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| Web URL(s): | http://www.newss.org/proceedings/proceedings_2002_vol56.pdf#page=136
Last checked: 07/23/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Watschke, T. L.;
Borger, J. A.;
Brosnan, J. T. |
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| Author Affiliation: | Penn State University, University Park, PA |
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| Title: | PGR research on fairway height creeping bentgrass in 2001 |
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| Meeting Info.: | Loews Hotel, Philadelphia, PA: January 7, 8, 9, and 10, 2002 |
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| Source: | Proceedings of the 56th Annual Meeting of the NortheasternWeed Science Society. Vol. 56, 2002, p. 136. |
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| Publishing Information: | Ithaca, NY: Northeastern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Golf fairways; Growth regulators; Agrostis stolonifera; Color evaluation; Height; Urea
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| Trade Names: | Primo; Proxy; MacroSorb Foliar; Primo plus |
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| Abstract/Contents: | "This study was conducted on a mature stand of creeping bentgrass at the Valentine Turfgrass Research Center, Penn State University, University Park, Pa. The objective of the study was to determine the efficacy of plant growth regulators applied five times with and without the addition of the biostimulant MacroSorb Foliar. Turf height, clipping yields, and color were rated 12 times (approximately weekly) during the study. This study was a randomized complete block design with three replications. Treatments were applied on May 30, June 13, June 27, July 11 and July 27, 2001 using a three foot CO2 powered boom spray calibrated to deliver 40 gpa using two, flat fan, 6504 nozzles at 40 psi. The test site was maintained similar to that of a golf course fairway with respect to irrigation, fertilization and mowing. Turfgrass height was measured using a Turfcheck 1 prism. Only slight variation in color ratings was found throughout the duration of the study. Primo at 0.5 oz/M with 0.2 lbs N/M from urea tended to have slightly improved color compared to untreated turf, while Proxy at 0.5 oz/M tended to have slightly less dark green color on most rating dates than did untreated turf. With regard to height measurements, turf treated with half rate of Primo (0.25 oz/M) plus 2 oz/M of MacroSorb Foliar was consistently as short or shorter than turf treated with Primo at 0.5 oz/M plus urea at a rate of 0.2 lbs N/M. When Primo was applied alone at 0.25 oz/M treated turf tended to be shorter than untreated. Proxy applied at 5 oz/M caused results similar to that of the Primo applied at 0.5 oz/M plus urea at 0.2 lbs N/M. The addition of MacroSorb Foliar to Proxy resulted in turf responses very similar to those cited for Primo and MacroSorb Foliar. With respect to fresh weight yields, on July 2, and 10, turf treated with Primo plus 0.2 lbs N/M from urea had significantly less yield than untreated turf. Turf treated with Primo alone at 0.25 oz/M had less yield than untreated on 6/19, 7/13, and 8/7, while turf treated with the same rate of Primo plus MacroSorb Foliar at 2 oz/M had less yield than untreated turf on 6/5, 6/19, 7/2, 7/10, 7/17, 7/13, and 8/7. Turf treated with Proxy at 5 oz/M had less yield than untreated turf on 8/7 and 8/21. Turf treated with Proxy at 2.5 oz/M had less yield than untreated turf on 7/23, 7/31, 8/7, and 8/21. Turf treated with Proxy at 2.5 oz/M plus 2/oz of MacroSorb Foliar had less yield than untreated turf on 7/23, 7/31, and 8/7. It appears from this experiment that using half rates of both Primo and Proxy in combination with MacroSorb Foliar is equal to or more efficacious than using full label rates." |
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| Language: | English |
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| References: | 0 |
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| See Also: | Other items relating to: P G Rs 1997-2006 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Watschke, T. L., J. A. Borger, and J. T. Brosnan. 2002. PGR research on fairway height creeping bentgrass in 2001. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 56:p. 136. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_2002_vol56.pdf#page=136
Last checked: 07/23/2013
Requires: PDF Reader
Notes: Item is within a single large file |
| 
MSU catalog number: SB 610 .N62 v. 53 |
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