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| DOI: | 10.2134/itsrj2016.05.0427 |
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| Web URL(s): | https://dl.sciencesocieties.org/publications/its/articles/13/1/421
Last checked: 10/11/2019
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Wu, Y.;
Chandra, A.;
Genovesi, A. D.;
Meeks, M. |
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| Author Affiliation: | Texas A&M AgriLife Research, Dallas, TX |
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| Title: | Freezing tolerance of field- and growth chamber-acclimated zoysiagrass hybrids |
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| Section: | Genetics and breeding
Other records with the "Genetics and breeding" Section
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| Meeting Info.: | New Brunswick, New Jersey: July 16-21, 2017 |
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| Source: | International Turfgrass Society Research Journal. Vol. 13, 2017, p. 1-6. |
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| Publishing Information: | s.l.: International Turfgrass Society |
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| # of Pages: | 6 |
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| Keywords: | TIC Keywords: Acclimatization; Cold resistance; Comparisons; Cultivar evaluation; Hybrids; Zoysia; Zoysia matrella; Zoysia minima; Zoysia pauciflora
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| Abstract/Contents: | "The objective of this study was to test the freezing tolerance of a medium-fine textured ecotype (DALZ 1301) of zoysiagrass (Zoysia spp.) and six fine-textured interspecific hybrids (DALZ 1304- 1309) derived from crosses between Z. minima (Colenso) Zoltov. or Z. pauciflora (Mez.) and Z. matrella (L.) Merr. after cold acclimation under field (FE-1 and FE-2) and controlled-environment conditions (GC-1 and GC-2) in 2014 and 2015. Following acclimation, samples were subjected to six freezing treatments (-3, -5, -7, -9, -11, and -13°C) for 1 h, thawed, and placed under optimum greenhouse conditions for recovery. Greenup was visually rated on a 1 to 9 scale (1 = brown; 9 = completely green; 5 = acceptable) at 5 wk. Lethal temperatures (LT50) for each geno-type were determined by nonlinear regression. Mean LT50 for field-acclimated samples ranged from -5.5°C (DALZ 1307) to -9.3°C (Meyer). Mean LT50for controlled-acclimation samples ranged from -1.6°C (DALZ 1304) to -9.9°C (Meyer) in GC-1 and from -4.8°C (DALZ 1304) to -9.4°C (Meyer) for GC-2. The LT50 of DALZ 1301 and Meyer were statistically similar, but interspecific hybrids were less freeze tolerant than Meyer. Results suggest a limited potential of Z. minima, Z. pauciflora, and Z. matrella lines to impart freezing tolerance. Additionally, high correlations (R2 = 0.718-0.767) of lethal temperatures with field and controlled acclimation experiments, suggest controlled-environment acclimation is suitable for testing freezing tolerance in zoysia." |
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| Language: | English |
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| References: | 33 |
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| Note: | TIC-hosted web link available 2 years after publication date.
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Wu, Y., A. Chandra, A. D. Genovesi, and M. Meeks. 2017. Freezing tolerance of field- and growth chamber-acclimated zoysiagrass hybrids. Int. Turfgrass Soc. Res. J. 13:p. 1-6. |
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| DOI: 10.2134/itsrj2016.05.0427 |
| Web URL(s):
https://dl.sciencesocieties.org/publications/its/articles/13/1/421
Last checked: 10/11/2019
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: b2394179 |
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