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| Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/2005jou857.pdf
Last checked: 08/09/2010
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Heckman, Neil L.;
Gaussoin, Roch E.;
Horst, Garald L.;
Elowsky, Christian G. |
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| Author Affiliation: | Heckman, Gaussoin, and Horst: Department of Agronomy and Horticulture, University of Nebraska, Lincoln, Nebraska; Elowsky: School of Biological Sciences and Center of Biotechnology, University of Nebraska, Lincoln, Nebraska |
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| Title: | Growth regulator effects on cellular characteristics of two turfgrass species |
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| Section: | Physiology/stress physiology
Other records with the "Physiology/stress physiology" Section
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| Meeting Info.: | Llandudno, Wales, UK: July 10-15 2005 |
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| Source: | International Turfgrass Society Research Journal. Vol. 10, No. Part 2, 2005, p. 857-861. |
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| Publishing Information: | Aberystywth, Ceredigion, UK: International Turfgrass Society |
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| # of Pages: | 5 |
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| Keywords: | TIC Keywords: Density; Growth regulators; Cells; Trinexapac-ethyl; Mefluidide; Gibberellic acid; Biosynthesis; Festuca arundinacea; Stenotaphrum secundatum; Application rates; Cell growth; Vertical shoot growth
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| Cultivar Names: | Mustang; Raleigh |
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| Abstract/Contents: | "Trinexapac-ethyl and mefluidide are synthetic plant growth regulators (PGRs) which inhibit gibberellic acid (GA) biosynthesis. Two greenhouse experiments using tall fescue cv. Mustang (Festuca arundinacea Schreb.) and St. Augustinegrass cv. Raleigh [Stenotaphrum secundatum S. (Walt.) Kuntze] were conducted with a randomized complete block experimental design with 4 replications. Chemical applications were trinexapac-ethyl at 0.286 kg ha-1 for tall fescue and 0.145 kg ha-1 for St. Augustinegrass and mefluidide at 0.137 kg ha-1 for both species. Leaf cell density and arrangement were sampled 4, 8, 16, 32, and 48 days after treatment (DAT) using a confocal microscope. Leaf elongation rates were measured three times per week for seven weeks after chemical application. Trinexapac-ethyl and mefluidide decreased leaf elongation rate of both species by 30%. Tall fescue and St. Augustinegrass cell density increased 15 and 20%, respectively, from both PGR treatments relative to the control. These results indicate that these PGRs inhibit cell elongation. Increased cell density resulted in greater cell wall content. This has been correlated with increased wear tolerance in turfgrasses, however, PGR treated turf also has a longer recover period than nontreated turf. This may be utilized under certain cases were increased wear tolerance is more important than recovery." |
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| Language: | English |
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| References: | 31 |
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| Note: | Pictures, b/w
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Heckman, N. L., R. E. Gaussoin, G. L. Horst, and C. G. Elowsky. 2005. Growth regulator effects on cellular characteristics of two turfgrass species. Int. Turfgrass Soc. Res. J. 10(Part 2):p. 857-861. |
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| Web URL(s):
https://archive.lib.msu.edu/tic/its/articles/2005jou857.pdf
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Requires: PDF Reader |
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MSU catalog number: SB 433 .I52 v. 10 |
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