STUDIES ON PERSISTENCE OF ACEPHATE, PROFENOFOS AND TRIAZOPHOS IN OKRA

Simple item page
dc.contributor.advisorSHARMA, I D
dc.contributor.authorNEGI, SARSWATI
dc.date.accessioned2017-05-20T06:52:59Z
dc.date.available2017-05-20T06:52:59Z
dc.date.issued2015
dc.description.abstractABSTRACT The present investigation entitled “Studies on persistence of acephate, profenofos and triazophos in okra’’ was carried out in the Department of Entomology, Dr. Y S Parmar University of Horticulture and Forestry, Nauni, Solan (HP) during the year 2014. The objectives of the study were i) to evaluate the persistence of acephate, profenofos and triazophos in okra fruits, ii) effect of processings on residues and the accumulation of insecticides in the soil. The persistence study on okra fruits recorded initial deposits due to single dose each of acephate, methamidophos, profenofos and triazophos as 1.858, 0.048, 1.418 and 1.838 mg kg -1 , respectively. However, at double dose the deposits were 3.337, 0.068, 2.801 and 3.092 mg kg -1 for respective insecticide. The initial deposits of 0.291, 0.483 and 0.500 mg kg -1 at single dose and 0.443, 0.056, 1.003 and 1.203 mg kg -1 at double dose were observed for acephate, methamidophos, profenofos and triazophos, respectively, in okra cropped soil. Acephate, profenofos and triazophos residues persisted in okra fruits upto 7 and 10 days at single and double dose, respectively. The residues of acephate, profenofos and triazophos in fruits reduced to half in less than 2 days. The waiting periods for the studied insecticides were worked out at their limit of determination(0.05 mgkg -1 ) due to lack of MRL value in India. The safe waiting periods on okra were suggested as8.2, 7.6 and 7.4 days for acephate, profenofos and triazophos, respectively. The washing of okra fruits by tap water, saline water and lukewarm water were found effective in removing the residues upto 41.87, 50.00 and 58.13 per cent, respectively. Open pan and microwave cooking provided upto 56.20 and 63.50 per cent relief, respectively from insecticide contamination. Cooking (microwave) was found as the most effective decontamination process.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810011766
dc.keywordsacephate, profenofos , triazophos , okra, persistenceen_US
dc.language.isoenen_US
dc.publisherUHF,NAUNIen_US
dc.subEntomologyen_US
dc.subjectnullen_US
dc.themeacephate, profenofos , triazophos , okra, persistenceen_US
dc.these.typeM.Sc
dc.titleSTUDIES ON PERSISTENCE OF ACEPHATE, PROFENOFOS AND TRIAZOPHOS IN OKRAen_US
dc.typeThesisen_US
Files
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
PDF M.Sc. Thesis Sarswati Negi (2015).pdf
Size:
851.59 KB
Format:
Adobe Portable Document Format
Description:
ENTOMOLOGY
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Theses