FATE OF BISPYRIBAC SODIUM IN SOIL AND ITS EFFECT ON RICE QUALITY

Simple item page
dc.contributor.advisorSharma, Neelam
dc.contributor.authorDevi, Sureshna
dc.date.accessioned2019-01-24T10:10:31Z
dc.date.available2019-01-24T10:10:31Z
dc.date.issued2018-07-24
dc.description.abstractIn present investigation entitled “Fate of bispyribac sodium in soil and its effect on rice quality”, a field experiment consisting of four treatments viz. bispyribac sodium 10g/ha, 20g/ha, 40g/ha and control was laid out in randomized block design (RBD) in the Department of Agronomy, Forages and Grassland Management, CSK HPKV, Palampur during kharif 2017. For residue and biochemical studies, soil and rice plant samples were collected at different time intervals after herbicide application and rice grain samples at crop harvest. Bispyribac sodium at three application rates i.e. 10g/ha, 20g/ha and 40g/ha persisted in soil upto 10, 15 and 45 days after herbicide spray, respectively. The degradation data generated indicated that more than 75 per cent of applied bispyribac sodium dissipated within 7 days of herbicide application. The logarithmic plots of herbicide concentration of different doses vs time fitted first order kinetics decay curve. Terminal residues of bispyribac sodium in rice grain were below detectable level (≤0.025μg/g). A significant decrease over control in biochemical attributes of rice leaves i.e. ALS activity and total carotenoids was observed upto 10 and 30 days respectively after bispyribac sodium application and thereafter the ALS activity and total carotenoids values were not influenced conspicuously. Whereas, total chlorophyll and total sugar content in rice leaves increased significantly with maximum increase noticed in treatment bispyribac sodium 20g/ha. Quality parameters i.e. total protein, total sugars and starch content were not influenced very distinctively with applied bispyribac sodium treatments. The data on residues and biochemical studies of bispyribac sodium in rice suggest that use of bispyribac sodium at three rates of application in rice crop is safe both in terms of crop quality and food safety point view. It can also be inferred from the above findings that effect of bispyribac on ALS and total carotenoids was temporary and recovered with passage of time.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810092321
dc.keywordsBispyribac sodiumen_US
dc.language.isoenen_US
dc.pages55en_US
dc.publisherCSKHPKV, Palampuren_US
dc.subBiochemistryen_US
dc.subjectnullen_US
dc.themeFate of bispyribac sodium in soilen_US
dc.these.typeM.Scen_US
dc.titleFATE OF BISPYRIBAC SODIUM IN SOIL AND ITS EFFECT ON RICE QUALITYen_US
dc.typeThesisen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
SURESHNA DEVI MSc BIOCHEMISTRY 2018.pdf
Size:
1.42 MB
Format:
Adobe Portable Document Format
Description:
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