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| Web URL(s): | http://archive.lib.msu.edu/tic/rpr/2000/72129,%20U%20Arkansas, Richardson.PDF
Last checked: 09/03/2019
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http://archive.lib.msu.edu/tic/rprl/606.pdf
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| Publication Type:
| Report |
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| Material Type: | Manuscript |
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| Monographic Author(s): | Richardson, Michael D.; Boyd, John W.; Karcher, Douglas |
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| Author Affiliation: | Richardson: Assistant Professor, Turfgrass Management/Physiology; Boyd: Extension Specialist, Weed Science; and Karcher: Assistant Professor, Turfgrass Soils and Modeling |
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| Monograph Title: | Establishment and Management of Seeded Bermudagrass in the Transition Zone: [2000 Annual Report], 2000. |
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| Publishing Information: | Fayetteville, Arkansas: University of Arkansas |
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| # of Pages: | 6 |
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| Collation: | [6] pp. |
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| Abstract/Contents: | "Several high-quality seeded bermudagrass (Cynodon dactylon) cultivars have been recently introduced to the turf market. These genetic advances will likely increase the ultilization of seeded bermudagrasses on golf turf surfaces. This research effort addresses two significant problems impeding the wide-spread use of seeded bermudagrass cultivars in the transition zone - weed control and first-year winter survival. The objects of our studies are to: 1) determine how post-emergence and pre-emergence herbicides may effectively be used to control weeds in newly-established seeded bermudagrass 2) Determine the effects of seeding date and seeding rate on morphology and freeze tolerance of newly seeded bermudagrass and 3) determine the effects of N fertilizers and growth regulators on the morphology and freeze-tolerance of newly seeded bermudagrass. All studies were conducted at the UofA Research and Extension Center, Fayetteville and included the seeded bermudagrass cultivars Princess, Jackpot, Mirage, Mohawk, and Nu-Mex Sahara and the experimental line, OKS 91-11, unless otherwise indicated. All studies will be repeated during the 2001 growing season. A post-emergence herbicide study was initiated on June 1, 2000, using the bermudagrass cultivar, 'Princess'. At 7, 14, and 28 days after seedling emergence, individual plots were treated with one of seven post-emergent turf herbicides at recommended rates, including MSMA, dicamba, metsulfuron, 2,4-D, chlopyralid, diclofop, quinclorac, and an untreated control. Significant herbicide injury was observed with diclofop, metsulfuron, dicamba, and 2,4-D over the first 14 days after application. However, the injury was ephemeral and had completely dissipated by 30 days after treatment. The first-year data from this study suggest that common post-emergence herbicide programs can be effectively used on newly seeded bermudagrasses, but some injury can be expected from specific chemicals such as diclofop, 2,4-D, dicamba, and metsulfuron. A pre-emergent herbicide study was also completed during the 2000 growing season. This establishment study was unique, in that the seeds were applied in rows with 12 inches between rows. The main objective was to determine whether a band of activated charcoal, applied directly on the soil surface above the seed row, could effectively deactivate pre-emergent herbicides and allow germination in the seed row to occur. Three herbicides were examined in this study, including oxadiazon, prodiamine, and diuron. Charcoal planting was an effective means of germinating bermudagrass seeds in the presence of pre-emergence herbicides and the rows of bermudagrass produced a significant cover in approximately 6 weeks. Plots that were seeded without charcoal banding and treated with the same herbicides failed to germinate. There were subtle differences in the various herbicides tested, as diuron-treated plots produced better results than prodiamine and oxadiazon. Although not yet confirmed by research, these results suggest that prodiamine and oxadiazon may not be as tightly bound to the activated charcoal as diuron and subsequently retain some of their herbicidal activity. Studies were also initiated to examine the effects of planting rate, planting date, and post-planting management on morphology and freeze tolerance of seeded bermudagrass. All cultivars mentioned above were evaluated in the seeding rate and date trials, while 'Princess' was used in the post-planting, management study. All studies were successfully established during the 2000 growing season and are nearing complete dormancy at the time of this writing. However, the critical data on morphology and freeze tolerance will be collected over the next 4 months and will be reported in the 2001 summary." |
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| Language: | English |
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| References: | 1 |
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| See Also: | See also related summary article, "Establishment and management of seeded bermudagrass in the transition zone" 2000 Turfgrass and Environmental Research Summary [USGA], 2000, p. 26, R=72129. R=72129
See also related book, Establishment and Management of Seeded Bermudagrass in the Transition Zone, [2000], R=306599. R=306599
See also related report "Establishment and management of seeded bermudagrass in the transition zone" 2001 Turfgrass and Environmental Research Summary, 2001, p. 9, R=78340. R=78340
See also related slide set, Establishment and Management of Seeded Bermudagrass in the Transition Zone, [2002], R=197440. R=197440
See also related report "Establishment and management of seeded bermudagrass in the transition zone" 2002 Turfgrass and Environmental Research Summary, 2002, p. 9, R=85015. R=85015 |
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| Note: | Also appears as pp. 0794-0798 in the USGA Turfgrass Research Committee Reporting Binders for 2000
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http://archive.lib.msu.edu/tic/rpr/2000/72129,%20U%20Arkansas, Richardson.PDF
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http://archive.lib.msu.edu/tic/rprl/606.pdf
Last checked: 09/03/2019
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