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| Web URL(s): | https://scisoc.confex.com/scisoc/2016am/webprogram/Paper100873.html
Last checked: 11/21/2016 |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Richard, Michael;
McCurdy, James D.;
Baldwin, Brian S.;
Morrison, Jesse |
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| Author Affiliation: | Richardson and McCurdy: Mississippi State University, Mississippi State, MS; Baldwin and Morrison: Plant and Soil Sciences, Mississippi State University, Mississippi State, MS |
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| Title: | Effect of preemergent herbicide timing on safety and germination of native grasses |
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| Section: | Applied pest management (student competition)
Other records with the "Applied pest management (student competition)" Section
C05 turfgrass science
Other records with the "C05 turfgrass science" Section
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| Meeting Info.: | Phoenix, Arizona: November 6-9, 2016 |
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| Source: | ASA, CSSA and SSSA International Annual Meetings. 2016, p. 100873. |
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| Publishing Information: | [Milwaukee, Wisconsin]: [American Society of Agronomy and the Entomological Society of America] |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Andropogon gerardii; Elymus canadensis; Elymus virginicus; Germination; Herbicide evaluation; Herbicide timing; Native grasses; Panicum virgatum; Preemergence herbicides; Schizachyrium scoparium; Sorghastrum nutans; Tridens flavus
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| Abstract/Contents: | "Research was conducted to evaluate the effects of herbicides and application timing upon warm and cool season native grasses commonly sown on Southeastern US golf courses. The experiment was a completely randomized design (4 replications). Treatments included atrazine (1.12 kg ai ha-1), prodiamine (0.596 kg ai ha-1), dithiopyr (0.56 kg ai ha-1), isoxaben (1.12 kg ai ha-1), pronamide (1.16 kg ai ha-1), pendimethalin (1.66 kg ai ha-1), metolachlor (2.78 kg ai ha-1), simazine (2.24 kg ai ha-1), topramezone (0.037 kg ai ha-1), liquid and granular applied oxadiazon (2.24 kg ai ha-1), indaziflam (0.0327 kg ai ha-1), flumioxazin (0.286 kg ai ha-1), mesotrione (0.28 kg ai ha-1), dimethenamid (1.68 kg ai ha-1), and a non-treated check. Grasses evaluated were Andropogon gerardii, Elymus canadensis, Elymus glabriflorus, Elymus virginicus, Panicum virgatam, Schizachyrium scoparium, Sorghastrum nutans, and Tridens flavus. Plants were grown in 53 cm3 conetainers containing native soil. Treatments were applied preemergence and early postemergence (4 weeks after germination). In the preemergence study, 10 and 8 seed, warm season and cool season grass, respectively, were sown and covered with 14.79 cm3 (0.6 cm depth) of soil before application. Treatments were applied in a broadcast carrier volume of 374 L water ha-1. Granular oxadiazon was soil applied on an inert carrier. Visual injury was evaluated biweekly. Root and shoot dry mass, shoot length, and germination were recorded 8 weeks after treatment (WAT). Means were separated by Fishers protected LSD (alpha=0.05). When applied preemergence, mesotrione increased germination of Elymus virginicus 28% relative to the non-treated. All other preemergence treatments resulted in similar emergence to the non-treated. At early postemergence timing, atrazine and simazine injured all cool season grasses, Andropogon gerardii, and Schizachyrium scoparium greater than 65% and up to 100% 4 WAT. At the same timing, metolachlor injured Sorghastrum nutans and Tridens flavus 75%; while prodiamine, pronamide, isoxaben, and pendimethalin resulted in limited injury to the warm season grasses. Results indicate multiple preemergence herbicides may have utility in native grasses. However, herbicide safety at early postemergence application timing was specific to grass species. Results from a repeated study will also be discussed." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only!
"36-10" |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Richard, M., J. D. McCurdy, B. S. Baldwin, and J. Morrison. 2016. Effect of preemergent herbicide timing on safety and germination of native grasses. Agron. Abr. p. 100873. |
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Last checked: 11/21/2016 |
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