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| Web URL(s): | http://www.newss.org/proceedings/proceedings_2000_vol54.pdf#page=102
Last checked: 07/24/2013
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): | Fagerness, M. J.;
Yelverton, F. H. |
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| Author Affiliation: | Fagerness: Research Assistant, Crop Science Department, North Carolina State University, Raleigh, NC; Yelverton: Associate Professor, Crop Science Department, North Carolina State University, Raleigh, NC |
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| Title: | Trinexapac-ethyl effects on thatch development and mowing quality of 'Tifway' bermudagrass |
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| Section: | Turfgrass and plant growth regulators
Other records with the "Turfgrass and plant growth regulators" Section
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| Meeting Info.: | Baltimore, MD: January 3-6, 2000 |
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| Source: | Proceedings of the 54th Annual Meeting of the Northeastern Weed Science Society. Vol. 54, 2000, p. 102. |
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| Publishing Information: | College Park, MD: Northeastern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Trinexapac-ethyl; Cynodon dactylon; Cynodon transvaalensis; Application timing; Thatch; Mowing quality; Visual evaluation; Shoot density; Percent living ground cover; Canopy
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| Cultivar Names: | Tifway |
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| Abstract/Contents: | "Recent observations of reduced mowing injury in trinexapac-ethyl (TE) treated 'Tifway' bermudagrass [Cynodon dactylon (L.) Pers. x Cynodon transvaalensis (Burtt-Davy)] produced the hypothesis that, in addition to canopy height reduction, TE may affect the development of thatch in this species. Research was conducted at two locations in North Carolina in summer 1999 to investigate how various seasonal application patterns of TE affected thatch layer development in established 'Tifway' bermudagrass over the course of the growing season. TE was applied once, twice, or three times during the growing season at 0.11 kg a.i./ha. Physical development of the thatch layer was quantified through measurements of thatch depth and thatch biomasss while mowing quality was assessed using subjective visual quality measurements and quantification of both shoot density and the percentage of verdure which was green tissue. Additional assessment of mowing quality was achieved through acquisition and comparative analysis of digital images. All measurements were conducted at biweekly intervals, beginning at the time TE was inititally applied. While thatch development parameters did vary with location, results showed neither thatch depth nor thatch biomass were appreciably affected by TE at either location, especially later in the growing season when chronic effects of TE might be most evident. However, patterns of visual quality and shoot density did favor areas treated with TE, illustrating that a) assessment of turfgrass quality is influenced by shoot density and b) reduced canopy heights in TE treated areas, coupled with increased shoot density, may serve to buffer 'Tifway' bermudagrass from mowing injury. Additionally, measurements of the percentage of verdure composed of green shoot material favored TE treated areas, especially earlier in the growing season. This pattern diminished towards the end of the growing season, as did patterns of TE enhanced shoot density and visual quality. The absence of dramatic differences among plots inhibited the utility of digital image analysis for quantifying mowing quality but identified trends showed TE treated turf to be of higher mowing quality. Overall, results suggested that TE effects on canopy development in 'Tifway' bermudagrass can have a significant impact on mowing quality while development of the thatch layer was unaffected by TE and seemed of limited importance to mowing quality." |
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| Language: | English |
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| References: | 0 |
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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):
Fagerness, M. J., and F. H. Yelverton. 2000. Trinexapac-ethyl effects on thatch development and mowing quality of 'Tifway' bermudagrass. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 54:p. 102. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_2000_vol54.pdf#page=102
Last checked: 07/24/2013
Requires: PDF Reader
Notes: Item is within a single large file |
| 
MSU catalog number: SB 610 .N62 v. 54 |
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