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| Web URL(s): | http://www.newss.org/proceedings/proceedings_2000_vol54.pdf#page=100
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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| Content Type: | Abstract or Summary only |
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| Author(s): | Watschke, T. L.;
Borger, J. A. |
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| Author Affiliation: | Watschke: Professor, Department of Agronomy, Pennsylvania State University, University Park, PA; Borger: Research Assistant, Pennsylvania State University, University Park, PA |
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| Title: | Ethofumesate resistant creeping bentgrass? |
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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.: | Baltimore, MD: January 3-6, 2000 |
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| Source: | Proceedings of the 54th Annual Meeting of the Northeastern Weed Science Society. Vol. 54, 2000, p. 100. |
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| Publishing Information: | College Park, MD: Northeastern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Ethofumesate; Herbicide resistance; Agrostis stolonifera; Golf fairways; Phytotoxicity; Inheritance
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| Abstract/Contents: | "In November of 1993, a patch of creeping bentgrass growing in a golf course fairway that had been subject to a total of twelve applications of ethofumesate at 0.5 lbs ai/A from 1989 to 1993 was sampled for identification and plant increase purposes. Twelve three-quarter inch plugs were removed from the patch and were transferred to a greenhouse and potted in four-inch pots. A positive identification for creeping bentgrass was made and the plugs were grown in the pots until September of 1994. At that time, a portion of the bentgrass in each pot was transferred to a flat and allowed to increase as was the turf that remained in the pot. Another portion from each pot was planted in the field to assess seed production potential. By March of 1995, the pots had filled in and a phytotoxicity study was conducted using rates of ethofumesate that ranged from 1.5 to 12.5 lbs ai/A from a single application. No phytotoxicity was observed. In April of 1996, the bentgrass in the flats was harvested by cutting stolons (with three to four nodes) with a [pair of] shears and placing them in water. After all the flats were harvested, the stolons were transferred to the Valentine Research Center where an eight hundred square foot area was stolonized using the harvested material. Later in 1996, the first seed was harvested from plants space planted in 1994. this seed was used to establish 12 (one for each original flat) plots in an area adjacent to the sprigged plot. In October of 1996, a phytotoxicity experiment was conducted on the sprigged plots. Ethofumesate was applied in October and twice in November at rates ranging from 1 to 4 lbs ai/A for each application. Phytotoxicity was rated in the spring of 1997 and none was found. Also in 1997, more plot area was established using stolons for one area and a blend of the seed from all twelve sources (each pot) for the other area. Research on this area, which contains plots of five other creeping bentgrasses (all commercially available) and locally produced annual bluegrass is under the direction of Dr. David Huff, Penn State's turfgrass breeder. Experiments are currently under way to further document the degree of apparent resistance that the selected creeping bentgrass possesses. In addition, research will be conducted soon to ascertain whether the observed resistance/tolerance has a genetic basis that could be transferable." |
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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):
Watschke, T. L., and J. A. Borger. 2000. Ethofumesate resistant creeping bentgrass?. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 54:p. 100. |
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| Choices for finding the above item: |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_2000_vol54.pdf#page=100
Last checked: 07/24/2013
Requires: PDF Reader
Notes: Item is within a single large file |
| 
MSU catalog number: SB 610 .N62 v. 54 |
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