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Web URL(s): | http://turf.rutgers.edu/research/abstracts/symposium2005.pdf#page=52 Last checked: 11/26/2007 Requires: PDF Reader |
Publication Type:
| Report |
Content Type: | Abstract or Summary only |
Author(s): | Shortell, Robert R.;
Bonos, Stacy A.;
Hart, Stephen E. |
Author Affiliation: | Department of Plant Biology and Pathology, Rutgers University |
Title: | Kentucky bluegrass cultivar response to bispyribac-sodium herbicide |
Section: | Poster presentations Other records with the "Poster presentations" Section
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Meeting Info.: | Cook College, Rutgers, NJ: January 13-14, 2005 |
Source: | Proceedings of the Fourteenth Annual Rutgers Turfgrass Symposium. 2005, p. 51. |
Publishing Information: | New Brunswick, NJ: Center for Turfgrass Science, Cook College, Rutgers, The State University of New Jersey |
# of Pages: | 1 |
Keywords: | TIC Keywords: Bispyribac-sodium; Poa pratensis; Phytotoxicity; Herbicide evaluation; Cultivar variation; Application rates; Herbicide resistance; Genetic resistance
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Abstract/Contents: | "Bispyribac-sodium herbicide can selectively control both Poa annua and P. trivialis in some cool-season turfgrass species. Kentucky bluegrass (P. pratensis L.) has typically exhibited unacceptable injury from applications of bispyribac-sodium; however, these studies only evaluated a limited number of cultivars. Currently there is no effective control of P. annua and P. trivialis in Kentucky bluegrass. The objective of this study was to determine the effects of bispyribac-sodium herbicide on several diverse Kentucky bluegrass cultivars in both field and greenhouse experiments. A greenhouse study consisting of 14 cultivars (America, Avalance, Brooklawn, Baron, Cabernet, Gnome, Langara, Lakeshore, Livingston, Midnight, Moonshadow, P-105, Sonic, and Total Eclipse) was established in a randomized complete block design with 4 replications. Four bispyribac-sodium rates (0, 120, 240, and 480 g.a.i./A) were applied to 6wk old seedlings of Kentucky bluegrass grown in containers. Percent injury was evaluated at 21 and 28 days after treatment (DAT). Plants were harvested on day 28 and both fresh weights and dry weights were recorded. Bispyribac-sodium was also applied to a replicated mowed Kentucky bluegrass turf experiment established in fall 2001, consisting of 250 cultivars and selections. Two applications (60 and 90 g.a.i./A) were applied on June 9, 2004 and July 7, 2004, respectively. Percent injury was evaluated at 7, 14, 21, and 28 DAT. A wide range of injury levels to bispyribac-sodium treatments was observed among Kentucky bluegrass cultivars. Some cultivars, such as Lakeshore and Brooklawn, exhibited a high tolerance to bispyribac-sodium treatments, while other cultivars, such as Baron and P-105, were completely killed. Such a variable response among cultivars indicates that genetic resistance may be responsible for the observed reactions. This research indicates that it may be possible to develop bispyribac-sodium tolerant Kentucky bluegrass cultivars through selection and breeding. Tolerant cultivars would provide the turfgrass industry with a post-emergent, chemical control option for P. annua and P. trivialis in Kentucky bluegrass." |
Language: | English |
References: | 0 |
Note: | This item is an abstract only! |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Shortell, R. R., S. A. Bonos, and S. E. Hart. 2005. Kentucky bluegrass cultivar response to bispyribac-sodium herbicide. Proc. Annu. Rutgers Turfgrass Symp. p. 51. |
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| Web URL(s): http://turf.rutgers.edu/research/abstracts/symposium2005.pdf#page=52 Last checked: 11/26/2007 Requires: PDF Reader |
| MSU catalog number: SB 433 .R88 |
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