Artículos Científicos UNJ
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Examinando Artículos Científicos UNJ por Autor "Garrido Campaña,Zadith Nancy"
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Ítem Comparison of Collinearity Indices for Linear Models in Agricultural Trials(Journal of Biological Sciences, 2023-12-28) Garrido Campaña,Zadith NancyThe deleterious consequences of collinearity in linear regression on the precision of estimators of regression coefficients and the interpretability of the fitted model are widely recognized. In this study, we compare several methodologies for assessing collinearity in linear models and explore the effect of outliers on collinearity. The robustness of collinearity measures (individual and overall) is validated through two detailed Monte Carlo simulation study which also considers the effect of outliers on collinearity indices. The methods are illustrated with two real-world agricultural and fish morphology l data sets to show potential applications. The results do not provide any evidence for an effect from outliers on collinearity identification using the collinearity indices (individual and overall). The FG and Fj collinearity indices more robust as both sample size and collinearity degree increase. The VIF (individual measure) had a better performance on the fitted model with a greater number of parameters.Ítem Evaluation of the Optimal Dose of Gibberellic Acid (Full Gib) in the Induction of Sprouting of Yungay Potato Variety Tuber (Solanum tuberosum L.)(Journal of Biological Sciences, 2024-07-24) Garrido Campaña,Zadith NancyThis research was carried out in the district of Luya, province of Chachapoyas, Amazonas, with the objective of evaluating the optimal dose of gibberellic acid (Full Gib) in the induction of sprouting of potato tubers (Solanum tuberosum L.) Yungay variety. A Completely Randomized Design (CRD) with two factors three replications and seven treatments was used. Minitat 17 statistical software, ANOVA, and the Tukey mean comparison test at 5% were used for data analysis. The treatments were: Nothing was applied (T1), 7.5 mL of Full Gib in 20 L of water, for 15 min (T2), 7.5 mL of Full Gib in 20 L of water, for 20 min (T3), 10 mL of full Gib in 20 L of water, for 15 min (T4), 10 mL of full Gib in 20 L of water, for 20 min (T5), 12. 5 mL of full Gib in 20 L of water, for 15 min (T6), 12.5 mL of full Gib in 20 L of water, for 20 min (T7). The variables evaluated were: Sprouting percentage, number of sprouts, sprout length, and sprout diameter per tuber. According to the results obtained, it can be observed that treatments 5 and 3 obtained the highest germination percentages with 86.17 and 85.67%, respectively, surpassing the other treatments; there were no significant differences between treatments in the number of sprouts per tuber. Treatments 5, 3, and 4 were better, with results of 8.93, 8.83, and 8.68, respectively; on the other hand, the variable shoot length obtained the best results in treatments 5 and 3 with 7.69 and 7.50 cm, respectively. Similarly, the shoot diameter variable had positive results in treatments 3 and 5 with 6.0 and 5.9 mm, respectivelyÍtem Políticas públicas para afrontar sequías en el Perú(Revista de Climatología, 2022-06-29) Garrido Campaña,Zadith NancyEl presente estudio se refirió a las Políticas Públicas para afrontar sequías en el Perú, aludiendo a la Estrategia Nacional de Lucha Contra la Desertificación y la Sequía en el Perú (ENLCDS) por ser un importante instrumento de gestión que promueve la participación y movilización de actores públicos y privados, para ejecutar acciones orientadas a promover el manejo sostenible de la tierra (MST), siendo este artículo de valía porque trae acotación el llamado a las instituciones peruanas responsables de esta problemática a que puedan priorizarlo por ser el Perú uno de los países con mayor extensión de tierras secas en América del Sur, en donde la sequía puede causar mayores consecuencias; describiéndose las sequías meteorológicas en la provincia de Candarave, Departamento de Tacna; Perú.