Next Article in Journal
Corrections of BDS Code Multipath Error in Geostationary Orbit Satellite and Their Application in Precise Data Processing
Next Article in Special Issue
Phenomic and Physiological Analysis of Salinity Effects on Lettuce
Previous Article in Journal
A Virtual Force Algorithm-Lévy-Embedded Grey Wolf Optimization Algorithm for Wireless Sensor Network Coverage Optimization
Previous Article in Special Issue
Time-Series Chlorophyll Fluorescence Imaging Reveals Dynamic Photosynthetic Fingerprints of sos Mutants to Drought Stress
Open AccessArticle

Exploration of Chlorophyll a Fluorescence and Plant Gas Exchange Parameters as Indicators of Drought Tolerance in Perennial Ryegrass

1
Department of Environmental Improvement, Faculty of Civil and Environmental Engineering, Warsaw University of Life Sciences-SGGW, 02-776 Warsaw, Poland
2
Polish Academy of Sciences Botanical Garden-Center for Biological Diversity Conservation in Powsin, 02-973 Warsaw, Poland
3
Department of Plant Physiology, Faculty of Agriculture and Biology, Warsaw University of Life Sciences-SGGW, 02-776 Warsaw, Poland
4
Department of Biophysics and Radiobiology, Sofia University “St. Kl. Ohridski”, 1164 Sofia, Bulgaria
5
University of Agriculture in Kraków, Faculty of Agriculture and Economics, Department of Plant Physiology, 30-239 Krakow, Poland
6
Department of Plant Ecology, Institute of Botany, Faculty of Biology, Jagiellonian University, 30-387 Krakow, Poland
7
Department of Plant Physiology, Slovak University of Agriculture in Nitra, 949 76 Nitra, Slovakia
*
Author to whom correspondence should be addressed.
Sensors 2019, 19(12), 2736; https://doi.org/10.3390/s19122736
Received: 20 April 2019 / Revised: 18 May 2019 / Accepted: 4 June 2019 / Published: 18 June 2019
(This article belongs to the Special Issue Chlorophyll Fluorescence Sensing in Plant Phenotyping)
Perennial ryegrass (Lolium perenne L.) belongs to the common cultivated grass species in Central and Western Europe. Despite being considered to be susceptible to drought, it is frequently used for forming the turf in urban green areas. In such areas, the water deficit in soil is recognized as one of the most important environmental factors, which can limit plant growth. The basic aim of this work was to explore the mechanisms standing behind the changes in the photosynthetic apparatus performance of two perennial ryegrass turf varieties grown under drought stress using comprehensive in vivo chlorophyll fluorescence signal analyses and plant gas exchange measurements. Drought was applied after eight weeks of sowing by controlling the humidity of the roots ground medium at the levels of 30, 50, and 70% of the field water capacity. Measurements were carried out at four times: 0, 120, and 240 h after drought application and after recovery (refilling water to 70%). We found that the difference between the two tested varieties’ response resulted from a particular re-reduction of P700+ (reaction certer of PSI) that was caused by slower electron donation from P680. The difference in the rate of electron flow from Photosystem II (PSII) to PSI was also detected. The application of the combined tools (plants’ photosynthetic efficiency analysis and plant gas exchange measurements) allowed exploring and explaining the specific variety response to drought stress. View Full-Text
Keywords: plant stress; chlorophyll; turf grass varieties; gas exchange; delayed fluorescence; MR 820 plant stress; chlorophyll; turf grass varieties; gas exchange; delayed fluorescence; MR 820
Show Figures

Figure 1

MDPI and ACS Style

Dąbrowski, P.; Baczewska-Dąbrowska, A.H.; Kalaji, H.M.; Goltsev, V.; Paunov, M.; Rapacz, M.; Wójcik-Jagła, M.; Pawluśkiewicz, B.; Bąba, W.; Brestic, M. Exploration of Chlorophyll a Fluorescence and Plant Gas Exchange Parameters as Indicators of Drought Tolerance in Perennial Ryegrass. Sensors 2019, 19, 2736.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop