Hostname: page-component-586b7cd67f-rdxmf Total loading time: 0 Render date: 2024-11-23T22:26:13.269Z Has data issue: false hasContentIssue false
  • English
  • Français

Response of Bermudagrass (Cynodon spp.) to Plant Growth Regulators

Published online by Cambridge University Press:  12 June 2017

Billy J. Johnson
Billy J. Johnson*
Affiliation:
Univ. Ga., Ga. Stn., Griffin, GA 30223-1797
Get access Rights & Permissions [Opens in a new window]

Abstract

Plant growth regulators were evaluated on African ‘Tifway’ and common bermudagrass. The vegetative growth of mowed Tifway bermudagrass was suppressed 15 to 22% for 3 weeks by flurprimidol at 0.84 kg ai/ha while mowed common bermudagrass was suppressed 30 to 34% during the same period by flurprimidol at 1.1 kg/ha. When nonmowed bermudagrass was treated with flurprimidol, the growth of Tifway treated at 0.84 kg/ha was suppressed 42% at 8 weeks while growth of common bermudagrass treated at 1.1 kg/ha was suppressed 26% at 6 weeks. Excessive injury by flurprimidol occurred when common and Tifway bermudagrass were treated at rates above 1.1 and 0.84 kg/ha, respectively. Imazethapyr excessively injured both bermudagrass cultivars. Mefluidide and Mon 4620 injured both bermudagrass cultivars slightly, but neither suppressed vegetative growth as effectively as flurprimidol.

Keywords

Flurprimidol, α-(1-methyl-ethyl)-α-[4-trifluoromethoxy)phenyl]-5-pyrimidinemethanolimazethapyr, (±)-2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-5-ethyl-3-pyridinecarboxylic acidmefluidide, N-[2,4-dimethyl-5-[[(trifluoromethyl)sulfonyl]amino]phenyl]acetamideMon 4620, N-[(acetylamino)methyl]-2-chloro-N-2,6-(diethylphenyl)acetamideAfrican ‘Tifway’ bermudagrass, Cynodon transvaalensis Burtt-Davey ♯3 CYNTRx C. dactylon (L.)Pers. ♯ CYNDATurf qualityflurprimidolimazethapyrmefluidideMon 4620CYNDACYNTR
Type
Research
Information
Weed Technology , Volume 3 , Issue 3 , September 1989 , pp. 440 - 444
Copyright
Copyright © 1989 by the Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. Batten, S. M. 1983. Growth regulators – new tools for the ‘80’s? USGA Green Sect. 21(3):1–3.Google Scholar
2. Christians, N. E. 1985. Response of Kentucky bluegrass to four growth retardants. J. Am. Soc. Hortic. 110:765–769.Google Scholar
3. DiPaola, J. M., Gilbert, W. B., and Lewis, W. M. 1985. Turfgrass response to growth retardants. Fact Sheet, Fla. Turf Digest 2(1).Google Scholar
4. Hield, H. S. H., Gibeault, V. A., and Youngner, V. B. 1979. Warm-season turf growth control with Embark. Calif. Agric. 33(10):15–16.Google Scholar
5. Johnson, B. J. 1988. Influence of nitrogen on the response of ‘Tifway’ bermudagrass (Cynodon dactylon) to flurprimidol. Weed Technol. 2:53–58.Google Scholar
6. Peacock, C. H. 1986. Effects of selected growth regulators on bermudagrass. Turfgrass Research in Florida. Technical Report. p. 73–76, Univ. Florida, Gainesville.Google Scholar
7. SAS Institute. 1982. SAS Users' Guide, SAS Inst., Inc., Cary, NC.Google Scholar
8. Wu, Chu-huang, Meyers, H. R., and Santelmann, P. W. 1976. Chemical retardation of bermudagrass turf. Agron. J. 68:949–952.Google Scholar