Volume 7, Issue 4, August 2014, Pages 1534–1543
Yumnam Devashree1, B.K. Dutta2, S.B. Paul3, and Sudip Choudhury4
1 Microbial & Agricultural Ecology and Biodiversity Conservation Laboratory, Department of Ecology and Environmental Science, Assam University, Silchar, 788011, Assam, India
2 Microbial & Agricultural Ecology and Biodiversity Conservation Laboratory, Department of Ecology and Environmental Science, Assam University, Silchar, 788011, Assam, India
3 Department of Chemistry, Assam University, Silchar, 788011, Assam, India
4 Department of Chemistry, Assam University, Silchar, 788011, Assam, India
Original language: English
Copyright © 2014 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
The effect of two pesticides Paraquat and Fipronil on the soil and rhizosphere microflora of tea (i.e. fungi, actinomycetes and bacteria) was studied. The experiment was conducted over a period of 65 days and the observations were made at different interval of days (5, 20, 35, 50 and 65 days) respectively for both the rhizosphere and non rhizosphere soil. Paraquat and Fipronil had a transient negative effect on the rhizosphere and non rhizosphere soil microorganisms, however the negative effect was observed at the initial stage only. The dehydrogenase and phosphatase activity in the said soil also showed an inhibitory response at the initial stage but was able to recover with time.
Author Keywords: Actinomycetes, Bacteria, Dehydrogenase activity, Fungi, Pesticide, Phosphatase Activity, Rhizosphere.
Yumnam Devashree1, B.K. Dutta2, S.B. Paul3, and Sudip Choudhury4
1 Microbial & Agricultural Ecology and Biodiversity Conservation Laboratory, Department of Ecology and Environmental Science, Assam University, Silchar, 788011, Assam, India
2 Microbial & Agricultural Ecology and Biodiversity Conservation Laboratory, Department of Ecology and Environmental Science, Assam University, Silchar, 788011, Assam, India
3 Department of Chemistry, Assam University, Silchar, 788011, Assam, India
4 Department of Chemistry, Assam University, Silchar, 788011, Assam, India
Original language: English
Copyright © 2014 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
The effect of two pesticides Paraquat and Fipronil on the soil and rhizosphere microflora of tea (i.e. fungi, actinomycetes and bacteria) was studied. The experiment was conducted over a period of 65 days and the observations were made at different interval of days (5, 20, 35, 50 and 65 days) respectively for both the rhizosphere and non rhizosphere soil. Paraquat and Fipronil had a transient negative effect on the rhizosphere and non rhizosphere soil microorganisms, however the negative effect was observed at the initial stage only. The dehydrogenase and phosphatase activity in the said soil also showed an inhibitory response at the initial stage but was able to recover with time.
Author Keywords: Actinomycetes, Bacteria, Dehydrogenase activity, Fungi, Pesticide, Phosphatase Activity, Rhizosphere.
How to Cite this Article
Yumnam Devashree, B.K. Dutta, S.B. Paul, and Sudip Choudhury, “The effect of Paraquat and Fipronil on the soil and rhizosphere microflora of tea (Camellia sinensis (L) O. kuntze),” International Journal of Innovation and Applied Studies, vol. 7, no. 4, pp. 1534–1543, August 2014.
