Herbicidas hormonales, mecanismos de acción en malezas
| dc.contributor.advisor | Cadena Piedrahita, Dalton | |
| dc.contributor.author | Pérez Santos, Gibelly Magaly | |
| dc.date.accessioned | 2021-10-19T15:10:51Z | |
| dc.date.available | 2021-10-19T15:10:51Z | |
| dc.date.issued | 2021 | |
| dc.identifier.uri | http://dspace.utb.edu.ec/handle/49000/10210 | |
| dc.description | Hormonal herbicides are complex compounds that have the ability to control weeds in crops. For a herbicide to fulfill the function of controlling weeds by affecting their physiological and biochemical processes, it must be able to penetrate inside the plants and move within them from the site of penetration to the site where it exerts its action. Hormonal herbicides are made up of the chemical families: phenoxycarboxylic, benzoic, pyridinecarboxylic, and quinolinecarboxylic. The mechanism of action of these herbicides is the imbalance they produce in the hormonal control system of plants, which triggers a series of varied and complex processes, which ultimately lead to the death of the plant. There is another mechanism of action that affects hormonal balance in plants by inhibiting auxin transport. In this sense, auxin hormones are produced in the meristematic tissues of plants, in which these compounds move through parenchymal cells in contact with vascular bundles through a polar transport system, which is suspected to include specific transporter proteins. . The information obtained was made by means of the analysis, synthesis and summary technique, in order for the reader to know the importance of hormonal herbicides and their mechanisms of action in weeds. For the above detailed it was determined that, to promote the mechanisms of action of hormonal herbicides in weeds, they must be applied in the correct doses, allowing a set of symptoms such as: growth paralysis in root meristems, loss of tropism. During the application of hormonal herbicides, their volatility and dispersion due to the action of the wind are important, since they can affect crops that are very sensitive to these products | es_ES |
| dc.description | Hormonal herbicides are complex compounds that have the ability to control weeds in crops. For a herbicide to fulfill the function of controlling weeds by affecting their physiological and biochemical processes, it must be able to penetrate inside the plants and move within them from the site of penetration to the site where it exerts its action. Hormonal herbicides are made up of the chemical families: phenoxycarboxylic, benzoic, pyridinecarboxylic, and quinolinecarboxylic. The mechanism of action of these herbicides is the imbalance they produce in the hormonal control system of plants, which triggers a series of varied and complex processes, which ultimately lead to the death of the plant. There is another mechanism of action that affects hormonal balance in plants by inhibiting auxin transport. In this sense, auxin hormones are produced in the meristematic tissues of plants, in which these compounds move through parenchymal cells in contact with vascular bundles through a polar transport system, which is suspected to include specific transporter proteins. . The information obtained was made by means of the analysis, synthesis and summary technique, in order for the reader to know the importance of hormonal herbicides and their mechanisms of action in weeds. For the above detailed it was determined that, to promote the mechanisms of action of hormonal herbicides in weeds, they must be applied in the correct doses, allowing a set of symptoms such as: growth paralysis in root meristems, loss of tropism. During the application of hormonal herbicides, their volatility and dispersion due to the action of the wind are important, since they can affect crops that are very sensitive to these products | es_ES |
| dc.description.abstract | Los herbicidas hormonales son compuestos complejos que tienen la capacidad de controlar las arvenses en los cultivos. Para que un herbicida pueda cumplir la función de controlar las malezas afectando los procesos fisiológicos y bioquímicos de estas, debe poder penetrar al interior de las plantas y moverse dentro de ella desde el sitio de penetración hasta el sitio donde ejerce su acción. Los herbicidas hormonales están conformados por las familias químicas: fenoxicarboxílicos, benzoicos, piridincarbo-xílicos y quinolincarboxílicos. El mecanismo de acción de estos herbicidas es el desequilibrio que producen en el sistema de control hormonal de las plantas es lo que desencadena una serie de procesos variados y complejos, que al final generan la muerte de la planta. Existe otro mecanismo de acción que afecta el equilibrio hormonal en las plantas a través de la inhibición del transporte de las auxinas. En este aspecto las hormonas auxínicas se producen en los tejidos meristemáticos de las plantas, en la cual estos compuestos se mueven por medio de células del parénquima en contacto con haces vasculares por un sistema polar de transporte, que se sospecha incluye proteínas transportadoras específicas. La información obtenida fue efectuada mediante la técnica de análisis, síntesis y resumen, con la finalidad de que el lector conozca sobre la importancia de los herbicidas hormonales y sus mecanismos de acción en malezas. Por lo anteriormente detallado se determinó que, para promover los mecanismos de acción de los herbicidas hormonales en las malezas, se deben aplicar en las dosis correctas, permitiendo un conjunto de síntomas como: la paralización del crecimiento en meristemas de raíces, pérdida del tropismo. Durante la aplicación de los herbicidas hormonales su volatilidad y dispersión por la acción del viento son importantes, debido a que pueden afectar a cultivos que son muy sensibles a estos productos. | es_ES |
| dc.format.extent | 15 p. | es_ES |
| dc.language.iso | es | es_ES |
| dc.publisher | BABAHOYO: UTB, 2021 | es_ES |
| dc.rights | Atribución-NoComercial-SinDerivadas 3.0 Ecuador | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/ec/ | * |
| dc.subject | Herbicidas hormonales | es_ES |
| dc.subject | Mecanismos de acción | es_ES |
| dc.subject | Malezas | es_ES |
| dc.subject | Aplicación | es_ES |
| dc.title | Herbicidas hormonales, mecanismos de acción en malezas | es_ES |
| dc.type | bachelorThesis | es_ES |
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