Impact of Selected Insecticides on Protease and Invertase Activities in Groundnut (Arachis Hypogaea L.) Soils

Mohidding , J. and Srinivasulu, M. and Madakka, M. and et al, . (2013) Impact of Selected Insecticides on Protease and Invertase Activities in Groundnut (Arachis Hypogaea L.) Soils. Discovery Biotechnology, 4 (11). pp. 24-31.

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Abstract

We investigated the impact of two selected pesticides, imidacloprid a neonicotinoid and acephate an organophosphate on soil enzyme activities, such as protease and invertase in two soils (laterite and vertisol) collected from groundnut (Arachis hypogaea L.) cultivated fields of Anantapur district of Andhra Pradesh, India, by conducting experiments in laboratory at different concentrations (10, 25, 50, 75, 100ppm) which are equivalent to field application rates (1.0, 2.5, 5.0, 7.5, 10.0 kg ha-1), to check the soil health and fertility in terms of soil indicators. In our reporting we observed, protease and invertase activities were more pronounced at 2.5 kg ha-1 in both soils after 10 days of incubation. Furthermore increase in pesticide concentration decreased the enzyme activity. However the stimulatory effect was observed up to 20 days of incubation in both soils. Whereas, the decline phase started after 20 to 40 days of incubation. Finally, higher concentrations of 5.0 to 10.0 kg ha-1 were toxic or innocuous to protease and invertase activities in both soils. Based on the above results, it is concluded that the protease and invertase were not affected, by the insecticides applied at recommended levels in agricultural systems

Item Type: Article
Uncontrolled Keywords: Acephate, invertase, imidacloprid, protease, groundnut (Arachis hypogea L.) soils
Author Affiliation: Research scholar: Dept. of Microbiology, Sri Krishnadevaraya University, Anantapur -515005, Andhra Pradesh, India
Subjects: Plant Protection
Soil Science and Microbiology
Crop Improvement
Divisions: Groundnut
Depositing User: Mr Daneti Raju
Date Deposited: 13 Dec 2013 13:13
Last Modified: 13 Dec 2013 13:13
URI: http://eprints.icrisat.ac.in/id/eprint/12227

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