Tesis Agronomía

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Author: search.filters.author.Acosta Espinoza, Kevin AlejandroHas files: Yes

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    Evaluación de hidrolatos de (Matricaria chamomilla) y (Equisetum arvense) para el control de (Sphaerotheca pannosa) en el cultivo de mora (Rubus glaucus
    (2024-08) Acosta Espinoza, Kevin Alejandro; Curay Quispe, Segundo Euclides
    The present work seeks to determine the action of chamomile (Matricaria Chamonilla) and horsetail (Equisetum ervense) hydrosols with a varied dosage, for the control of powdery mildew (Sphaerotheca pannosa) in the blackberry crop (Rubus glaucus) of the University Ambato technique. Doses of horsetail hydrosol (H2D1 – H2D2), chamomile hydrosol (H1D1 – H1D2) and their combination (H3D1 – H3D2) were analyzed at 10 (D1) and 15 ml/L (D2). The treatments included an application directly to the foliage of the plant with the help of a backpack pump. The variables that were analyzed in the blackberry leaves were the percentages of incidence, severity, chlorophyll and nitrogen levels. To carry out the test, a randomized block design (DBCA) was used with three treatments for two repetitions plus a control and for three repetitions, which established 21 experimental units (plots). For the incidence, averages were established, while for the analysis of severity the free Image J software was used, while for the analysis of nitrogen and chlorophyll levels the Manual of Chlorophy Meter MLS – 3 N equipment was used. It provided results in mg%g of nitrogen and SPAD of chlorophyll. The data collected were subjected to the Kruskal Wallis test at 5% for non-parametric analysis of variance. The results showed that the hydrosol with the best action and dose was the chamomile and horsetail hydrosol since its incidence (19.92%) and severity (75.762%) were those that presented a greater reduction rate than the rest of the treatments, while the data on nitrogen and chlorophyll proved not to be significant to establish a relationship with the treatments. Economically speaking, the production of hydrolates represents an advantage due to the low cost of its raw materials, but manufacturing costs are high, and the necessary equipment represents considerable expenses.