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http://dspace.udla.edu.ec/handle/33000/9995| Tipo de material : | bachelorThesis |
| Título : | Determinación de los efectos toxicológicos de glifosato sobre la germinación de semillas de especies nativas de Quito |
| Autor : | Monteros Herrera, Carolina Alexandra |
| Tutor : | Black Solís, Indira Fernandina |
| Palabras clave : | PRODUCTOS QUÍMICOS;QUÍMICA AGRÍCOLA;MALEZAS;CONTROL DE PLAGAS |
| Fecha de publicación : | 2018 |
| Editorial : | Quito: Universidad de las Américas, 2018 |
| Citación : | Monteros Herrera, C. A. (2018). Determinación de los efectos toxicológicos de glifosato sobre la germinación de semillas de especies nativas de Quito (Tesis de pregrado). Universidad de las Américas, Quito. |
| Resumen : | El uso de sustancias químicas para erradicar las malezas presentes en las áreas agrícolas plantas, ha incrementado a nivel mundial, generando efectos negativos en los recursos: suelo, aire y agua y sobre la salud humana... |
| Descripción : | The use of chemical substances to eradicate weeds present in agricultural areas plants, has increased worldwide, generating negative effects on resources: soil, air and water and on human health. For this reason, it has been necessary to implement biomonitoring tests at a laboratory scale, which allows to determine in a quick and economic way the influence of the herbicides on the germination processes in native seed species hawthorn and acacia of the city. Quito. The objectives of this work were to determine the toxicological effects of glyphosate on the germination and root length of Berberis halli and Acacia Melanoxylon seeds. Five concentrations were selected, the first 3 T1same 50 ug l, T2 same 200 ug l, T3 same 500 ug l based on the Macro-invertebrate thesis and the last two T4 same 800 ug l T5 same 1mg l by bibliography. The results were analyzed using two methods: analysis of variance ANOVA and simple Tukey correlation in the INFOSTAT program. A normalized germination index of low toxicity was obtained in all the hawthorn treatments, while in the acacia positive effects were demonstrated by the root growth of the seeds in the treatments T2 and T4 and a low toxicity in T1, T3 and T5 A percentage of normalized residual root elongation that improved root growth in hawthorn and acacia showed positive effects increased growth and negative effects due to low toxicity. According to the results obtained, the presence of significant differences in the root length of the hawthorn was demonstrated positive effect, unlike the acacia that did not show any type of reaction positive or negative in the variables analyzed. |
| URI : | http://dspace.udla.edu.ec/handle/33000/9995 |
| Aparece en las colecciones: | Ingeniería Ambiental en Prevención y Remediación |
Ficheros en este ítem:
| Fichero | Descripción | Tamaño | Formato | |
|---|---|---|---|---|
| UDLA-EC-TIAM-2018-26.pdf | 3,11 MB | Adobe PDF | Visualizar/Abrir |
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