Evaluation of Responsivity to Drought Stress Using Infrared Thermography and Chlorophyll Fluorescence in Potted Clones of Cryptomeria japonica
Open Access
- 2 January 2021
- Vol. 12 (1), 55
- https://doi.org/10.3390/f12010055
Abstract
As climate change progresses, the breeding of drought-tolerant forest trees is necessary. Breeding drought-tolerant trees requires screening for drought stress using a large number of individuals and a high-throughput phenotyping method. The aim of this study was therefore to establish high-throughput methods for evaluating the clonal stress responses to drought stress using infrared thermography and chlorophyll fluorescence methods in Cryptomeria japonica. The stomatal conductance index (Ig), maximum photochemical quantum yield of photosystem II (Fv/Fm), and axial growth of four plus-tree clones of C. japonica planted in pots were measured weekly for 85 days after irrigation was stopped. The phenotypic trait responsivity to drought stress was estimated by a nonlinear mixed model and by introducing the cumulative water index, which considers the past history of the soil water environment. These methods and procedures enabled us to evaluate the clonal stress responses in C. japonica and could be applied to large-scale clone materials to promote the breeding program for drought tolerance.Keywords
This publication has 42 references indexed in Scilit:
- Genetic Variation of Drought Tolerance in Pinus pinaster at Three Hierarchical Levels: A Comparison of Induced Osmotic Stress and Field TestingPLOS ONE, 2013
- Genome-wide responses to drought in forest treesForestry: An International Journal of Forest Research, 2011
- A global overview of drought and heat-induced tree mortality reveals emerging climate change risks for forestsForest Ecology and Management, 2010
- A rapid, non-invasive procedure for quantitative assessment of drought survival using chlorophyll fluorescencePlant Methods, 2008
- Chlorophyll Fluorescence: A Probe of Photosynthesis In VivoAnnual Review of Plant Biology, 2008
- Exploring thermal imaging variables for the detection of stress responses in grapevine under different irrigation regimesJournal of Experimental Botany, 2006
- Drought stress inhibits photosynthesis by decreasing stomatal aperture – not by affecting ATP synthesisTrends in Plant Science, 2000
- Comparative field study of spring and summer leaf gas exchange and photobiology of the mediterranean trees Quercus ilex and Phillyrea latifoliaJournal of Experimental Botany, 1998
- Chlorophyll Fluorescence and Photosynthesis: The BasicsAnnual Review of Plant Physiology and Plant Molecular Biology, 1991
- Chlorophyll Fluorescence as a Probe of the Photosynthetic Competence of Leaves in the Field: A Review of Current InstrumentationFunctional Ecology, 1989