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| Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/2005jou363.pdf
Last checked: 08/09/2010
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| Publication Type:
| Refereed |
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| Author(s): | Carson, Troy D.;
Horgan, Brian P.;
White, Donald B. |
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| Author Affiliation: | Carson: The Toro Company, Bloomington, Minnesota; Horgan and White: Department of Horticultural Science, University of Minnesota, St. Paul, Minnesota |
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| Title: | Mowing influence on the competitive ability of creeping bluegrass versus a wild annual bluegrass |
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| Section: | Establishment & maintenance
Other records with the "Establishment & maintenance" Section
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| Meeting Info.: | Llandudno, Wales, UK: July 10-15 2005 |
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| Source: | International Turfgrass Society Research Journal. Vol. 10, No. Part 1, 2005, p. 363-367. |
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| Publishing Information: | Aberystywth, Ceredigion, UK: International Turfgrass Society |
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| # of Pages: | 5 |
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| Keywords: | TIC Keywords: Mowing; Competitive ability; Poa annua var. reptans; Cultivar improvement; Poa annua; Native grasses; Poa annua control; Tillers (vegetative); Leaves; Dry weight
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| Abstract/Contents: | "Commercially available cultivars of creeping bentgrass (Poa annua var. reptans Hausskn.) have been reported to contain wild Poa annua L. contaminants, but were also reported to have out competed and displaced these wild-types when placed under mowing. This study examined the results of competition under mown and unmown conditions between a wild Poa annua L. and an improved creeping bluegrass breeding line (UMN14838). The effect of competition on a plant surrounded by a like or unlike plant was assessed by comparing various morphological traits. Unmown UNM14838 plants surrounded by wild plants had up to a 60% reduction in tiller number, leaf number and vegetative dry weight as compared to when surrounded by UMN14838 plants. Conversely, unmown wild plants had 48-100% increase in the same measurements when surrounded by UMN14838 plants rather than wild plants. MownUMN 14838 plants had an increase of 40% and 14% in tiller number and 56% and 4% in leaf number in 2001 and 2003, respectively, when surrounded by wild versus UMN14838 plants. There was not significant reduction in the same measurements when a wild plant was surrounded by UMN 14838 plants versus other wild plants, but mown wild plants always had numerically lower values for tiller number, leaf number and vegetative dry weight as compared to mown UMN 14838. Thus, these findings suggest that in an unmown environment, such as a sod field, an erect wild P. annua has a selective advantage over a creeping bluegrass cultivar, however when mowing pressure is applied, the creeping bluegrass is favored." |
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| Language: | English |
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| References: | 19 |
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| Note: | Figures
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Carson, T. D., B. P. Horgan, and D. B. White. 2005. Mowing influence on the competitive ability of creeping bluegrass versus a wild annual bluegrass. Int. Turfgrass Soc. Res. J. 10(Part 1):p. 363-367. |
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| Web URL(s):
https://archive.lib.msu.edu/tic/its/articles/2005jou363.pdf
Last checked: 08/09/2010
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MSU catalog number: SB 433 .I52 v. 10 |
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