Investigations on Acorus calamus Based Silver and Zinc Nanoparticles Against Sitophilus Oryzae and Corcyra Cephalonica (Record no. 70808)

MARC details
000 -LEADER
fixed length control field 02675nam a2200217 4500
003 - CONTROL NUMBER IDENTIFIER
control field OSt
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20250207161654.0
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fixed length control field 250207b |||||||| |||| 00| 0 eng d
040 ## - CATALOGING SOURCE
Transcribing agency UAS Dharwad
041 ## - LANGUAGE CODE
Language code English
082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER
Classification number 595.7
Author Label DES
100 ## - MAIN ENTRY--PERSONAL NAME
Name of Author Desai Kavita C.
245 ## - TITLE STATEMENT
Title Investigations on Acorus calamus Based Silver and Zinc Nanoparticles Against Sitophilus Oryzae and Corcyra Cephalonica
250 ## - EDITION STATEMENT
Edition Statement M.Sc. (Agri)
260 ## - PUBLICATION, DISTRIBUTION, ETC.
Place of Publisher Dharwad
Name of Publisher University of Agricultural Sciences
Publication Year 2024
300 ## - PHYSICAL DESCRIPTION
Book Pages 125
Book Size 32 Cms
520 ## - SUMMARY, ETC.
Abstract. ABSTRACT<br/><br/> Investigations on biosynthesis and evaluation of silver (AgNPs) and zinc nanoparticles (ZnNPs) synthesized using sweet flag rhizome extract against Sitophilus oryzae and Corcyra cephalonica in wheat were carried out at the University of Agricultural Sciences, Dharwad, Karnataka. The bioactive compounds present in the extract act as both reducing and stabilizing agents for synthesis of nanoparticles. AgNPs and ZnNPs showed maximum UV absorption peak of at 437 nm and 356 nm, respectively, with mean diameters of 42.08 nm and 32.68 nm. SEM images showed that AgNPs exhibited spherical to irregular shapes, while ZnNPs showed sheet-like to irregular shapes. EDX spectral images confirmed their elemental composition and XRD pattern indicated their crystalline nature. FTIR spectroscopy showed the involvement of organic groups responsible for capping and stabilizing the nanoparticles. <br/>To standardize the concentrations for bioefficacy studies, different concentrations of AgNPs and ZnNPs ranging from 500 to 2500 ppm against S. oryzae and C. cephalonica were evaluated by observing mortality rates. As the concentration and days after treatment (DAT) increased, per cent mortality also increased. Among the different concentrations, AgNPs and ZnNPs both at 2500 ppm proved to be effective by recording cent per cent mortality against S. oryzae and C. cephalonica. Repellency tests showed higher efficacy for AgNPs compared to ZnNPs on S. oryzae. <br/>Among silver and zinc nanoparticles, AgNPs at 2500 ppm was proved to be most effective against S. oryzae by completely inhibiting adult emergence, seed damage and weight loss up to 90 DAT during storage. This effectiveness was comparable to that of chemical check Deltamethrin. ZnNPs at 2500 ppm also resulted in least population buildup, seed damage and weight loss at 90 DAT. AgNPs additionally enhanced seed germination. Further, AgNPs and ZnNPs at 2500 ppm showed cent per cent mortality of C. cephalonica at 15 DAT.
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Subject Agricultural Entomology
700 ## - ADDED ENTRY--PERSONAL NAME
2nd Author, 3rd Author Kambrekar D. N.
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha Item type THESIS
Edition M.Sc. (Agri)
Classification part 595.7
Call number prefix DES
Suppress in OPAC No
942 ## - ADDED ENTRY ELEMENTS (KOHA)
-- 595_700000000000000
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-- 70808
-- 70808
Holdings
Withdrawn status Lost status Source of classification or shelving scheme Damaged status Not for loan Home library Current library Date acquired Total checkouts Full call number Barcode Date last seen Copy number Price effective from Koha item type
    Dewey Decimal Classification     University of Agricultural Sciences, Dharwad University of Agricultural Sciences, Dharwad 28/11/2024   595.7/DES T14042 07/02/2025 1 07/02/2025 THESIS