Full TGIF Record # 97228
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DOI:10.21273/HORTSCI.39.5.1133
Web URL(s):https://journals.ashs.org/hortsci/view/journals/hortsci/39/5/article-p1133.xml?rskey=FZePqV
    Last checked: 11/19/2019
    Requires: PDF Reader
Publication Type:
i
Refereed
Author(s):Wang, Zhaolong; Huang, Bingru; Bonos, Stacy A.; Meyer, William A.
Author Affiliation:Wang: Postdoctoral Research Associate; Huang: Associate Professor; Bonos and Meyer: Department of Plant Biology and Pathology, Rutgers University, New Brunswick, New Jersey
Title:Abscisic acid accumulation in relation to drought tolerance in Kentucky bluegrass
Section:Turf management
Other records with the "Turf management" Section
Source:HortScience. Vol. 39, No. 5, August 2004, p. 1133-1137.
# of Pages:5
Publishing Information:Alexandria, VA: American Society for Horticultural Science
Keywords:TIC Keywords: Abscisic acid; Drought resistance; Poa pratensis; Electrolyte leakage; Electrolytes; Photosynthesis; Cultivars; Drought stress
Abstract/Contents:"Drought is a major factor limiting plant growth, which has been associated with the accumulation of absicsic acid (ABA) in various species. The objective of the study was to determine the relationship between ABA accumulation and drought tolerance for kentukcy bluegrass (Poa pratensis L.) during short-term drought stress. Eight kentucky bluegrass cultivars (`Midnight', `A82-204', `RSP', `Alpine', `Moonlight', `Brilliant', `Washington', and `Baruzo') were subjected to drought stress in a growth chamber. Water relations, gas exchange rate, and ABA content of leaves were determined at various times during drought stress. Turf quality decreased with drought duration for all eight cultivars. Leaf ABA content increased lineraly with drought stress within 11 days of treatment; the rate of the increase was negatively related to the rate of turf quality decline. The rate of ABA accumulation during drought stress was positively correlated with the rates of decrease in turf quality (r2 = 0.6346), increase in electrolyte leakage (r2 = 0.7128), and decrease in relative water content (r2 = 0.5913). There were highly significant negative correlations between ABA content and leaf water potential (r2 = 0.9074), stomatal conductance (rt2 = 0.6088), transpiration rate (r2 = 0.6581), net photosynthesis rate (r2 = 0.6956), and a positive correlation between ABA content and electrolyte leakage (r2 = 0.7287). The results indicate that drought tolerance is negatively related to ABA accumulation during short-term drought stress. ABA accumulation in response to drought stress could be used as a metabolic factor to select for drought tolerance in kentucky bluegrass."
Language:English
References:36
Note:Tables
Graphs
See Also:Other items relating to: Disasters - Drought
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Wang, Z., B. Huang, S. A. Bonos, and W. A. Meyer. 2004. Abscisic acid accumulation in relation to drought tolerance in Kentucky bluegrass. HortScience. 39(5):p. 1133-1137.
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DOI: 10.21273/HORTSCI.39.5.1133
Web URL(s):
https://journals.ashs.org/hortsci/view/journals/hortsci/39/5/article-p1133.xml?rskey=FZePqV
    Last checked: 11/19/2019
    Requires: PDF Reader
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MSU catalog number: SB 1 .H64
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