BIOSYNTHESIS OF NANOPARTICLES PRODUCED FROM ENTOMOPATHOGENIC FUNGI, Metarhizium rileyi (Farl.) AND IT’S EVALUATION AGAINST Spodoptera litura (Fab.) ON CABBAGE
| dc.contributor.advisor | S. H., RAMANAGOUDA | |
| dc.contributor.author | G. S., JAMUNARANI | |
| dc.contributor.other | C., SATYANARAYANA | |
| dc.contributor.other | MULLA, SAYEED. WAJEED. R. | |
| dc.contributor.other | M. M., VINAYKUMAR | |
| dc.contributor.other | GHANDE, ANITA RAJKUMAR | |
| dc.date.accessioned | 2020-09-28T06:05:11Z | |
| dc.date.available | 2020-09-28T06:05:11Z | |
| dc.date.issued | 2019-07 | |
| dc.description.abstract | In the studies conducted on Biosynthesis of nanoparticles produced from Entomopathogenic Fungi, Metarhizium rileyi (Farl.) and it’s evaluation against Spodoptera litura (Fab.) on cabbage, the six different concentrations (0.75, 1.00, 1.25, 1.50, 1.75, and 2.00 mM) of green silver nanoparticles were synthesized using M. rileyi and it was confirmed by visible colour change from yellow to dark brown of the solution. These different concentrations of green silver nanoparticles synthesized were tested against larvae of S. litura reared in the laboratory. All the concentrations recorded significantly highest mortality with gradual advancement of exposure period and reached to the highest mortality of 80.00 and 73.33 per cent in 1.75 and 2.00 mM of green silver nanoparticles, respectively against 2nd larvae with significant sub lethal effects. The selected two (1.75 and 2.00mM) concentrations were characterized using UV- Visible spectroscopy, Transmission Electron Microscopy (TEM), Scanning Electron Microscopy (SEM) and EDAX analysis. The surface plasmon resonance peaks were shown at 311 nm and 315 nm in 1.75 and 2.00 mM concentration, respectively in UV- Visible spectroscopy. The concentration of 1.75 and 2.00 mM green silver nanoparticles showed a range particle size of 64.11 to 99.08 nm, 64.11 to 128.2 nm and 12.80 to 22.20 nm, 11.00 to 19.00 nm in SEM and TEM analysis, respectively. The presence of elemental silver was confirmed in EDAX analysis. The effective two concentrations 1.75 and 2.00 mM of green silver nanoparticles under pot culture experiment significantly reduced the number of S. litura larvae compared to commercial formulation of M. rileyi and NSKE (4%). Among two concentrations of green silver nanoparticles 2.00 mM (78.75%) was highly effective compared to 1.75 mM (73.75%). The present investigations infer that green silver nanoparticles biosynthesized using M. rileyi are effective in suppressing the S. litura larval population both under laboratory and pot culture experiment. | en_US |
| dc.identifier.issn | UHS17PGM880 | |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810151993 | |
| dc.keywords | CABBAGE, T563 | en_US |
| dc.language.iso | English | en_US |
| dc.pages | 72 | en_US |
| dc.publisher | University of Horticultural Sciences, Bagalkot | en_US |
| dc.research.problem | Thesis | en_US |
| dc.sub | Entomology | en_US |
| dc.theme | BIOSYNTHESIS OF NANOPARTICLES PRODUCED FROM ENTOMOPATHOGENIC FUNGI, Metarhizium rileyi (Farl.) AND IT’S EVALUATION AGAINST Spodoptera litura (Fab.) ON CABBAGE | en_US |
| dc.these.type | M.Sc | en_US |
| dc.title | BIOSYNTHESIS OF NANOPARTICLES PRODUCED FROM ENTOMOPATHOGENIC FUNGI, Metarhizium rileyi (Farl.) AND IT’S EVALUATION AGAINST Spodoptera litura (Fab.) ON CABBAGE | en_US |
| dc.type | Thesis | en_US |