seeds.