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Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2013 Proceedings-SWSS.pdf#page=237 Last checked: 08/12/2013 Requires: PDF Reader Notes: Item is within a single large file |
Publication Type:
| Report |
Author(s): | Straw, C. M.;
Henry, G. M.;
Cooper, T.;
Beck, L. |
Author Affiliation: | Straw and Henry: University of Georgia, Athens, GA; Cooper and Beck: Texas Tech University, Lubbock, TX |
Title: | Tolerance of perennial ryegrass overseeding to residual activity of Tribute Total |
Section: | Graduate student oral paper contest Other records with the "Graduate student oral paper contest" Section
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Meeting Info.: | Houston, Texas: January 28-30, 2013 |
Source: | Proceedings of the Southern Weed Science Society: 66th Annual Meeting. Vol. 66, 2013, p. 150. |
Publishing Information: | Champaign, Illinois: Southern Weed Science Society |
# of Pages: | 1 |
Keywords: | TIC Keywords: Application timing; Establishment; Evaluations; Festuca arundinacea; Herbicide rates; Lolium perenne; Overseeding; Residual effects
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Cultivar Names: | Tribute |
Abstract/Contents: | "Research was conducted from August to December 2011 on a common bermudagrass [Cynodon dactylon (L.) Pers.] fairway at Reese Golf Course (Lubbock, TX) and a 'Tifway 419' hybrid bermudagrass (Cynodon dactylon x. C. transvaalensis Burtt-Davy) fairway at the Rawls Golf Course (Lubbock, TX). Plots were arranged in a 2 x 4 factorial within a randomized complete block design with four replications. The main factor was herbicide rate and the sub-factor was application timing [weeks before overseeding (WBO)]. Treatments included thiencarbazone + foramsulfuron + halosulfuron (Tribute Total) at 136 and 271 g ai ha-1 + MSO at 0.5% v/v applied on August 15, 2011 (8 WBO), August 29, 2011 (6 WBO), September 12, 2011 (4 WBO), and September 26, 2011 (2 WBO). Treatments were applied to 1.5 x 1.5 m plots with a CO2 powered boom sprayer equipped with XR8004VS nozzle tips calibrated to deliver 375 L ha-1 at 221 kPa. The entire experimental area was overseeded with perennial ryegrass (Lolium perenne L.) at 392 kg ha-1 on October 10, 2011. The research area was verticut in two directions to a depth of 0.6 cm to open the canopy for overseeding without disturbing the soil profile. Perennial ryegrass seed was broadcast in two directions using a shaker jar. Perennial ryegrass cover was evaluated bi-monthly through December 2011 using digital image analysis. As Tribute Total rate increased and applications were made closer to overseeding, perennial ryegrass establishment decreased. Untreated check plots exhibited 80% perennial ryegrass cover on December 14, 2011. Similar ryegrass cover (75% to 76%) was observed on December 14, 2011 in plots sprayed with Tribute Total at 136 g ai ha-1 applied 6 and 8 WBO, respectively. Ryegrass cover in response to Tribute Total at 136 g ai ha-1 applied 4 and 2 WBO was 45 and 36%, respectively. No Tribute Total treatment at the 271 g ai ha-1 rate exhibited similar ryegrass cover to the untreated check, regardless of application timing. Ryegrass cover in response to Tribute Total at 271 g ai ha-1 applied 8, 6, 4, and 2 WBO was 54%, 40%, 43%, and 16%, respectively. Applications of Tribute Total may be limited to rates of 136 g ai ha-1 made 6 WBO when utilized in overseeded bermudagrass turf in order to avoid reductions in perennial ryegrass establishment." |
Language: | English |
References: | 0 |
Note: | This item is an abstract only! |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Straw, C. M., G. M. Henry, T. Cooper, and L. Beck. 2013. Tolerance of perennial ryegrass overseeding to residual activity of Tribute Total. South. Weed Sci. Soc. Proc. 66:p. 150. |
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| Web URL(s): http://www.swss.ws/wp-content/uploads/docs/2013 Proceedings-SWSS.pdf#page=237 Last checked: 08/12/2013 Requires: PDF Reader Notes: Item is within a single large file |
| MSU catalog number: b2207931 |
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