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Web URL(s): | http://www.wsweedscience.org//wp-content/uploads/proceedings-archive/2004.pdf#page=29 Last checked: 12/10/2013 Requires: PDF Reader Notes: Item is within a single large file |
Publication Type:
| Report |
Content Type: | Abstract or Summary only |
Author(s): | Perez-Jones, Alejandro;
Park, Kee-Woong;
Colqhhoun [Colquhoun], Jed;
Mallory-Smith, Carol |
Author Affiliation: | Crop Science Building, Oregon State University, Corvallis, Oregon |
Title: | Glyphosate-resistant Lolium multiflorum in Oregon |
Section: | Weeds of agronomic crops Other records with the "Weeds of agronomic crops" Section
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Meeting Info.: | Colorado Springs, Colorado: March 9-11, 2004 |
Source: | Proceedings of the Western Society of Weed Science. Vol. 57, 2004, p. 27. |
Publishing Information: | Newark, CA: Western Society of Weed Science |
# of Pages: | 1 |
Keywords: | TIC Keywords: Herbicide resistance; Genes; Lolium multiflorum; Glyphosate; Biomass
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Geographic Terms: | Oregon |
Abstract/Contents: | "A suspected glyphosate-resistant Lolium multiflorum population was collected from a filbert orchard near Portland, OR. Glyphosate was applied multiple times per year for about 15 years in the orchard. Greenhouse studies were conducted to determine if this population was glyphosate-resistant. The plants were sprayed with glyphosate (13 to 3370 g ae/ha) 14 days after planting using an overhead compressed air sprayer calibrated to deliver 187 L/ha. Aboveground biomass was harvested 3 weeks after herbicide treatment, dried at 70 C for 48 h and weighed. Biomass data are reported as percent of untreated control. The study was conducted twice. At 421 g ae/ha, biomass of the susceptible biotype was reduced by 95%, while that from the resistant biotypes was only reduced by 25%. This level of resistance is similar to that reported from a glyphosate-resistant population from Chile. The mechanism of resistance is still unknown. However, no amino acid change was found after the EPSPS gene was amplified and sequenced." |
Language: | English |
References: | 0 |
Note: | "This article appears as abstract only." |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Perez-Jones, A., K. -W. Park, J. Colqhhoun [Colquhoun], and C. Mallory-Smith. 2004. Glyphosate-resistant Lolium multiflorum in Oregon. Proc. West. Soc. Weed Sci. 57:p. 27. |
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| Web URL(s): http://www.wsweedscience.org//wp-content/uploads/proceedings-archive/2004.pdf#page=29 Last checked: 12/10/2013 Requires: PDF Reader Notes: Item is within a single large file |
| MSU catalog number: SB 610 .W43 v.49 |
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