Full TGIF Record # 112014
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Web URL(s):https://journals.ashs.org/hortsci/view/journals/hortsci/40/5/article-p1549.xml?rskey=0WXQFC
    Last checked: 11/20/2019
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Author(s):McCullough, Patrick E.; Liu, Haibo; McCarty, Lambert B.
Author Affiliation:McCullough: Department of Plant Biology nad Pathology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey; Liu and McCarty: Department of Horticulture, Clemson University, Clemson, South Carolina
Title:Dwarf bermudagrass responses to flurprimidol and paclobutrazol
Section:Turf management
Other records with the "Turf management" Section
Source:HortScience. Vol. 40, No. 5, August 2005, p. 1549-1551.
# of Pages:3
Publishing Information:Alexandria, VA: American Society for Horticultural Science
Keywords:TIC Keywords: Dwarf bermudagrasses; Flurprimidol; Paclobutrazol; Growth regulators; Application rates; Cynodon transvaalensis; Cynodon dactylon; Shoot density; Clipping weight
Cultivar Names:TifEagle; Champion
Abstract/Contents:"Plant growth regulators are applied to inhibit uneven shoot growth of putting green turf but research is limited on responses of dwarf-type bermudagrass cultivars to growth inhibition. Experiments were conducted at the Clemson University Greenhouse Complex with 'Champion' and 'TifEagle' bermudagrass grown in polyvinylchloride containers with 40 cm depths and 177 cm2 areas built to United States Golf Association specification. Flurprimidol was applied at 0.14, 0.28, and 0.48 kg路ha-1 a.i. and paclobutrazol at 0.14 kg路ha-1 a.i. on separate containers. Flurprimidol at 0.28 and 0.42 kg路ha-1 caused 17% and 31% reduction in turf color 5 weeks after treatment (WAT), respectively. 'Champion' exhibited unacceptable turf injury (>30%) 2 WAT from paclobutrazol and all flurprimidol rates. 'TifEagle' had unacceptable turf injury from flurprimidol at 0.42 kg路ha-1 2 WAT, 0.28 kg路ha-1 3 WAT, and 0.14 kg路ha-1 4 WAT that did not recover. Moderate injury (16% to 30%) was observed from paclobutrazol on 'TifEagle' but ratings were acceptable. After 6 weeks, flurprimidol at 0.14, 0.28, and 0.42 kg路ha-1 reduced bermudagrass green shoot density (GSD) per square centimeter by 20%, 40%, and 40%, respectively, while paclobutrazol reduced GSD 12%. 'TifEagle' total clipping yield was reduced 60%, 76%, and 86% from flurprimidol at 0.14, 0.28, and 0.42 kg路ha-1, respectively, and 37% from paclobutrazol. 'Champion' total clipping yield was reduced 82%, 90%, and 90% from flurprimidol at 0.14, 0.28, and 0.42 kg路ha-1, respectively, and 58% from paclobutrazol. After 6 weeks, flurprimidol reduced 'Champion' total root mass by 44% over all three rates. 'Champion' treated with paclobutrazol had similar total root mass to the untreated. 'TifEagle' treated with all PGRs had similar rooting to the untreated. Overall, flurprimidol will likely not be suitable for dwarf bermudagrass maintenance at these rates; however paclobutrazol may have potential at 鈮0.14 kg路ha-1."
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
McCullough, P. E., H. Liu, and L. B. McCarty. 2005. Dwarf bermudagrass responses to flurprimidol and paclobutrazol. HortScience. 40(5):p. 1549-1551.
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DOI: 10.21273/HORTSCI.40.5.1549
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    Last checked: 11/20/2019
    Requires: PDF Reader
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