HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Abstract Full Text Free Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Web of Science (14) Citing Articles via Google Scholar Google Scholar Articles by Wang, Z. Articles by Huang, B. Search for Related Content PubMed Articles by Wang, Z. Articles by Huang, B. Agricola Articles by Wang, Z. Articles by Huang, B. Related Collections Turfgrass Management Temperature Stress Water Stress Turfgrass

Physiological Recovery of Kentucky Bluegrass from Simultaneous Drought and Heat Stress

^a Dep. of Plant Biology and Pathology, Rutgers Univ., New Brunswick, NJ 08901
^b College of Agricultural and Biological Sci., Shanghai Jiao Tong Univ., Shanghai 201101, China

View larger version (24K): [in a new window]   Fig. 1. Effects of the combined drought and heat stress on turf quality, Fv/Fm ratio, electrolyte leakage (EL), and chlorophyll content for ‘Midnight’ and ‘Brilliant’. Vertical bars on the top indicate LSD values (P = 0.05) for the comparison between cultivars at the given day of treatment. Vertical bars on the right are the LSD values for the comparisons over time of treatment for each cultivar.

View larger version (18K): [in a new window]   Fig. 2. Effects of the combined drought and heat stress on the activities of superoxide dismutase (SOD) and catalase (CAT), and malondialdehyde (MDA) content for ‘Midnight’ and ‘Brilliant’. Vertical bars on the top indicate LSD values (P = 0.05) for the comparison between cultivars at the given day of treatment. Vertical bars on the right are the LSD values for the comparisons over time of treatment for each cultivar.

View larger version (13K): [in a new window]   Fig. 3. Recovery in turf quality following rewatering, cooling, and rewatering + cooling for ‘Midnight’ and ‘Brilliant’. The horizontal line indicates the prestress level of the parameter. Vertical bars on the top indicate LSD values (P = 0.05) for the comparison between treatments at the given day of treatment. Vertical bars on the right are the LSD values for the comparisons over time for each treatment.

View larger version (14K): [in a new window]   Fig. 4. Recovery in electrolyte leakage (EL) following rewatering, cooling, and rewatering + cooling for ‘Midnight’ and ‘Brilliant’. The horizontal dotted line indicates the prestress level of the parameter. Vertical bars on the top indicate LSD values (P = 0.05) for the comparison between treatments at the given day of treatment. The LSD values were 2.97, 2.97, 4.05, and 2.93, respectively, for Brilliant following rewatering + cooling, cooling, rewatering, and drought + heat. The corresponding values for Midnight were 4.05, 4.05, 6.28, and 5.31.

View larger version (15K): [in a new window]   Fig. 5. Recovery in leaf photochemical efficiency (Fv/Fm) following rewatering, cooling, and rewatering + cooling for ‘Midnight’ and ‘Brilliant’. The horizontal dotted line indicates the prestress level of the parameter. Vertical bars on the top indicate LSD values (P = 0.05) for the comparison between treatments at the given day of treatment. The LSD values were 0.14, 0.19, 0, and 0, respectively, for Brilliant following rewatering + cooling, cooling, rewatering, and drought + heat. The corresponding values for Midnight were 0.09, 0.15, 0.01, and 0.

View larger version (15K): [in a new window]   Fig. 6. Recovery in leaf chlorophyll content following rewatering, cooling, rewatering and cooling for ‘Midnight’ and ‘Brilliant’. The horizontal dotted line indicates the prestress level of the parameter. Vertical bars on the top indicate LSD values (P = 0.05) for the comparison between treatments at the given day of treatment. The LSD values were 1.29, 0, 0, and 0, respectively, for Brilliant following rewatering + cooling, cooling, rewatering, and drought + heat. The corresponding values for Midnight were 2.04, 0.83, 0.58, and 0.

View larger version (19K): [in a new window]   Fig. 7. Recovery in superoxide dismutase (SOD) activity, catalase (CAT) activity, and malondialdehyde (MDA) content following rewatering, cooling, and rewatering + cooling for ‘Midnight’. The horizontal dotted line indicates the prestress level of each parameter. Vertical bars on the top indicate LSD values (P = 0.05) for the comparison between treatments at the given day of treatment. Vertical bars on the right are the LSD values for the comparisons over time for each treatment.

View larger version (17K): [in a new window]   Fig. 8. Recovery in superoxide dismutase (SOD) activity, catalase (CAT) activity, and malondialdehyde (MDA) content following rewatering, cooling, and rewatering + cooling for ‘Brilliant’. The horizontal line indicates the prestress level of each parameter. Vertical bars on the top indicate LSD values (P = 0.05) for the comparison between treatments at the given day of treatment. Vertical bars on the right are the LSD values for the comparisons over time for each treatment.