Assessment of leaf chlorophyll content in pangola grass (Digitaria eriantha) using UAV-derived vegetation indices and chlorophyll meter (Record no. 9204)

MARC details
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005 - DATE AND TIME OF LATEST TRANSACTION
control field 20260817163609.0
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035 ## - SYSTEM CONTROL NUMBER
System control number .b12293611
099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC)
Classification number AIT Thesis no.AE-24-02
100 1# - MAIN ENTRY--PERSONAL NAME
Personal name Suthima Homhual
245 10 - TITLE STATEMENT
Title Assessment of leaf chlorophyll content in pangola grass (Digitaria eriantha) using UAV-derived vegetation indices and chlorophyll meter
260 ## - PUBLICATION, DISTRIBUTION, ETC.
Place of publication, distribution, etc. Pathum Thani, Thailand :
Name of publisher, distributor, etc. Asian Institute of Technology,
Date of publication, distribution, etc. 2024
300 ## - PHYSICAL DESCRIPTION
Extent 112 leaves :
Other physical details ill. +
Accompanying material 1online resource
490 1# - SERIES STATEMENT
Series statement Thesis ;
Volume/sequential designation no. AE-24-02
500 ## - GENERAL NOTE
General note A Thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Agricultural Systems and Engineering
502 ## - DISSERTATION NOTE
Dissertation note Thesis (M. Eng.) - Asian Institute of Technology, 2024
520 ## - SUMMARY, ETC.
Summary, etc. Optimizing nitrogen (N) application in agricultural systems is crucial for enhancing crop productivity and sustainability. This study delves into the impact of varying nitrogen levels on plant health, specifically focusing on chlorophyll content and vegetation higher nitrogen levels (60 kg/ha, 120 kg/ha, and 180 kg/ha) are associated with increased plant height, larger leaf area, and higher yields in terms of fresh and dry weight, indicating the positive effects of nitrogen on plant development indices as indicators of plant vigor and nitrogen status. Through a comprehensive analysis integrating field experiments and remote sensing techniques, we explore the intricate relationships between nitrogen application, SPAD values, vegetation indices (NDVI, NDRE, GNDVI) from UAVs and Plant-O-Meter, and total chlorophyll content. Higher nitrogen levels consistently correlate with increased plant height, leaf area, and yields, reflecting improved photosynthetic activity and overall plant health. Notably, SPAD values and total chlorophyll content exhibit a strong positive correlation, with higher SPAD values indicating greater chlorophyll concentration and enhanced photosynthetic efficiency. Regression analyses reveal a precise relationship high coefficient of determination (R² = 0.94), with every unit increase in SPAD values associated with a significant rise in total chlorophyll content. Furthermore, the analysis of vegetation indices (NDVI, NDRE, GNDVI) from UAVs and Plant-O-Meter shows consistent positive correlations with total chlorophyll content, indicating the utility of remote sensing data in assessing plant health and vigor. NDVI and GNDVI exhibit relatively stronger associations compared to NDRE, explaining significant portions (51% to 74%) of chlorophyll content variability, suggesting NDVI's and GNDVI's potential as a powerful remote sensing tool for monitoring nitrogen-induced changes and evaluating vegetation vigor remotely.
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Nitrogen
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Vegetation mapping
General subdivision Remote sensing
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Chlorophyll
General subdivision Analysis
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Grasses
General subdivision Analysis
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Himanshu, Sushil Kumar,
Relator term Chairperson
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Datta, Avishek,
Relator term Examination Committee
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Zulfiqar, Farhad,
Relator term Examination Committee
710 2# - ADDED ENTRY--CORPORATE NAME
Corporate name or jurisdiction name as entry element Her Majesty the Queen's Scholarship,
Relator term Scholarship Donor
810 2# - SERIES ADDED ENTRY--CORPORATE NAME
Corporate name or jurisdiction name as entry element Asian Institute of Technology.
Title of a work Thesis ;
Volume/sequential designation no. AE-24-02
856 40 - ELECTRONIC LOCATION AND ACCESS
Materials specified Full-Text
Uniform Resource Identifier <a href="http://203.159.5.9/ait-thesis/detail.php?q=B21440">http://203.159.5.9/ait-thesis/detail.php?q=B21440</a>
907 ## - LOCAL DATA ELEMENT G, LDG (RLIN)
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b mnait
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a 241021
998 ## - LOCAL CONTROL INFORMATION (RLIN)
Operator's initials, OID (RLIN) 0
Cataloger's initials, CIN (RLIN) 241011
First date, FD (RLIN) m
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945 ## - LOCAL PROCESSING INFORMATION (OCLC)
l mnarc
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type 71-e-Theses
909 ## - LOCAL ITEMS USED
Barcode Barcode : -
CREATED CREATED : 2024-10-16
RECORD Id RECORD # : i13516899
LPATRON LPATRON : 0
LCHKIN LCHKIN : -
RENEWALS # RENEWALS : 0
-- # OVERDUE : 0
-- IUSE3 : 0
-- TOT CHKOUT : 0
-- TOT RENEW : 0
Holdings
Withdrawn status Lost status Damaged status Not for loan Home library Current library Shelving location Date acquired Total checkouts Full call number Date last seen Price effective from Koha item type
      Available for Loans Asian Institute of Technology Library Asian Institute of Technology Library Archives 17/08/2026   AIT Thesis no.AE-24-02 17/08/2026 17/08/2026 71-e-Theses
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