Full TGIF Record # 224924
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Web URL(s):http://www.swss.ws/wp-content/uploads/docs/2004%20Proceedings-SWSS.pdf#page=201
    Last checked: 07/16/2013
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Publication Type:
i
Report
Author(s):Henry, G. M.; Yelverton, F. H.
Author Affiliation:Crop Science Department, North Carolina State University, Raleigh, NC
Title:Effect of mowing height on growth and reproductive capabilities of dallisgrass and bahiagrass
Section:Weed management in turf crops
Other records with the "Weed management in turf crops" Section
Meeting Info.:Memphis, Tennessee: January 26-28, 2004
Source:Proceedings: Southern Weed Science Society: 57th Annual Meeting. Vol. 57, 2004, p. 103.
Publishing Information:Champaign, Illinois: Southern Weed Science Society
# of Pages:1
Keywords:TIC Keywords: Cultural control; Evaluations; Mowing height; Paspalum dilatatum; Paspalum notatum
Abstract/Contents:"In North Carolina, Paspalum dilatatum (dallisgrass) and Paspalum notatum (bahiagrass), are two of the most prevalent and difficult to control weed species in turfgrass. They are both rhizomatous, perennial grass weeds that readily invade golf course fairways and roughs. Over time, individual plants slowly increase in diameter due to the spread of aggressive underground rhizomes. Currently, few post-emergent herbicide options exist for the effective, economical control of these weeds. Chemical treatment and frequent mowing practices common to high maintenance turfgrass environments does not dramatically reduce the spread of these weeds. Plugs of individual dallisgrass and bahiagrass plants were collected in Raleigh, NC, in 2003, using a cup-cutter. Plugs were immediately transplanted into bare ground at the Sandhills Research Station in Jackson Springs, NC, on May 29, 2003. Treatments consisted of two mowing regimes: 1.3 and 7.6 cm mowed three times per week. Mowing heights were selected to simulate typical turfgrass maintenance practices conducted on golf course fairways and roughs. A non-mowed check was included for comparison. Plots were arranged in a split-plot experimental design with four replications. Each plot contained six individual plants. Plants were gradually reduced to their respective mowing heights over a two-week period immediately before initiation of the study, which was approximately three weeks after transplanting. Initial plant diameters were measured at the start of the study and were determined monthly afterward. Plants were excavated on November 15, 2003 and rhizome fresh weights were determined for each plant. Plant diameters and rhizome fresh weights of excavated plants were subjected to ANOVA and separated using Fishers protected LSD at the 0.05 significance level. The non-mowed dallisgrass check measured 41 cm and had a rhizome weight of 82 g. Dallisgrass spread was reduced 27% for the 1.3 cm mowed treatment and 30% for the 7.6 cm mowed treatment, respectively. Dallisgrass rhizome production was reduced 57% for the 1.3 cm mowed treatment and 48% for the 7.6 cm mowed treatment, respectively. The non-mowed bahiagrass check measured 70.5 cm and had a rhizome weight of 297 g. Bahiagrass spread was reduced 48% for the 1.3 cm mowed treatment and 24% for the 7.6 cm mowed treatment, respectively. Bahiagrass rhizome production was reduced 83% for the 1.3 cm mowed treatment and 63% for the 7.6 cm mowed treatment, respectively. Dallisgrass spread and rhizome production was reduced when compared to the non-mowed check. However, the amount of reductions did not differ between mowing treatments. Bahiagrass plants that were mowed at the 1.3 cm height had both spread and rhizome production reductions that were less than plants mowed at 7.6 cm. Therefore, areas that are maintained at a rough height may be more conducive to bahiagrass infestation than areas maintained at a fairway height."
Language:English
References:0
Note:"The changing world of weed science"
This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Henry, G. M., and F. H. Yelverton. 2004. Effect of mowing height on growth and reproductive capabilities of dallisgrass and bahiagrass. South. Weed Sci. Soc. Proc. 57:p. 103.
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http://www.swss.ws/wp-content/uploads/docs/2004%20Proceedings-SWSS.pdf#page=201
    Last checked: 07/16/2013
    Requires: PDF Reader
    Notes: Item is within a single large file
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