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| DOI: | 10.1614/WS-D-14-00183.1 |
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| Web URL(s): | http://www.bioone.org/doi/full/10.1614/WS-D-14-00183.1
Last checked: 09/21/2015
Access conditions: Item is within a limited-access website
http://www.bioone.org/doi/pdf/10.1614/WS-D-14-00183.1
Last checked: 09/21/2015
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Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | McCullough, Patrick E.;
Yu, Jialin;
Shilling, Donn G.;
Czarnota, Mark A.;
Johnston, Christopher R. |
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| Author Affiliation: | McCullough: Associate Professor; Yu: Postdoctoral Researcher; Shilling: Professor; Johnston; Graduate Assistant; Crop and Soil Science Department; Czarnota: Associate Professor, Department of Horticulture, University of Georgia, Griffin, GA |
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| Title: | Biochemical effects of imazapic on bermudagrass growth regulation, broomsedge (Andropogon virginicus) control, and MSMA antagonism |
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| Section: | Physiology, chemistry, and biochemistry
Other records with the "Physiology, chemistry, and biochemistry" Section
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| Source: | Weed Science. Vol. 63, No. 3, July-September 2015, p. 596-603. |
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| Publishing Information: | Champaign, Illinois: Weed Science Society of America |
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| # of Pages: | 8 |
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| Related Web URL: | http://www.bioone.org/doi/abs/10.1614/WS-D-14-00183.1
Last checked: 09/21/2015
Notes: Abstract only |
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| Keywords: | TIC Keywords: Andropogon virginicus; Antagonism; Cynodon; Growth regulator evaluation; Imazapic; Invasive weeds; MSMA; Plant growth regulators; Roadside turf; Weed control
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| Geographic Terms: | Georgia |
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| Abstract/Contents: | "Broomsedge populations have increased substantially over the last decade on roadsides in Georgia. The invasiveness of this species might have resulted from imazapic use for bermudagrass growth regulation and the limited use of MSMA on roadsides. The objectives of this research were to evaluate (1) differential growth inhibition of bermudagrass and broomsedge to imazapic, (2) susceptibility of isolated acetolactate synthase (ALS) enzymes of bermudagrass and broomsedge to imazapic, (3) broomsedge control with tank mixtures of imazapic with MSMA, and (4) the influence of imazapic on absorption and translocation of 14C-MSMA. In greenhouse experiments, imazapic reduced bermudagrass shoot biomass ~ 2 times more from the nontreated than broomsedge. Isolated ALS enzymes of bermudagrass were ~ 100 times more susceptible to inhibition by imazapic than broomsedge. In field experiments, imazapic provided no control of broomsedge, but MSMA alone controlled broomsedge 81% at 12 mo after initial treatments (MAIT). Broomsedge control was reduced to 45% when MSMA was tank mixed with imazapic at 12 MAIT. In laboratory experiments, imazapic tank mixtures did not reduce broomsedge absorption or translocation of 14C-MSMA. Overall, bermudagrass is more susceptible to imazapic due to greater target-site inhibition than broomsedge. Results emphasize the importance of MSMA use for broomsedge control, but agronomists should avoid tank mixtures with imazapic to reduce potential antagonism." |
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| Language: | English |
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| References: | 26 |
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| Note: | Equations
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
McCullough, P. E., J. Yu, D. G. Shilling, M. A. Czarnota, and C. R. Johnston. 2015. Biochemical effects of imazapic on bermudagrass growth regulation, broomsedge (Andropogon virginicus) control, and MSMA antagonism. Weed Sci. 63(3):p. 596-603. |
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| DOI: 10.1614/WS-D-14-00183.1 |
| Web URL(s):
http://www.bioone.org/doi/full/10.1614/WS-D-14-00183.1
Last checked: 09/21/2015
Access conditions: Item is within a limited-access website
http://www.bioone.org/doi/pdf/10.1614/WS-D-14-00183.1
Last checked: 09/21/2015
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: b2203399a |
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