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Web URL(s):http://www.swss.ws/wp-content/uploads/docs/2010 Proceedings-SWSS.pdf#page=100
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Author(s):Askew, S. D.; Willis, J. B.; David, P.
Author Affiliation:Askew and Willis: Virginia Tech, Blacksburg; David: Gowan Company, Lititz, PA
Title:Turfgrass quality and clipping response to prohexadione calcium
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Meeting Info.:Little Rock, Arkansas: January 25-27, 2010
Source:2010 Proceedings, Southern Weed Science Society. Vol. 63, 2010, p. 50.
# of Pages:1
Publishing Information:Champaign, Illinois: Southern Weed Science Society
Keywords:TIC Keywords: Agrostis stolonifera; Clipping weight; Cultivar evaluation; Cynodon dactylon; Growth regulator evaluation; Poa pratensis; Prohexadione-calcium; Trinexapac-ethyl; Turfgrass quality
Cultivar Names:Riviera; Midnight; L-93
Abstract/Contents:"Prohexadione calcium (PC) is an experimental turfgrass growth regulator under evaluation in creeping bentgrass (Agrostis stolonifera), Kentucky bluegrass (Poa pratensis), and bermudagrass (Cynodon dactylon) and other turfgrass species. It is expected to be registered and marketed under the trade name Midori in the near future. Our objectives were to evaluate clipping response of three turfgrass species to rates of PC as compared to trinexapac ethyl (TE). Three randomized complete block experiments were conducted with three replications each at Blacksburg, VA. Turf was mown at 13 mm and included 'Riviera' bermudagrass, 'L93' creeping bentgrass, and 'Midnight' Kentucky bluegrass. Turf was four years old and received cultural practices as per extension recommendations. Fungicides were applied as needed but no growth regulating fungicides were used. Treatments included PC at 140 and 280 g ai/ha with and without 0.25% v/v nonionic surfactant and trinexapac ethyl at 91 g ai/ha. All treatments were applied in 1120 L/ha water at 4 wk intervals throughout the summer. Ratings for turf quality were taken weekly and plots were mown three times weekly with clippings collected on the third mowing each week. Clippings were air dried and weighed. Data were subjected to ANOVA and average clipping weight over 15 weekly mowings were compared using Fisher's Protected LSD test at P=0.05. Neither PC nor TE injured turfgrasses at any timing in any of the three trials. Both PC and TE improved turf quality at later rating dates when compared to nontreated turf. Addition of NIS seldom affected clipping response at any timing. PC was equivalent to TE for clipping reduction in almost all cases. PC reduced bermudagrass clipping weights faster than TE. Creeping bentgrass response was equivalent to TE in all cases. Based on these data, PC can decrease clippings and improve turf quality of creeping bentgrass, Kentucky bluegrass, and bermudagrass equivalent to TE."
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Askew, S. D., J. B. Willis, and P. David. 2010. Turfgrass quality and clipping response to prohexadione calcium. South. Weed Sci. Soc. Proc. 63:p. 50.
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http://www.swss.ws/wp-content/uploads/docs/2010 Proceedings-SWSS.pdf#page=100
    Last checked: 08/01/2013
    Requires: PDF Reader
    Notes: Item is within a single large file
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