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 Similar articles in Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Web of Science (13) Citing Articles via Google Scholar Google Scholar Articles by Xu, Q. Articles by Huang, B. Search for Related Content PubMed Articles by Xu, Q. Articles by Huang, B. Agricola Articles by Xu, Q. Articles by Huang, B. Related Collections Turfgrass Management

Lowering Soil Temperatures Improves Creeping Bentgrass Growth under Heat Stress

Dep. Plant Sci., Rutgers University, New Brunswick, NJ 08901

View larger version (62K): [in a new window]   Fig. 1. Diagram of a water bath. The soil temperatures were regulated by the circulating water (18°C) at variable flow rate. Low soil temperature was achieved by increasing flow rate.

View larger version (22K): [in a new window]   Fig. 2. Temperature profiles in soil and air under five differential air and soil temperature regimes. Bars on data points indicate standard errors; some were too small to be shown.

View larger version (21K): [in a new window]   Fig. 3. The responses of turf quality of two creeping bentgrass cultivars to reducing root-zone temperature at different times of treatment. Vertical bars on the top indicate LSDs (P = 0.05) for treatment comparison at a given time of treatment. Vertical bars on the right indicate LSDs (P = 0.05) for quality comparison over time within a temperature.

View larger version (25K): [in a new window]   Fig. 4. The responses of leaf chlorophyll content of two creeping bentgrass cultivars to reducing root-zone temperature at different times of treatment. Vertical bars on the top indicate LSDs (P = 0.05) for treatment comparison at a given time of treatment. Vertical bars on the right indicate LSDs (P = 0.05) for leaf chlorophyll comparison over time within a temperature.

View larger version (21K): [in a new window]   Fig. 5. The responses of tiller density of two creeping bentgrass cultivars to reducing root-zone temperature at different times of treatment. Vertical bars on the top indicate LSDs (P = 0.05) for treatment comparison at a given time of treatment. Vertical bars on the right indicate LSDs (P = 0.05) for tiller density comparison over time within a temperature.

View larger version (26K): [in a new window]   Fig. 6. The responses of shoot growth rate of two creeping bentgrass cultivars to reducing root-zone temperature at different times of treatment. Vertical bars on the top indicate LSDs (P = 0.05) for treatment comparison at a given time of treatment. Vertical bars on the right indicate LSDs (P = 0.05) for shoot growth rate comparison over time within a temperature.

View larger version (23K): [in a new window]   Fig. 7. The responses of clipping yield of two creeping bentgrass cultivars to reducing root-zone temperature at different times of treatment. Vertical bars on the top indicate LSDs (P = 0.05) for treatment comparison at a given time of treatment. Vertical bars on the right indicate LSDs (P = 0.05) for clipping yield comparison over time within a temperature.

View larger version (23K): [in a new window]   Fig. 8. The responses of root number of two creeping bentgrass cultivars to reducing root-zone temperature at different times of treatment. Vertical bars on the top indicate LSDs (P = 0.05) for treatment comparison at a given time of treatment. Vertical bars on the right indicate LSDs (P = 0.05) for root number comparison over time within a temperature.

View larger version (23K): [in a new window]   Fig. 9. The responses of root fresh weight of two creeping bentgrass cultivars to reducing root-zone temperature at different times of treatment. Vertical bars on the top indicate LSDs (P = 0.05) for treatment comparison at a given time of treatment. Vertical bars on the right indicate LSDs (P = 0.05) for root fresh weight comparison over time within a temperature.

View larger version (23K): [in a new window]   Fig. 10. The responses of root/shoot (R/S) ratio of two creeping bentgrass cultivars to reducing root-zone temperature at different times of treatment. Vertical bars on the top indicate LSDs (P = 0.05) for treatment comparison at a given time of treatment. Vertical bars on the right indicate LSDs (P = 0.05) for R/S comparison over time within a temperature.