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DOI: | 10.21273/HORTSCI.39.2.398 |
Web URL(s): | https://journals.ashs.org/hortsci/view/journals/hortsci/39/2/article-p398.xml?rskey=FZePqV Last checked: 11/19/2019 Requires: PDF Reader |
Publication Type:
| Refereed |
Author(s): | Williams, D. W.;
Burrus, P. B. |
Author Affiliation: | Williams: Assistant Professor, Department of Agronomy, University of Kentucky, Lexington, Kentucky; Burrus: Research Specialist, Department of Agronomy, University of Kentucky, Lexington, Kentucky |
Title: | Conversion of perennial ryegrass to bermudagrass using seeded cultivars, herbicides, and plant growth regulators |
Section: | Turf management Other records with the "Turf management" Section
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Source: | HortScience. Vol. 39, No. 2, April 2004, p. 398-402. |
Publishing Information: | Alexandria, VA: American Society for Horticultural Science |
# of Pages: | 5 |
Keywords: | TIC Keywords: Lolium perenne; Cynodon; Growth regulators; Gray leaf spot; Glyphosate; Seed propagated bermudagrasses; Cynodon dactylon; Pronamide; Trinexapac-ethyl; Ethephon; Paclobutrazol; Flurprimidol; Turfgrass quality; Cold resistance
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Cultivar Names: | Mirage; Yukon |
Abstract/Contents: | "Perennial ryegrass (PR) (Lolium perenne L.) is often used as a low-mowed turf in the transition climatic zone. However, control of the fungal disease gray leaf spot (Pyricularia grisea (Cooke) Sacc.) has drasically increased the cost of PR management. Seeded bermudagrasses (SB) [Cynodon dactylon (L.) Pers.] are viable options for turfgrass management operations with limited pesticide budgets. Field trials in 2000 and 2001 tested the effects of two herbicides and several plant growth regulators (PGR) during renovation of mature PR to either of two cultivars of SB. The herbicides glyphosate and pronamide, and the PGR's trinexapac-ethyl, ethephon, paclobutrazol, and flurprimidol were applied at label rates to mature stands of PR. `Mirage' and `Yukon' SB were seeded separately either 1 or 7 days after applications (DAA) of chemicals. SB establishment, first-winter survival, and turfgrass quality (TQ) were rated and compared to an untreated control. Results indicated that only applications of glyphosate resulted in acceptable renovation of PR to SB, but also resulted in significantly lower (P < 0.05) TQ during the transition. Applications of pronamide resulted in significantly less (P < 0.05) SB transition than did applications of glyphosate, but pronamide plots maintained higher TQ. None of the PRG treatements [treatments] had a significant effect (P < 0.05) on SB transition. There were no consistent significant effects (P < 0.05) due to DAA among any of the chemicals evaluated. First-winter survival was significantly higher (P < 0.05) with `Yukon' than with `Mirage' in both years. We conclude that among the chemicals tested, only applications of glyphosate resulted in acceptable transition of PR to SB, but a significant reduction of TQ should be expected during the transition." |
Language: | English |
References: | 16 |
See Also: | Other items relating to: P G Rs 1997-2006 |
Note: | Tables |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Williams, D. W., and P. B. Burrus. 2004. Conversion of perennial ryegrass to bermudagrass using seeded cultivars, herbicides, and plant growth regulators. HortScience. 39(2):p. 398-402. |
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| DOI: 10.21273/HORTSCI.39.2.398 |
| Web URL(s): https://journals.ashs.org/hortsci/view/journals/hortsci/39/2/article-p398.xml?rskey=FZePqV Last checked: 11/19/2019 Requires: PDF Reader |
| MSU catalog number: SB 1 .H64 |
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