Evaluación de la biodegradación de un insecticida piretroide en muestras de suelo de cultivo de papa mediante la adición de Trichoderma harzianum y Pleurotus ostreatus
The experiment was carried out in “San Fernando de Guamaní”, Quito, with the objective of evaluating the biodegradation of a pyrethroid insecticide in potato soil samples by the addition of T. harzianum and P. ostreatus. The field consisted in georeferencing the sampling site in the “El Capulí...
| Autor Principal: | Torres Granda, Evelyn Gabriela |
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| Formato: | bachelorThesis |
| Idioma: | spa |
| Publicado: |
2017
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| Materias: | |
| Acceso en línea: |
http://dspace.ups.edu.ec/handle/123456789/13679 |
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| Sumario: |
The experiment was carried out in “San Fernando de Guamaní”, Quito, with the
objective of evaluating the biodegradation of a pyrethroid insecticide in potato soil
samples by the addition of T. harzianum and P. ostreatus. The field consisted in
georeferencing the sampling site in the “El Capulí” sector in the province of Carchi
and obtaining soil samples. P. ostreatus seed was obtained in Calacalí. In the
laboratory phase, the analysis and quantification of the pyrethroid were performed
in the soil samples (at the beginning and at the end of the test); In this phase also
the isolation, massification and obtaining of the inoculum of each one of the fungic
species was realized. The experimental design was based on a DCA with 4
replicates and 4 treatments, T0 (control); T1 (soil + T. harzianum + pyrethroid);
T2 (soil + P. ostreatus + pyrethroid), T3 (soil + T. harzianum + P. ostreatus +
pyrethroid). The variables studied were temperature, humidity, pH and electrical
conductivity. T3 had a biodegradation percentage of 92.57%, surpassing the rest
of the treatments. The results presented in this research show that T. harzianum
and P. ostreatus are able to biodegrade the pyrethroid insecticide, confirming its
potential and effective application, therefore, bioremediation is an excellent
alternative in contaminant degradation processes. |
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