Green synthesis of iron and zinc nanoparticles and its agronomic fortification in rabi sorghum (sorghum bicolor l. Moench) (Record no. 71061)

MARC details
000 -LEADER
fixed length control field 02789nam a22002057a 4500
003 - CONTROL NUMBER IDENTIFIER
control field OSt
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20250619121825.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 250619b |||||||| |||| 00| 0 eng d
040 ## - CATALOGING SOURCE
Transcribing agency University of Agricultural Sciences, Dharwad
041 ## - LANGUAGE CODE
Language code English
082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER
Classification number 630
Author Label ARP
100 ## - MAIN ENTRY--PERSONAL NAME
Name of Author Arpitha H C
245 ## - TITLE STATEMENT
Title Green synthesis of iron and zinc nanoparticles and its agronomic fortification in rabi sorghum (sorghum bicolor l. Moench)
250 ## - EDITION STATEMENT
Edition Statement P hd (Agri)
260 ## - PUBLICATION, DISTRIBUTION, ETC.
Place of Publisher Dharwad
Name of Publisher University of Agricultural Sciences, Dharwad
Publication Year 2024
300 ## - PHYSICAL DESCRIPTION
Book Pages 249
Book Size 32 Cms
520 ## - SUMMARY, ETC.
Abstract. An experiment was carried out on green synthesis of iron (Fe) and zinc (Zn) nanoparticles (NPs) at Green Nanotechnology Laboratory, University of Agricultural Sciences, Dharwad. The Fe and Zn NPs were biosynthesized using neem leaf extract and characterized through UV-Visible Spectrophotometer, Particle Size Analyzer, Scanning Electron Microscope and X-Ray Diffraction. The green synthesized Fe NPs showed maximum peak at 294 nm and Zn NPs peaked at 365 nm. The average size of Fe and Zn NPs was found to be 51.7 and 48.7 nm, respectively. SEM images showed that both biosynthesized Fe and Zn NPs were spherical in shape. XRD proved amorphous and crystalline nature of iron and zinc nanoparticles, respectively. After synthesis and characterization of NPs, lab experiment was conducted to standardize the concentration of green synthesized Fe and Zn NPs. In a lab experiment (CRD, three replications), seed priming (SP) with Fe NPs @ 200 ppm, Zn NPs @ 500 ppm and combined Fe and Zn NPs @ 400 ppm each significantly improved germination, root length, shoot length and seedling vigour index compared to the control. A pot experiment (CRD, three replications) at IABT, Dharwad, revealed that foliar spraying (FS) of Fe NPs @ 400 ppm, Zn NPs @ 500 ppm and combined Fe and Zn NPs @ 400 ppm at panicle initiation and flowering stages was optimal. The standardized optimum concentration under lab and controlled condition were further studied under field condition and it was compared with conventional fertilizers. The field study was conducted in MARS, Dharwad, Karnataka, during rabi 2023-24. The experiment was laid out in RCBD with three replications comprising of fourteen treatments. Results revealed that, SP with Fe and Zn NPs @ 400 ppm each followed by FS with Fe and Zn NPs @ 400 ppm each recorded significantly higher grain yield (44.78 q ha-1), panicle length (23.69 cm), panicle weight (103.53 g), 1000-grain weight (37.57 g), grain Fe and Zn content (39.78 and 29.06 mg kg-1, respectively), gross returns (`1,54,785 ha-1), net returns (`1,09,353 ha-1) and B-C ratio (3.41) as compared to RDF alone.
700 ## - ADDED ENTRY--PERSONAL NAME
2nd Author, 3rd Author Sudha T
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha Item type THESIS
Edition P hd (Agri)
Classification part 630
Call number prefix ARP
Suppress in OPAC No
942 ## - ADDED ENTRY ELEMENTS (KOHA)
-- 630_000000000000000
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-- 71061
-- 71061
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 19/03/2025   630/ARP T14124 19/06/2025 1 19/06/2025 THESIS