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| DOI: | 10.21273/HORTSCI.45.6.966 |
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| Publication Type:
| Refereed |
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| Author(s): | Brosnan, James T.;
Thoms, Adam W.;
Breeden, Gregory K.;
Sorochan, John C. |
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| Author Affiliation: | Department of Plant Sciences, University of Tennessee, Knoxville, TN |
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| Title: | Effects of various plant growth regulators on the traffic tolerance of 'Riviera' bermudagrass (Cynodon dactylon L.) |
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| Source: | HortScience. Vol. 45, No. 6, June 2010, p. 966-970. |
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| Publishing Information: | Alexandria, VA: American Society for Horticultural Science |
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| # of Pages: | 5 |
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| Keywords: | TIC Keywords: Application rates; Image analysis; Cynodon dactylon; Ethephon; Flurprimidol; Paclobutrazol; Plant growth regulators; Traffic damage; Traffic simulation; Trinexapac-ethyl; Visual evaluation; Wear resistance
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| Abstract/Contents: | "Data describing effects of plant growth regulator (PGR) applications on bermudagrass (Cynodon spp.) traffic tolerance are limited. A 2-year study was conducted evaluating effects of several PGRs on Riviera bermudagrass (Cynodon dactylon L.) traffic tolerance. Treatments included 1) ethephon at 3.8 kg?ha-1; 2) trinexapac-ethyl (TE) at 0.096 kg?ha-1; 3) paclobutrazol at 0.28 kg?ha-1; 4) flurprimidol at 0.0014 kg?ha-1; 5) flurprimidol + TE at 0.0014 kg?ha-1 + 0.096 kg?ha-1, respectively; 6) ethephon + TE at 3.8 kg?ha-1 + 0.096 kg?ha-1, respectively; and 7) untreated control. All treatments were applied three times on a 21-d interval before trafficking. Plots were subjected to three simulated football games per week with the Cady Traffic Simulator. Traffic began 2 weeks after the last sequential application of each PGR. Turfgrass color, quality, and cover were quantified weekly using digital image analysis. Turfgrass cover measurements were used to assess traffic tolerance. Improvements in turfgrass color, quality, and cover were observed with applications of TE, ethephon + TE, and flurprimidol + TE. Turfgrass color, quality, and cover were enhanced for ethephon + TE and flurprimidol +TE compared with applications of ethephon and flurprimidol alone. Considering that no differences in turfgrass color, quality, or cover were detected among TE, ethephon + TE, and flurprimidol + TE at any time in the study, the responses observed suggest that TE may have a greater impact than other PGRs on Riviera bermudagrass athletic field turf when applied before traffic stress. Chemical names used: rthephon (2-chloroethyl)phosphonic acid; glurprimidol {Α}-(1-methylethyl)-{Α}-[4-(trifluoro-methoxy) phenyl] 5-pyrimidine-methanol}; paclobutrazol, (+/)-(R*,R*)-Β-[(4-chlorophenyl) methyl]-{Α}-(11-dimethyl)-1H-1,2,4,-triazole-1-ethanol; trinexapac-ethyl [4-(cyclopropyl-[{Α}]-hydroxymethylene)-3,5-dioxo-cycloh carboxylic acid ethyl ester]." |
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| Language: | English |
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| References: | 47 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Brosnan, J. T., A. W. Thoms, G. K. Breeden, and J. C. Sorochan. 2010. Effects of various plant growth regulators on the traffic tolerance of 'Riviera' bermudagrass (Cynodon dactylon L.). HortScience. 45(6):p. 966-970. |
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| DOI: 10.21273/HORTSCI.45.6.966 |
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MSU catalog number: b2217685a |
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