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| DOI: | 10.1002/its2.6 |
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| Web URL(s): | https://onlinelibrary.wiley.com/doi/10.1002/its2.6
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| Publication Type:
| Refereed |
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| Author(s): | DaCosta, Michelle;
Ebdon, J. Scott;
Miele, Kevin;
Bernstein, Rachael P.;
Inguagiato, John C. |
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| Author Affiliation: | DaCosta, Ebdon, and Bernstein: Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA; Miele and Inguagiato: Department of Plant Science and Landscape Architecture, University of Connecticut, Storrs, CT |
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| Title: | Plant growth regulator effects on winter hardiness of annual bluegrass putting green turf |
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| Section: | Turfgrass physiology
Other records with the "Turfgrass physiology" Section
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| Source: | International Turfgrass Society Research Journal. Vol. 14, No. 1, June 2022, p. 225-235. |
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| Publishing Information: | s.l.: International Turfgrass Society |
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| # of Pages: | 11 |
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| Abstract/Contents: | "Cold deacclimation sensitivity has been cited as an important factor associated with winterkill susceptibility of annual bluegrass (Poa annua L.). Increased potential for deacclimation for this species has been attributed to higher metabolic activities in response to warm winter temperatures. We hypothesized that using plant growth regulators to inhibit turfgrass growth and metabolism during winter months could potentially suppress premature deacclimation and increase survival of annual bluegrass. The specific objectives of this study were to examine the effects of varying rates of autumn-applied trinexapac-ethyl (TE) and prohexadione-Ca (PC) on winter hardiness and spring recovery of an annual bluegrass putting green. The study was conducted over the winters of 20152016 and 20162017. Treatments included an untreated control and four rates of TE (0.05, 0.10, 0.2, and 0.4 kg a.i. ha-1) and PC (0.06, 0.12, 0.25, and 0.50 kg a.i. ha-1). Freezing tolerance was assessed based on controlled freeze tests to estimate the lethal temperature resulting in 50% regrowth (LT50). General turfgrass health was also assessed based on visual turf quality and normalized difference vegetation index (NDVI). Late-autumn PGR applications impacted the freezing tolerance of annual bluegrass during Year 1, but no treatment effects were detected in Year 2. Plant growth regulator treated turf, pooled over chemicals and rates, exhibited lower freezing tolerance (Year 1), turf quality, and NDVI (Years 1 and 2) compared to untreated turf particularly at the higher application rates. By the end of May in both years, all treatments recovered to the same levels." |
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| Language: | English |
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| References: | 33 |
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| See Also: | Original version appears in ASA, CSSA and SSSA International Annual Meetings, 2016, p. 102645, R=278169. R=278169 |
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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):
DaCosta, M., J. S. Ebdon, K. Miele, R. P. Bernstein, and J. C. Inguagiato. 2022. Plant growth regulator effects on winter hardiness of annual bluegrass putting green turf. Int. Turfgrass Soc. Res. J. 14(1):p. 225-235. |
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| DOI: 10.1002/its2.6 |
| Web URL(s):
https://onlinelibrary.wiley.com/doi/10.1002/its2.6
Last checked: 08/30/2022
Requires: HTML5
Access conditions: Item is within a limited-access website
https://onlinelibrary.wiley.com/doi/epdf/10.1002/its2.6
Last checked: 08/30/2022
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https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/its2.6
Last checked: 08/30/2022
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Access conditions: Item is within a limited-access website |
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MSU catalog number: b2394179 |
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