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Interaction Effects of Selected Pesticides on Soil Enzymes

The laboratory studies were conducted to resolute the effects of imidacloprid (insecticide) and triadimefon (fungicide) singly and in combination on enzymatic activities of soil microorganisms in tomato cultivated soils at different concentrations of 0.2, 0.5 and 0.7 kg/ha. The rate of amylase activ...

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Autores principales: Deborah, B. Vineela, Mohiddin, M. Jaffer, Madhuri, R. Jaya
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3877485/
https://www.ncbi.nlm.nih.gov/pubmed/24403727
http://dx.doi.org/10.4103/0971-6580.121665
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author Deborah, B. Vineela
Mohiddin, M. Jaffer
Madhuri, R. Jaya
author_facet Deborah, B. Vineela
Mohiddin, M. Jaffer
Madhuri, R. Jaya
author_sort Deborah, B. Vineela
collection PubMed
description The laboratory studies were conducted to resolute the effects of imidacloprid (insecticide) and triadimefon (fungicide) singly and in combination on enzymatic activities of soil microorganisms in tomato cultivated soils at different concentrations of 0.2, 0.5 and 0.7 kg/ha. The rate of amylase activity was stimulated by the application of pesticides at field rate. High dosage decreased the activity of amylase. Decline in the activity of cellulase was observed at all concentrations than control. Imidacloprid had an improved activity of cellulase at 0.5 μg/g than tridimefon and combination. At higher concentration (0.7 μg/g), the combination of insecticide and fungicide showed an antagonistic interaction toward cellulase. After 24 h, maximum inhibition was observed in invertase enzyme rate at all examined dosages. After 48 h, the activity was revived to some extent and imidacloprid showed enhanced activity at 0.5 μg/g (field rate). However at 0.7 μg/g, imidacloprid has a noticeable effect on the invertase. The pesticide application in single and in combination (0.2-0.7 μg/g soil) triggered the dehydrogenase activity. At field rate triadimefon significantly quickened the activity.
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spelling pubmed-38774852014-01-08 Interaction Effects of Selected Pesticides on Soil Enzymes Deborah, B. Vineela Mohiddin, M. Jaffer Madhuri, R. Jaya Toxicol Int Original Article The laboratory studies were conducted to resolute the effects of imidacloprid (insecticide) and triadimefon (fungicide) singly and in combination on enzymatic activities of soil microorganisms in tomato cultivated soils at different concentrations of 0.2, 0.5 and 0.7 kg/ha. The rate of amylase activity was stimulated by the application of pesticides at field rate. High dosage decreased the activity of amylase. Decline in the activity of cellulase was observed at all concentrations than control. Imidacloprid had an improved activity of cellulase at 0.5 μg/g than tridimefon and combination. At higher concentration (0.7 μg/g), the combination of insecticide and fungicide showed an antagonistic interaction toward cellulase. After 24 h, maximum inhibition was observed in invertase enzyme rate at all examined dosages. After 48 h, the activity was revived to some extent and imidacloprid showed enhanced activity at 0.5 μg/g (field rate). However at 0.7 μg/g, imidacloprid has a noticeable effect on the invertase. The pesticide application in single and in combination (0.2-0.7 μg/g soil) triggered the dehydrogenase activity. At field rate triadimefon significantly quickened the activity. Medknow Publications & Media Pvt Ltd 2013 /pmc/articles/PMC3877485/ /pubmed/24403727 http://dx.doi.org/10.4103/0971-6580.121665 Text en Copyright: © Toxicology International http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Deborah, B. Vineela
Mohiddin, M. Jaffer
Madhuri, R. Jaya
Interaction Effects of Selected Pesticides on Soil Enzymes
title Interaction Effects of Selected Pesticides on Soil Enzymes
title_full Interaction Effects of Selected Pesticides on Soil Enzymes
title_fullStr Interaction Effects of Selected Pesticides on Soil Enzymes
title_full_unstemmed Interaction Effects of Selected Pesticides on Soil Enzymes
title_short Interaction Effects of Selected Pesticides on Soil Enzymes
title_sort interaction effects of selected pesticides on soil enzymes
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3877485/
https://www.ncbi.nlm.nih.gov/pubmed/24403727
http://dx.doi.org/10.4103/0971-6580.121665
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