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| Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/2009jou883.pdf
Last checked: 10/18/2011
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Zhang, Qi;
Fry, Jack;
Pan, Xiangqing;
Rajashekar, Channa;
Bremer, Dale;
Engelke, Milton;
Wang, Xuemin |
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| Author Affiliation: | Zhang: Department of Plant Sciences, North Dakota State University, Fargo, North Dakota; Fry, Rajashekar, and Bremer: Department of Horticulture, Forestry and Recreation Resources, Kansas State University, Manhattan, Kansas; Pan and Wang: Donald Danforth Plant Science Center, Texas A&M University, Dallas, Texas; Engelke: Agricultural Research Center, Texas A&M University, Dallas, Texas |
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| Title: | Cold acclimation of Zoysia Japonica and Z. Matrella and changes in Rhizome Abscisic acid levels |
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| Section: | Physiology and stress physiology
Other records with the "Physiology and stress physiology" Section
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| Meeting Info.: | Santiago, Chile: July 26-30 2009 |
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| Source: | International Turfgrass Society Research Journal. Vol. 11, No. Part 2, 2009, p. 883-892. |
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| Publishing Information: | Madison, WI: International Turfgrass Society |
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| # of Pages: | 10 |
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| Keywords: | TIC Keywords: Abscisic acid; Cold acclimation; Cold resistance; Rhizomes; Zoysia japonica; Zoysia matrella
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| Cultivar Names: | Meyer; Cavalier |
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| Abstract/Contents: | "Superior freezing tolerance of Zoysia japonica Steud. relative to Z. matrella (L.) Merr. has been well established in field evaluations. Our objective was to compare differences in autumn acclimation of 'Meyer' (Z. japonica) and 'Cavalier' (Z. matrella) and measure concomitant changes in rhizome abscisic acid (ABA) levels. Grasses were acclimated in the field, and sampled monthly between October and January to determine freezing tolerance and naturally occurring ABA levels in rhizomes. The LT50s (the temperature resulting in 50% of survival) in October for Cavalier (-3.0 and -4.1 °C in 2005 and 2006, respectively) were higher than those for Meyer (-7.0 and -6.5 °C in 2005 and 2006, respectively). Greatest declines in LT50s in both cultivars occurred between October and November and averaged -6.7 °C in Meyer and -5.5 °C in Cavalier. The lowest LT50 in Cavalier was observed in November (-8.5 and -9.6 °C in 2005 and 2006, respectively), one month earlier than in Meyer (-16.2 and -15.4 °C in December 2005 and 2006, respectively). Abscisic acid levels in rhizomes increased during cold acclimation in both cultivars, and pooled cultivar LT50s were correlated with rhizome ABA levels (r = -0.62, P = 0.03). Data suggest that ABA may play an important role in increasing the freezing tolerance of zoysiagrass." |
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| Language: | English |
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| References: | 37 |
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| Note: | Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Zhang, Q., J. Fry, X. Pan, C. Rajashekar, D. Bremer, M. Engelke, et al. 2009. Cold acclimation of Zoysia Japonica and Z. Matrella and changes in Rhizome Abscisic acid levels. Int. Turfgrass Soc. Res. J. 11(Part 2):p. 883-892. |
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| Web URL(s):
https://archive.lib.msu.edu/tic/its/articles/2009jou883.pdf
Last checked: 10/18/2011
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MSU catalog number: b2548899 |
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