Global Change & Ecosystems

0470800 - ÚVGZ 2017 RIV CZ eng M - Monography Chapter
Klem, Karel - Mishra, Kumud - Hodaňová, Petra - Surá, Kateřina - Rapantová, Barbora - Urban, Otmar
Drought adaptation in plants: methods for phenotyping drought tolerance.
Global Change & Ecosystems. Volume 2. Brno: Ústav výzkumu globální změny AV ČR, v. v.i., 2016 - (Vačkář, D.; Janouš, D.), s. 50-61. ISBN 978-80-87902-17-2
R&D Projects: GA MŠMT(CZ) LO1415
Institutional support: RVO:67179843
Keywords : Drought stress * plant phenotyping * root system architecture * thermal imaging * spectral reflectance
Subject RIV: DG - Athmosphere Sciences, Meteorology

This chapter summarizes the basic mechanisms of plant adaptation to drought stress and the use of plant phenotyping methods to detect plant drought tolerance. The mechanisms of plant adaptation include avoidance of plant water deficits, water deficit tolerance and the efficiency mechanisms. Specific exper-iments demonstrated the potential of using phenotyping methods to detect drought adaptation mecha-nisms. These include the following: i) root phenotyping, which allows the evaluation of differences in root system architecture and in particular, the analysis of root architecture traits associated with drought toler-ance; ii) infrared thermal imaging to evaluate stomatal responses to drought and water use efficiency, and iii) spectral reflectance, which enables the evaluation of the impact of drought on the change in the leaf structure and pigment composition. All three phenotyping methods tested represent potential tools for screening genotypes that are tolerant to drought. However, each method has some advantages as well as limitations and can be thus used to detect different mechanisms of drought tolerance.
Permanent Link: http://hdl.handle.net/11104/0268353