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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2005 Proceedings-SWSS.pdf#page=194
Last checked: 07/18/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Pool, N. B.;
Brecke, B. J.;
Unruh, J. B.;
MacDonald, G. E.;
Trenholm, L. E.;
Ferrell, J. A. |
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| Author Affiliation: | University of Florida, Gainesville, FL |
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| Title: | Reducing weed populations in seashore paspalum with the use of saltwater |
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| Section: | Weed management in turfgrass
Other records with the "Weed management in turfgrass" Section
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| Meeting Info.: | Charlotte, North Carolina: January 24-26, 2005 |
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| Source: | Proceedings of the 58th Annual Meeting of the Southern Weed Science Society. Vol. 58, 2005, p. 119. |
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| Publishing Information: | Champaign, Illinois: Southern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Control methods; Evaluations; Paspalum vaginatum; Saline water; Weed control
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| Abstract/Contents: | "Seashore paspalum (Paspalum vaginatum) is a perennial warm season turfgrass native to the tropical and subtropical regions of North and South America, and has been recently developed for commercial use. The plant spreads vegetatively by rhizomes and stolons to form a deep fibrous root system. The texture is slightly coarser than bermudagrass unless mowed at less than an inch in height. Seashore paspalum thrives in moist soils and has a high tolerance to salinity, which makes it an attractive turf in the coastal areas of Florida where saltwater intrusion is a major concern. The objectives of this research were to: 1) determine salinity tolerance of established and newly sprigged seashore paspalum; 2) determine the sensitivity of common turfgrass weeds to levels of salinity. Experiments were conducted at the University of Florida, Milton Campus and the West Florida Research and Education Center in 2003 and 2004. Saltwater treatments consisting of 34,000ppm (1x), 25,500ppm (3/4x), 17,000ppm (1/2x), 8,500ppm (1/4x), and untreated (0x) were applied to established and newly sprigged Seashore paspalum in 4L pots under greenhouse conditions. Treatments were applied 2 times per week for a total of 8 weeks. In the second study, dollarweed, Florida pusley, Virginia buttonweed, common bermudagrass, goosegrass, large crabgrass, torpedograss, tropical signalgrass, and purple nutsedge were transplanted into 4L pots under greenhouse conditions and allowed to establish for 3 weeks. Saltwater treatments (1x, 3/4x, 1/2x, 1/4x and 0x) were applied to each weed 2 times per week for a total of 4 weeks. Large crabgrass and annual kyllinga were also tested under field conditions in an established stand of 'Sea Isle 1' Seashore paspalum. Individual plot size was 1.5 m2. Plots were treated for 4 weeks with a 1/4x or 1/2x concentration of salt applied as a liquid solution or as a granule. All experiments were replicated 4 times. Visual evaluations of turfgrass injury were based on quality assessments where 0 = injury and 9 = healthy plant. Visual evaluations of weed control were based on 0 to 100 scale, where 0 = no control and 100 = complete control. Quality was compromised (ratings < 7) at the 3/4x and 1x rates of saltwater for established Seashore paspalum while all levels of salt caused unacceptable injury to newly sprigged Seashore paspalum. Florida pusley was completely controlled at all rates of saltwater while Virginia buttonweed was completely controlled at 1/2x and greater rates of saltwater. Crabgrass and tropical signalgrass were adequately controlled at the 3/4x and 1x rates of saltwater while the 1x rate was needed to provide acceptable control of purple nutsedge and dollarweed. Bermudagrass and torpedograss exhibited high levels of tolerance at all salt concentrations. In the field study, crabgrass was effectively controlled at 1/2x rate of saltwater applied as a solution and as a granular salt. The 1/4x rate was also effective granularly applied, but not applied as a solution. Kyllinga was adequately controlled at the 1/2x rate as a granular and solution, but the 1/4x rate was not effective using either method. In both studied the granular application method provided better control of crabgrass and kyllinga compared to salt applied in solution." |
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| Language: | English |
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| References: | 0 |
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| Note: | "The changing world of weed science"
This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Pool, N. B., B. J. Brecke, J. B. Unruh, G. E. MacDonald, L. E. Trenholm, and J. A. Ferrell. 2005. Reducing weed populations in seashore paspalum with the use of saltwater. South. Weed Sci. Soc. Proc. 58:p. 119. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2005 Proceedings-SWSS.pdf#page=194
Last checked: 07/18/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: b2207931 |
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