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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2008 Proceedings-SWSS.pdf#page=160
Last checked: 07/24/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | McCauley, R. K.;
McCarty, L. B.;
Liu, H.;
Toler, J. E. |
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| Author Affiliation: | Department of Horticulture, Clemson University, Clemson, SC |
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| Title: | Optimum spring ryegrass (Lolium perenne L.) transition using cultural & chemical options |
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| Section: | Weed management in turf
Other records with the "Weed management in turf" Section
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| Meeting Info.: | Jacksonville, Florida: January 27-30, 2008 |
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| Source: | 2008 Proceedings, Southern Weed Science Society. Vol. 61, 2008, p. 97. |
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| Publishing Information: | Champaign, Illinois: Southern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Chemical management; Cultural methods; Cynodon dactylon; Lolium perenne; Overseeding; Overseeding competition; Spring green-up; Spring transition; Trifloxysulfuron
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| Abstract/Contents: | "Bermudagrass is often overseeded with perennial ryegrass to maintain its aesthetic value during dormancy. However, newer varieties of perennial ryegrass fail to timely transition back to the bermudagrass base and may linger throughout the summer. Unchecked perennial ryegrass effectively overshadows the bermudagrass base delaying spring green-up and promoting stand decline. Therefore, from April to July 2007, a study was conducted evaluate combinations of mowing height, fertilizer rate, and trifloxysulfuron timing and rate for best spring transition from overseeded ryegrass back to permanent bermudagrass base. The study was arranged as a split plot design with completely randomized subplots. Whole plot treatments included mowing heights at either 0.5 or 1.0-inch (1.2 or 2.5 cm) and 0.375 or 0.75 lbs N 1,000 ft2 week-1 (24.4 or 48.8 kg N ha-1) fertilizer rates. Meanwhile subplot treatments included trifloxysulfuron at either 0.1 or 0.3 oz acre-1 and mid-April or mid-May application dates. Visual ratings taken throughout the study included turf quality and percent ryegrass density. Turf quality was rated on a 1 to 9 scale, where 1 = poor turf, 9 = excellent turf, and < 7 was deemed unacceptable. Meanwhile, percent ryegrass density was rated on a 0-100% scale with 0 = no ryegrass and 100 = complete ryegrass coverage. Trifloxysulfuron treatments were applied on either April 13 or May 15, and all treatments received a non-ionic surfactant at 0.25% V/V. All control plots and 0.5 in. mowing height + 0.75 lbs. N wk -1 fertility rate + low May trifloxysulfuron treatments provided acceptable (>7) turf quality throughout 2007. On July 1, 2007, all trifloxysulfuron treatments had 0% ryegrass and 100% bermudagrass coverage; meanwhile, 0.5 and 1.0 in. control plots had 21 and 35% less bermudagrass coverage versus treated plots in July. Future research at Clemson University will evaluate new and existing products as spring transition aids including the use of different combinations of treatments and cultural practices at various timing. The allelopathic potential of perennial ryegrass on bermudagrass will also be evaluated in future green house studies." |
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| Language: | English |
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| References: | 0 |
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| See Also: | Original version appears in Abstracts: 2007 International Annual Meetings [ASA/CSSA/SSSA], 2007, p. [1], R=132248. R=132248 |
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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):
McCauley, R. K., L. B. McCarty, H. Liu, and J. E. Toler. 2008. Optimum spring ryegrass (Lolium perenne L.) transition using cultural & chemical options. South. Weed Sci. Soc. Proc. 61:p. 97. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2008 Proceedings-SWSS.pdf#page=160
Last checked: 07/24/2013
Requires: PDF Reader
Notes: Item is within a single large file |
| 
MSU catalog number: b2207931 |
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