Hostname: page-component-848d4c4894-sjtt6 Total loading time: 0 Render date: 2024-06-28T03:20:47.107Z Has data issue: false hasContentIssue false
  • English
  • Français

Differential Response to Glyphosate in Italian Ryegrass (Lolium multiflorum) Populations from Mississippi

Published online by Cambridge University Press:  20 January 2017

Vijay K. Nandula ,
Daniel H. Poston ,
Thomas W. Eubank ,
Clifford H. Koger  and
Krishna N. Reddy
Vijay K. Nandula*
Affiliation:
Delta Research and Extension Center, Mississippi State University, Stoneville, MS 38776
Daniel H. Poston
Affiliation:
Delta Research and Extension Center, Mississippi State University, Stoneville, MS 38776
Thomas W. Eubank
Affiliation:
Delta Research and Extension Center, Mississippi State University, Stoneville, MS 38776
Clifford H. Koger
Affiliation:
USDA-ARS Crop Genetics and Production Research Unit, Stoneville, MS 38776
Krishna N. Reddy
Affiliation:
USDA-ARS Southern Weed Science Research Unit, Stoneville, MS 38776
*
Corresponding author's E-mail: vknandula@yahoo.com
Get access Rights & Permissions [Opens in a new window]

Abstract

Two Italian ryegrass populations from Mississippi, Tribbett and Fratesi, were suspected to be tolerant to glyphosate. A third population from Mississippi, Elizabeth, known to be susceptible to glyphosate, was included for comparison. Plants were treated with the isopropylamine salt of glyphosate at 0, 0.11, 0.21, 0.42, 0.84, 1.68, 3.36, and 6.72 kg ae/ha. GR50 (herbicide dose required to cause a 50% reduction in plant growth) values for the Tribbett, Fratesi, and Elizabeth populations were 0.66, 0.66, and 0.22 kg/ha, respectively, indicating that the Tribbett and Fratesi populations were threefold more tolerant to glyphosate compared with the Elizabeth population. These three populations were also treated with diclofop at 0, 0.13, 0.25, 0.5, 0.75, 1, and 2 kg ai/ha. Diclofop GR50 values for the Tribbett, Fratesi, and Elizabeth populations were 0.25, 0.28, 0.21 kg/ha, respectively, indicating similar tolerance to diclofop in the three populations. Response of all three populations to clethodim rate (0, 0.02, 0.03, 0.05, 0.06, 0.08, 0.09, and 0.13 kg ai/ha) was measured. Clethodim GR50 values for the Tribbett, Fratesi, and Elizabeth populations at the small growth stages were 0.016, 0.023, 0.014 kg/ha, respectively, and at the large growth stage were 0.04, 0.034, 0.02 kg/ha, respectively.

Keywords

ClethodimdiclofopglyphosateItalian ryegrass, Lolium multiflorum Lam. LOLMUAlternative control optionsglyphosate resistanceherbicide resistanceresistance managementweed resistance
Type
Research
Information
Weed Technology , Volume 21 , Issue 2 , June 2007 , pp. 477 - 482
Copyright
Copyright © 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

Culpepper, A. S., Grey, T. L., Vencill, W. K., Kichler, J. M., Webster, T. M., Brown, S. M., York, A. C., Davis, J. W., and Hannai, W. W. 2006. Glyphosate-resistant palmer amaranth (Amaranthus palmeri) confirmed in Georgia. Weed Sci. 54:620–626.Google Scholar
Duke, S. O., Baerson, S. R., and Rimando, A. M. 2003. Herbicides: Glyphosate. in Plimmer, J.R., Gammon, D.W. and Ragsdale, N.N., eds. Encyclopedia of Agrochemicals. New York Wiley http://www.mrw.interscience.wiley.com/eoa/articles/agr119/frame.html.Google Scholar
Franz, J. E., Mao, M. K., and Sikorski, J. A. 1997. Glyphosate: A Unique Global Herbicide. Washington, DC American Chemical Society ACS monograph 189. 653.Google Scholar
Heap, I. 2006. Herbicide Resistant Weeds. Weed Science Society of America: Web page: http://www.weedscience.org/. Accessed: October 10, 2006.Google Scholar
Koger, C. H., Poston, D. H., Hayes, R. M., and Montgomery, R. F. 2004. Glyphosate-resistant horseweed (Conyza canadensis) in Mississippi. Weed Technol. 18:820–825.Google Scholar
Lee, L. J. and Ngim, J. 2000. A first report of glyphosate-resistant goosegrass [Eleusine indica (L.) Gaertn] in Malaysia. Pest Manage. Sci. 56:336–339.Google Scholar
Mueller, T. C., Massey, J. H., Hayes, R. M., Main, C. L., and Stewart, C. N. Jr. 2003. Shikimate accumulation in both glyphosate-sensitive and glyphosate-resistant horseweed (Conyza canadensis L. Cronq). J. Agric. Food Chem. 51:680–684.Google Scholar
Nandula, V. K., Reddy, K. N., Duke, S. O., and Poston, D. H. 2005. Glyphosate-resistant weeds: current status and future outlook. Outlooks Pest Manage. 16:183–187.Google Scholar
Owen, M. D. K. and Zelaya, I. A. 2005. Herbicide-resistant crops and weed resistance to herbicides. Pest Manage. Sci. 61:301–311.CrossRefGoogle ScholarPubMed
Perez, A. and Kogan, M. 2003. Glyphosate-resistant Lolium multiflorum in Chilean orchards. Weed Res. 43:12–19.Google Scholar
Perez-Jones, A., Park, K., Colquhoun, J., Mallory-Smith, C., and Shaner, D. L. 2005. Identification of glyphosate-resistant Italian ryegrass (Lolium multiflorum) in Oregon. Weed Sci. 53:775–779.Google Scholar
Perez-Jones, A., Park, K., and Mallory-Smith, C. 2004. Glyphosate-resistant Lolium multiflorum in Oregon. Proc. West. Soc. Weed Sci. 57:27.Google Scholar
Powles, S. B., Lorraine-Colwill, D. F., Dellow, J. J., and Preston, C. 1998. Evolved resistance to glyphosate in rigid ryegrass (Lolium rigidum) in Australia. Weed Sci. 16:604–607.Google Scholar
Pratley, J., Urwin, N., Stanton, R., Baines, P., Broster, J., Cullis, K., Schafer, D., Bohn, J., and Kruger, R. 1999. Resistance to glyphosate in Lolium rigidum. I. Bioevaluation. Weed Sci. 47:405–411.Google Scholar
Seber, G. A. F. and Wild, C. J. 1989. Nonlinear Regression. New York J. Wiley. 768.CrossRefGoogle Scholar
Sellers, B. A., Pollard, J. M., and Smeda, R. J. 2005. Two common ragweed (Ambrosia artemisiifolia) biotypes differ in biology and response to glyphosate. Weed Sci. Soc. Am. Abstr. 44:156.Google Scholar
Simarmata, M., Kaufmann, J. E., and Penner, D. 2003. Potential basis of glyphosate resistance in California rigid ryegrass (Lolium rigidum). Weed Sci. 51:678–682.CrossRefGoogle Scholar
Tran, M., Baerson, S., and Brinker, R. et al. 1999. Characterization of glyphosate resistant Eleusine indica biotypes from Malaysia. Pages 527–536. in Proceedings of the 17th Asian-Pacific Weed Science Society Conference. Bangkok Asian-Pacific Weed Science Society.Google Scholar
VanGessel, M. J. 2001. Glyphosate-resistant horseweed from Delaware. Weed Sci. 49:703–705.CrossRefGoogle Scholar