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@article{1837042,
author = {Abdelhakim, L.O.A. and Rosenqvist, E. and Wollenweber, B. and Spyroglou, Ioannis and Ottosen, C.O. and Panzarova, K.},
article_location = {BASEL},
article_number = {2},
doi = {http://dx.doi.org/10.3390/agronomy11020364},
keywords = {climate change; drought; heat stress; image-based phenotyping; RGB imaging; chlorophyll fluorescence imaging; thermal infrared imaging},
language = {eng},
issn = {2073-4395},
journal = {AGRONOMY-BASEL},
title = {Investigating Combined Drought- and Heat Stress Effects in Wheat under Controlled Conditions by Dynamic Image-Based Phenotyping},
url = {https://www.mdpi.com/2073-4395/11/2/364/htm},
volume = {11},
year = {2021}
}
TY - JOUR
ID - 1837042
AU - Abdelhakim, L.O.A. - Rosenqvist, E. - Wollenweber, B. - Spyroglou, Ioannis - Ottosen, C.O. - Panzarova, K.
PY - 2021
TI - Investigating Combined Drought- and Heat Stress Effects in Wheat under Controlled Conditions by Dynamic Image-Based Phenotyping
JF - AGRONOMY-BASEL
VL - 11
IS - 2
SP - 364
EP - 364
PB - MDPI
SN - 20734395
KW - climate change
KW - drought
KW - heat stress
KW - image-based phenotyping
KW - RGB imaging
KW - chlorophyll fluorescence imaging
KW - thermal infrared imaging
UR - https://www.mdpi.com/2073-4395/11/2/364/htm
N2 - As drought and heat stress are major challenges for crop productivity under future climate changes, tolerant cultivars are highly in demand. This study investigated the potential of existing Nordic wheat genotypes to resist unfavorable conditions. Four genotypes were selected based on their heat sensitivity (heat-sensitive: LM19, SF1; heat-tolerant: LM62, NS3). At the tillering stage, the plants were subjected to four treatments under controlled conditions: control, drought, heat and combined drought and heat stress. The morpho-physiological performance was quantified during the early and late phase of stress, as well as the recovery phase. We applied an integrative image-based phenotyping approach monitoring plant growth dynamics by structural Red Green Blue (RGB) imaging, photosynthetic performance by chlorophyll fluorescence imaging and transpiration efficiency by thermal infrared imaging. The results demonstrated that the selected genotypes were moderately affected in their photosynthetic efficiency and growth under drought stress, whereas heat and combined stress caused rapid reductions in photosynthesis and growth. Furthermore, drought stress had a major impact on canopy temperature. The NS3 genotype was the most robust genotype, as indicated by its improved response under all stress treatments due to its relatively small biomass. However, the genotypes showed different tolerance to individual and combined stress.
ER -
ABDELHAKIM, L.O.A., E. ROSENQVIST, B. WOLLENWEBER, Ioannis SPYROGLOU, C.O. OTTOSEN and K. PANZAROVA. Investigating Combined Drought- and Heat Stress Effects in Wheat under Controlled Conditions by Dynamic Image-Based Phenotyping. \textit{AGRONOMY-BASEL}. BASEL: MDPI, 2021, vol.~11, No~2, p.~364-385. ISSN~2073-4395. Available from: https://dx.doi.org/10.3390/agronomy11020364.
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