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@MASTERSTHESIS{Koneru:1026346,
author = {Koneru, Mehala},
othercontributors = {Muller, Onno and Siegmann, Bastian and Kooistra, lammert},
title = {{C}omparative and diurnal analysis of sun-induces
fluorescence as a water stress indicator in arable crops},
school = {Wageningen University},
type = {Masterarbeit},
reportid = {FZJ-2024-03388, GIRS-2024-32},
pages = {33 p},
year = {2024},
note = {Masterarbeit, Wageningen University, 2024},
abstract = {Detection of stress effects in crops is crucial for
sustainable agriculturalpractices. Sun-induced fluorescence
is a promising tool for monitoring thephotosynthetic
activity of plants and crop health and has advantages
overtraditional vegetation indices to be sensitive to plant
changes. In this study,we use high-resolution spectral data
from the Hyplant airborne sensor to detectwater stress in
arable crops and compare SIF over the vegetation indices-
NDVI and PRI to determine sensitivity to changes in plant
environmentalconditions. We analyzed SIF variations across
different crop varieties andtreatments spatially and
diurnally to detect water stress among plots. Weobserved
higher SIF values in the summer wheat crop compared to
winterwheat and beans wheat mixture, indicating better crop
health and photosyntheticactivity. Lower SIF values are
associated with stress conditions. Diurnalanalysis of SIF
showed that the peak values are at midday relating to
lightintensity and rising temperature and decreasing in the
afternoon. ComparingSIF with NDVI and PRI showed that SIF is
more sensitive to plant responsesthan vegetation indices.
This study highlights the potential of using SIF as atool
for the detection of water stress. In future research,
integrating validationdata to characterize stress in plants
would be more effective in monitoring andmanagement in
agriculture.},
cin = {IBG-2},
cid = {I:(DE-Juel1)IBG-2-20101118},
pnm = {2173 - Agro-biogeosystems: controls, feedbacks and impact
(POF4-217)},
pid = {G:(DE-HGF)POF4-2173},
typ = {PUB:(DE-HGF)19},
doi = {10.34734/FZJ-2024-03388},
url = {https://juser.fz-juelich.de/record/1026346},
}