Full TGIF Record # 185028
Item 1 of 1
DOI:10.1614/WS-D-10-00131.1
Web URL(s):http://www.bioone.org/doi/full/10.1614/WS-D-10-00131.1
    Last checked: 07/08/2011
    Access conditions: Item is within a limited-access website
http://www.bioone.org/doi/pdf/10.1614/WS-D-10-00131.1
    Last checked: 07/08/2011
    Access conditions: Item is within a limited-access website
Publication Type:
i
Refereed
Author(s):Binkholder, Kenton M.; Fresenburg, Brad S.; Teuton, Travis C.; Xiong, Xi; Smeda, Reid J.
Author Affiliation:Binkholder: Graduate Research Assistant; Fresenburg: Extension and Research Associate; Teuton: Former Assistant Professor; Xiong: Assistant Professor; Smeda: Associate Professor, Division of Plant Sciences, University of Missouri, Columbia
Title:Selection of glyphosate-resistant annual bluegrass (Poa annua) on a golf course
Source:Weed Science. Vol. 59, No. 3, July-September 2011, p. 286-289.
Publishing Information:Champaign, IL: Weed Science Society of America
# of Pages:4
Related Web URL:http://www.bioone.org/doi/abs/10.1614/WS-D-10-00131.1
    Last checked: 07/08/2011
    Notes: Abstract only
Keywords:TIC Keywords: Application rates; Dry weight; Genetic variability; Glyphosate; Herbicide resistance; Herbicide trials; Poa annua control; Regrowth studies
Abstract/Contents:"Annual bluegrass is a pervasive weed on golf courses in the Transition Zone of the United States and is difficult to selectively remove. For years, superintendents have applied glyphosate on dormant zoysiagrass to remove cool-season weeds. In 2007, a population of annual bluegrass in Columbia, MO, was not controlled with glyphosate after more than 10 yr of continuous applications. Greenhouse studies were established to compare the response of suspect glyphosate-resistant (CCMO1) and -susceptible annual bluegrass to glyphosate. Seedling plants were treated with glyphosate from 0 to 6.27 kg ae ha-1. At 21 d after treatment, reductions in biomass for susceptible annual bluegrass reached a maximum at glyphosate rates of 0.78 kg ha-1 or higher. Comparatively, the biomass of CCMO1 plants was only reduced by 50% at 0.78 kg ha-1, and reductions did not exceed 60% at rates up to 6.27 kg ha-1, which is eight times the labeled rate. At rates necessary to reduce plant dry weights by 50%, the resistance factor (RF) for CCMO1 was 5.2. Twenty-one days following biomass assessment, regrowth of plants was non-existent on susceptible plants at 0.78 kg ha-1 glyphosate or above, but CCMO1 plants reached 1.7 cm regrowth at the 6.27 kg ha-1 rate. Based on the regrowth, the RF for CCMO1 was 5.2. Results indicate a new species has been identified with resistance to glyphosate, and this represents the first report of glyphosate resistance in turfgrass."
Language:English
References:16
Note:Pictures, b/w
Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Binkholder, K. M., B. S. Fresenburg, T. C. Teuton, X. Xiong, and R. J. Smeda. 2011. Selection of glyphosate-resistant annual bluegrass (Poa annua) on a golf course. Weed Sci. 59(3):p. 286-289.
Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=185028
If there are problems with this record, send us feedback about record 185028.
Choices for finding the above item:
DOI: 10.1614/WS-D-10-00131.1
Web URL(s):
http://www.bioone.org/doi/full/10.1614/WS-D-10-00131.1
    Last checked: 07/08/2011
    Access conditions: Item is within a limited-access website
http://www.bioone.org/doi/pdf/10.1614/WS-D-10-00131.1
    Last checked: 07/08/2011
    Access conditions: Item is within a limited-access website
Find Item @ MSU
MSU catalog number: b2203399a
Find from within TIC:
   Digitally in TIC by record number.
Request through your local library's inter-library loan service (bring or send a copy of this TGIF record)