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| Web URL(s): | http://www.newss.org/proceedings/proceedings_2005.pdf#page=105
Last checked: 07/22/2013
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Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Shortell, R. R.;
Bonos, S. A.;
Hart, S. E. |
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| Author Affiliation: | Rutgers University, New Brunswick, New Jersey |
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| Title: | Tolerance of Kentucky bluegrass cultivars to bispyribac-sodium |
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| Section: | Turfgrass and plant growth regulators
Other records with the "Turfgrass and plant growth regulators" Section
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| Meeting Info.: | Capital Hilton, Washington, D.C.: January 3-6, 2005 |
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| Source: | Proceedings: NortheasternWeed Science Society. Vol. 59, 2005, p. 91. |
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| Publishing Information: | Ithaca, NY: Northeastern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Herbicide resistance; Bispyribac-sodium; Poa pratensis; Poa annua control; Herbicide evaluation; Genetic resistance; Cultivars; Application rates; Application timing; Herbicide injury
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| Abstract/Contents: | "ispyribac-sodium is a newly emeging herbicide that can selectively control both Poa annua and P. trivialis in some cool-season turfgrass species. To date, bispyribac-sodium is locally labeled for use on creeping bentgrass (Agrostis stolonifera L.), however, there is evidence that bispyribac-sodium may have a broader utility. Kentucky bluegrass (P. pratensis L.) has exhibited unacceptable injury from applications of bispyribac-sodium however, these studies evaluated a limited number of cultivars. There are currently no herbicides that provide effective Poa annua control 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 in order to determine if there is differential tolerance to bispyribac-sodium among Kentucky bluegrass cultivars. A greenhouse study consisting of 14 cultivars (America, Avalanche, Brooklawn, Baron, Cabernet, Gnome, Langara, Lakeshore, Livingston, Midnight, Moonshadow, P-105, RL 1, and Total Eclipse) was established in a randomized complete block design with 4 replications. Four bispyribac-sodium rates (0, 120, 240, and 480 g ai/A) were applied to 6wk old seedlings of Kentucky bluegrass grown in conetainers. Percent injury was evaluated at 21 and 28 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 the fall of 2001, consisting of 250 cultivars and selections. Two applications (60 and 90 g ai/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 and other cultivars such as Baron and P-105, were completely killed. Cultivars replicated in both greenhouse and field experiments responded similarly to bispyribac-sodium in both environments. The dramatic differences between cultivars indicate that there may be some genetic resistance within the species. These results indicate that it may be possible to develop bispyribac-sodium tolerant Kentucky bluegrass cultivars through breeding. Blends of bispyribac-sodium tolerant Kentucky bluegrass cultivars could allow for the use of bispyribac-sodium for weed control with acceptable turfgrass safety." |
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| Language: | English |
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| References: | 0 |
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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):
Shortell, R. R., S. A. Bonos, and S. E. Hart. 2005. Tolerance of Kentucky bluegrass cultivars to bispyribac-sodium. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 59:p. 91. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_2005.pdf#page=105
Last checked: 07/22/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: SB 610 .N62 v. 57 |
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