Ciencias Agropecuarias
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Item Evaluación de promotores de crecimiento en el cultivo de lechuga (Lactuca sativa)(2023-09) Villacrés Pabón, Bryan Andrés; Pallo Paredes, Edwin LeonardoLettuce (Lactuca sativa) is an economically important crop in the province of Tungurahua, mainly in the parishes of Izamba and Cunchibamba. This study was conducted with the purpose of evaluating different products and doses, used as growth promoters in the lettuce crop, the Starfigther variety was implemented, which is characterized by being a good option for fresh green leaves, being easy to grow and can be consume in salads, promising to meet the needs of small producers for such a reason that its performance is directly influenced. An experimental design of Randomized Complete Blocks with nine treatments plus a control was used. The results showed that the use of the Algalig product resulted in the highest values of root volume. However, no statistically significant differences were found regarding the number of leaves and dry weights between the different treatments. The crop cycle, which spanned from the date of transplantation to harvest, lasted 45 days in all treatments. In conclusion, the use of growth promoting products showed favorable changes in the crop, which translated into an increase in its productivityItem Evaluación de diferentes proporciones de sustratos en el crecimiento de plántulas de uvilla (Physalis peruviana)(2022-09) Toscano Mañay, Jessica Alexandra; Dobronski Arcos, Jorge EnriqueSubstrates are of great importance to achieve a good development of seedlings, because they allow them to develop a good root system in order to obtain a better quality. The cape gooseberry (Physalis peruviana) is a fruit species from the Andean territory that is considered a wild fruit, since its seeds are more easily propagated. In the present work, the effect of different proportions of substrate on the development of cape gooseberry seedlings was evaluated in order to determine the treatment that would allow obtaining better quality plants with desirable characteristics. Six treatments were evaluated: T1 (agricultural dream 100%), T2 (agricultural soil 50% + guinea pig manure 50%), T3 (agricultural soil 40% + sawdust 20% + rock flour 40%), T4 (sand 50% + rock flour 30% + sawdust 20%), T5 (agricultural soil 70% + sawdust 30%) and T6 (agriculturalsoil 70% + rock flour 30%). A completely randomized block experimental design with three replications was used. The variables evaluated were plant height, number of leaves, stem diameter, root length and percentage of useful plants. Data were collected 30, 40, 60 and 80 days after planting. The best treatments were T1 (agricultural soil 100%) and T6 (agricultural soil 70% + rock flour 30%). The variable number of leaves, an average of 3.53 was recorded at 30 days and 5.17 at 80 days, with a difference of 1.64 leaves. Plant height was 1.03 cm at 30 days and 4.53 at 80 days. The stem diameter variable showed a difference of 0.09 cm from day 40 to day 80. For root length, mean values were 7.99 cm at 40 days and 15.58 cm at 80 days, with a difference of 7.59 cm. The percentage of useful plants was 53% with treatment T1. It is concluded that there is an influence of the different proportions of substrates on the growth and development of seedlings.Item Bioestimulación del crecimiento del botón floral en el cultivo de rosa (Rosa sp.), variedad Orange Crush(2021-03) López Ojeda, Ana Cristina; Curay Quispe, Segundo EuclidesThe production of cut flowers is one of the important activities of Ecuador and different parts of the world in addition to being export-oriented, the rose is one of the flowers with the greatest demand due to its particular characteristics that make it unique and so desired in the world. foreign market, in this research we are based on highlighting qualities that the market demands, the rose variety Orange Crush was chosen for being one of the preferred ones, it was carried out through the application of the biostimulant agrostemin where we evaluated the agronomic efficiency and also determined the best dose and application frequency where good effect was obtained on the flower bud, achieving averages of 5.25cm in height and 5.23 in width, 77cm in stem length and 0.85cm thickness, vase life of 22.25 days and yield we have an average of 5.63 stems / plant. Being quite favorable results in research and in the floricultural area.Item Utilización de eucalipto (Eucalyptus citriodora) como promotor del crecimiento en dietas para pollos de engorde(2015) Trujillo Santillán, Natalia Stefanía; Guerrero López, Jorge RicardoLa presente investigación evaluó la harina de Eucalipto (Eucalyptus citriodora) como promotor de crecimiento en las dietas para pollos de engorde en la parroquia Lizarzaburu del cantón Riobamba Provincia de Chimborazo, con este experimento se buscó dar una alternativa al uso de diferentes antibióticos promotores de crecimiento que actualmente se usa para la crianza de pollos de engorde, de tal manera que con el uso de la harina de Eucalipto (Eucalyptus citriodora) se pueda evitar la incidencia de enfermedades, se reduzca los costos de producción y se obtengan productos de origen animal inocuos para el consumo humano. La investigación inició elaboración de la harina de Eucalipto (Eucalipto citriodora) que constó con los siguientes pasos: recolección, selección, secado, molienda y tamizado del follaje del Eucalipto (Eucalipto citriodora). La investigación se realizó empleándose 320 pollos parrilleros de la línea genética Cobb 500 de un día de edad, con un peso promedio de 46.1g a su llegada, el galpón se dividió en 4 bloques con 2 repeticiones en cada uno, con un total de 32 unidades experimentales. La harina de Eucalipto (Eucalipto citriodora) fue adicionada en la dieta en dosis de 0.1% (T1), 0.2% (T2), 0.3% (T3) y 0% (T0). Se llevó a cabo un diseño en bloques completamente al azar (DBCA). Los datos se analizaron mediante el análisis de varianza y la prueba de Tukey 5% para los tratamientos. Los resultados no obtuvieron diferencia estadísticamente significativa (p>0.05) en ninguna de las variables en estudio, aunque cabe recalcar que la inclusión de harina de Eucalipto (Eucalipto citriodora) al 0.1% (T1) obtuvo un IEE de 291.9 y una rentabilidad de 24.35%