Full TGIF Record # 228483
Item 1 of 1
Publication Type:
i
Report
Author(s):Montgomery, D. P.; Kenna, M. P.; Cargill, L. M.
Author Affiliation:Department of Horticulture and Landscape Architecture, Oklahoma State University, Stillwater, Oklahoma
Title:Growth regulation of bermudagrass on Oklahoma rights-of-way
Section:Control of weeds on utility, railroad, and highway rights-of-way and on industrial sites
Other records with the "Control of weeds on utility, railroad, and highway rights-of-way and on industrial sites" Section
Meeting Info.:Nashville, Tennessee: January 16-18, 1989
Source:Proceedings: Southern Weed Science Society. Vol. 42, 1989, p. 251.
Publishing Information:Champaign, Illinois: Southern Weed Science Society
# of Pages:1
Abstract/Contents:"Several plant growth regulators (PGR's) were evaluated in 1988 for their ability to suppress Bermudagrass growth and development in a field experiment conducted at the Agriculture Experiment Station, Stillwater, Oklahoma. At present, few products have shown the ability to suppress the growth of warm-season grasses and maintain the suppression for the entire growing season. Treatments included XE-1019 at 1.12, 1.68, and 2.24 kg ha-1, clethodim at 0.11, and 0.22 kg ha-1, CGA-163925 at 0.67, 0.90, and 1.12 kg ha-1, sethoxydim at 0.31 kg ha-1. The experimental design was randomized complete block replicated three times. Treatments were applied on 10 June to 1.5 m by 3.0 m plots using a CO2 - powered hand-held boom sprayer. Plots were mowed prior to treatment at a height of 4 cm. Treatments were evaluated monthly for bermudagrass height, percent seedhead suppression, and Bermudagrass phytotoxicity. All treatments significantly reduced bermudagrass height one month after treatment (MAT). All clethodim and CGA-163925 treatments reduced heights from 50-60 percent. At 2 MAT, the CGA-163925 treatments maintained 60-70 percent growth suppression. XE-1019 applied at 0.22 kg ha-1 were the still significantly suppressing growth at 3 MAT. Bermudagrass seedhead suppression may also reduce mowing requirements. All treatments of clethodim, CGA-163925 and sethoxydim produced significant seedhead suppression at 1 MAT. These same treatments maintained at least 70 percent seedhead suppression at 3 MAT. XE-1019 treatments increased seedhead suppression by 3 MAT. Significant bermudagrass phytotoxicity occurred for clethodim applied at 0.11 and 0.22 kg ha-1, sethoxydim, and all treatments of CGA-163925 at 1 MAT. Phytotoxicity was in the form of leaf yellowing and was not evident for these treatments at the later evaluations. At 2 MAT, XE-1019 treatments were still producing significant bermudagarss [bermudagrass] phytotoxicity"
Language:English
References:0
Note:"Finding a common ground"
This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Montgomery, D. P., M. P. Kenna, and L. M. Cargill. 1989. Growth regulation of bermudagrass on Oklahoma rights-of-way. South. Weed Sci. Soc. Proc. 42:p. 251.
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