Degradation of Kresoxim-Methyl in Water: Impact of Varying pH, Temperature, Light and Atmospheric CO2 Level.
In the present investigation, persistence of kresoxim-methyl (a broad spectrum strobilurin fungicide) was studied in water. Results revealed that kresoxim-methyl readily form acid metabolite. Therefore, residues of kresoxim-methyl were quantified on the basis of parent molecule alone and sum total of kresoxim-methyl and its acid metabolite. In water, influence of various abiotic factors like pH, temperature, light and atmospheric carbon dioxide level on dissipation of kresoxim-methyl was studied. The half life value for kresoxim-methyl and total residue varied from 1 to 26.1 and 6.1 to 94.0 days under different conditions. Statistical analysis revealed the significant effect of abiotic factors on the dissipation of kresoxim-methyl from water.
Division of Agricultural Chemicals, Indian Agricultural Research Institute, New Delhi, 110012, India. ashish.iasbhu@gmail.com.|Soil Science and Agricultural Chemistry, Bihar Agricultural University, Sabour, 813210, India. ashish.iasbhu@gmail.com.
Ashish
A
Khandelwal
Division of Agricultural Chemicals, Indian Agricultural Research Institute, New Delhi, 110012, India. drsumangupta2002@yahoo.com.
Suman
S
Gupta
Division of Agricultural Chemicals, Indian Agricultural Research Institute, New Delhi, 110012, India. head_chem@iari.res.in.
Vijay T
VT
Gajbhiye
Indian Agricultural Statistics Research Institute, New Delhi, 110012, India. eldhoiasri@gmail.com.
Eldho
E
Varghese
D002245:Carbon Dioxide; D005659:Fungicides, Industrial / Q000737:chemistry* / Q000528:radiation effects; D006207:Half-Life; D008027:Light; D008689:Methacrylates / Q000737:chemistry / Q000528:radiation effects; D010648:Phenylacetates / Q000737:chemistry* / Q000528:radiation effects; D000073739:Strobilurins; D013696:Temperature; D014867:Water; D014874:Water Pollutants, Chemical / Q000737:chemistry* / Q000528:radiation effects
D005659:Fungicides, Industrial; D008689:Methacrylates; D010648:Phenylacetates; D000073739:Strobilurins; D014874:Water Pollutants, Chemical; D014867:Water; C469328:kresoxim-methyl; D002245:Carbon Dioxide
Abiotic factors; Acid metabolite; Dissipation; Kresoxim-methyl