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| DOI: | 10.1614/WT-05-010R2.1 |
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| Web URL(s): | http://www.bioone.org/doi/pdf/10.1614/WT-05-010R2.1
Last checked: 03/15/2010
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http://www.bioone.org/perlserv/?request=get-document&doi=10.1614%2FWT-05-010R2.1
Last checked: 09/05/2007 |
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| Publication Type:
| Refereed |
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| Author(s): | McCullough, Patrick E.;
Hart, Stephen E. |
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| Author Affiliation: | McCullough: Program Associate; Hart: Associate Professor, Department of Plant Biology and Pathology, Rutgers University, New Brunswick, New Jersey |
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| Title: | Temperature influences creeping bentgrass (Agrostis stolonifera) and annual bluegrass (Poa annua) response to bispyribac-sodium |
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| Section: | Research
Other records with the "Research" Section
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| Source: | Weed Technology. Vol. 20, No. 3, July-September 2006, p. 728-732. |
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| Publishing Information: | Champaign, IL: Weed Science Society of America. |
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| # of Pages: | 5 |
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| Keywords: | TIC Keywords: Agrostis stolonifera; Poa annua control; Bispyribac-sodium; Postemergence herbicides; Temperatures; Herbicide evaluation
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| Abstract/Contents: | "Bispyribac-sodium is a POST herbicide that selectively controls annual bluegrass in creeping bentgrass, but inconsistent results with seasonal applications are believed to occur from temperature influences on bispyribac-sodium efficacy. Growth chamber experiments at the New Jersey Experimental Greenhouse Research Complex, New Brunswick, NJ, investigated three temperature regimes on 'L-93' creeping bentgrass and annual bluegrass responses to bispyribac-sodium. Annual bluegrass and creeping bentgrass exhibited contrasting responses to bispyribac-sodium as temperature increased from 10 to 30 C. Regressions of 4 week after treatment (WAT) data revealed as temperature increased from 10 to 30 C, required bispyribac-sodium rates for 50% clipping reduction (CR50) of annual bluegrass decreased from 85 to 31 g ai/ha and required rates for 50% leaf chlorosis decreased from greater than 296 to 98, indicating increased herbicidal efficacy at higher temperatures. In contrast, required bispyribac-sodium rates for creeping bentgrass CR50 increased from 200 to greater than 296 as temperature increased from 10 to 30 C. Bispyribac-sodium discolored creeping bentgrass 0 to 20% at 20 and 30 C and discoloration increased 10 to 50% at 10 C. Thus, warmer temperatures (20 and 30 C) increase bispyribac-sodium efficacy for annual bluegrass control with minimal bentgrass discoloration; however, cooler temperatures (10 C) have minimal efficacy on annual bluegrass and increase bentgrass chlorosis." |
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| Language: | English |
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| References: | 16 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
McCullough, P. E., and S. E. Hart. 2006. Temperature influences creeping bentgrass (Agrostis stolonifera) and annual bluegrass (Poa annua) response to bispyribac-sodium. Weed Technol. 20(3):p. 728-732. |
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| DOI: 10.1614/WT-05-010R2.1 |
| Web URL(s):
http://www.bioone.org/doi/pdf/10.1614/WT-05-010R2.1
Last checked: 03/15/2010
Requires: PDF Reader
Access conditions: Item is within a limited access website
http://www.bioone.org/perlserv/?request=get-document&doi=10.1614%2FWT-05-010R2.1
Last checked: 09/05/2007 |
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MSU catalog number: SB 610 .W44 |
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