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| Web URL(s): | http://a-c-s.confex.com/crops/2009am/webprogram/Paper55376.html
Last checked: 01/18/2010 |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Kauffman, John M.;
Sorochan, John;
Brosnan, James;
Kopsell, Dean |
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| Author Affiliation: | Univ. of Tennessee, Knoxville, TN |
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| Title: | Freeze tolerance differences and impact of late season nitrogen and PGRs on warm-season putting green species |
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| Section: | Graduate student oral competition: IV
Other records with the "Graduate student oral competition: IV" Section
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| Meeting Info.: | Pittsburgh, PA: November 1-5, 2009 |
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| Source: | 2009 International Annual Meetings: [Abstracts][ASA-CSSA-SSSA]. 2009, p. 55376. |
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| Publishing Information: | [Madison, WI]: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Cold resistance; Cultivar evaluation; Cynodon dactylon; Cynodon transvaalensis; Fall fertilization; Golf greens; Nitrogen fertilization; Paspalum vaginatum; Plant growth regulators; Spring green-up; Temperatures; Transition zone; Zoysia japonica
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| Cultivar Names: | Champion; SeaDwarf; TifEagle; Diamond |
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| Abstract/Contents: | "A relative lack of cold hardiness and early onset of dormancy are deterrents to widespread use of warm-season turfgrass species for putting greens in the transition zone. Few studies have been conducted to determine the minimum temperatures at which warm-season putting green species can survive. Additionally, limited information is available regarding the role of nitrogen fertility and plant growth regulators (PGRs) in prolonging green color in the fall and enhancing winter survival. As such, this study was conducted to determine the freeze tolerance of four warm-season cultivars for putting green use in the transition zone and assess the impacts of late-season nitrogen and PGR applications on fall color retention and winter survival on those same cultivars. This study was conducted in a cold stress simulator and in the field in Knoxville, TN. 'Champion' and 'TifEagle' bermudagrass (Cynodon dactylon traansvalensis Burtt-Davy), 'SeaDwarf" seashore paspalum (Paspalum vaginatum), and 'Diamond' zoysiagrass (Zoysia matrella) were established in cone-tainers and on a sand-based rootzone. In the field, final Nitrogen applications for the season were made on 15 August, 15 September, and 15 October, with and without monthly trinexepac-ethyl applications. In the cold chamber, 'Diamond' zoysiagrass was more cold hardy than both 'Champion' bermudagrass and 'SeaDwarf' seashore paspalum, but was not different than 'TifEagle' bermudagrass. In the field, later N applications prolonged turf color in the fall and hastened greenup in the spring for all varieties except 'Diamond' Zoysiagrass." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Kauffman, J. M., J. Sorochan, J. Brosnan, and D. Kopsell. 2009. Freeze tolerance differences and impact of late season nitrogen and PGRs on warm-season putting green species. Int. Ann. Meet. p. 55376. |
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Last checked: 01/18/2010 |
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