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Glyphosate Can Reduce Glyphosate-resistant Canola Growth After Individual or Sequential Applications

Published online by Cambridge University Press:  20 January 2017

Brian S. Schilling ,
K. Neil Harker  and
Jane R. King
Brian S. Schilling*
Affiliation:
Department of Agricultural, Food, and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada
K. Neil Harker
Affiliation:
Agriculture and Agri-Food Canada, Lacombe Research Centre, 6000 C & E Trail, Lacombe, AB T4L 1S1, Canada
Jane R. King
Affiliation:
Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada
*
Corresponding author's E-mail: [email protected].
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Abstract

Greenhouse experiments were conducted to determine whether multiple applications of glyphosate and time of glyphosate application with regard to the crop's growth stage had a significant effect on the growth and development of glyphosate-resistant canola. Glyphosate was applied as single applications at the two-, four-, or six-leaf stage of canola; as sequential double applications at the two- and four-, two- and six-, and four- and six-leaf stages of canola; and as a triple application at all three stages. Of the plant growth parameters measured, single applications of glyphosate resulted in significant reductions to stem weight and shoot weight compared with nontreated plants, and multiple applications of glyphosate caused significant reductions to leaf area, leaf weight, stem weight, and shoot weight. Single applications of glyphosate were less injurious to glyphosate-resistant canola compared with multiple applications, and canola growth parameter reductions were greatest after earlier glyphosate applications.

Keywords

Glyphosatecanola, Brassica napus L.Crop injuryherbicide-resistant cropleaf stagemultiple applicationEPSPS, 5-enolpyruvylshikimate-3-phosphate synthaseRH, relative humidity
Type
Research
Information
Weed Technology , Volume 20 , Issue 4 , December 2006 , pp. 825 - 830
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Agriculture and Agri-Food Canada 1995. Determination of environmental safety of Monsanto Canada Inc.'s Roundup herbicide-tolerant Brassica napus canola line GT73. Decision Document DD95-02. Ottawa, ON Plant Products Division. 1–7.Google Scholar
Blackshaw, R., Anderson, G., and Dekker, J. 1987. Interference of Sinapis arvensis L. and Chenopodium album L. in spring rapeseed (Brassica napus L.). Weed Res. 27:207–213.CrossRefGoogle Scholar
Boocock, M. R. and Coggins, J. R. 1983. Kinetics of 5-enolpyruvylshikimate-3-phosphate synthase inhibition by glyphosate. FEBS Lett. 154:127–133.CrossRefGoogle ScholarPubMed
Buhler, D. D. and Burnside, O. C. 1987. Effects of application variables on glyphosate phytotoxicity. Weed Technol. 1:14–17.Google Scholar
Clayton, G. W., Harker, K. N., O'Donovan, J. T., Baig, M. N., and Kidnie, M. J. 2002. Glyphosate timing and tillage system effects on glyphosate-resistant canola (Brassica napus). Weed Technol. 16:124–130.Google Scholar
Conn, J. S. and Deck, R. E. 1995. Optimal glyphosate application time for control of foxtail barley (Hordeum jubatum). Weed Technol. 9:267–269.Google Scholar
Darwent, A. L., Kirkland, K. J., Baig, M. N., and Lefkovitch, L. P. 1994. Preharvest applications of glyphosate for Canada thistle (Cirsium arvense) control. Weed Technol. 8:477–482.CrossRefGoogle Scholar
DeFlice, M. S., Brown, W. B., Aldrich, R. J., Sims, B. D., Judy, D. T., and Guethle, D. R. 1989. Weed control in soybeans (Glycine max) with reduced rates of postemergence herbicides. Weed Sci. 37:365–375.Google Scholar
Derksen, D. A., Harker, K. N., and Blackshaw, R. E. 1999. Herbicide tolerant crops and weed population dynamics in western Canada. Proceedings of the Brighton Crop Protection conference: Weeds—1999. Alton, Hampshire, UK British Crop Protection Council. 417–424.Google Scholar
Devine, M. D., Bandeen, J. D., and McKersie, B. D. 1983. Temperature effects on glyphosate absorption, translocation, and distribution in quackgrass (Agropyron repens). Weed Sci. 31:461–464.Google Scholar
Harker, K. N., Clayton, G. W., and Johnston, A. M. 1999. Time of weed removal for canola. Proceedings of 10th International Rapeseed Congress. September 26–29, Canberra, Australia, 4 p. (CD ROM).Google Scholar
Harker, K. N., Clayton, G. W., O'Donovan, J. T., Blackshaw, R. E., and Stevenson, F. C. 2004. Herbicide timing and rate effects on weed management in three herbicide-resistant canola systems. Weed Technol. 18:1006–1012.CrossRefGoogle Scholar
Harris, T. C. and Ritter, R. L. 1987. Giant green foxtail (Setaria viridis var. major) and fall panicum (Panicum dichotomiflorum) competition in soybeans (Glycine max). Weed Sci. 35:663–668.CrossRefGoogle Scholar
Klee, H., Muskopf, Y., and Gasser, C. 1987. Cloning of an Arabidopsis thaliana gene encoding 5-enolpyruvylshikimate-3-phosphate synthase: sequence analysis and manipulation to obtain glyphosate-tolerant plants. Mol. Gen. Genet. 210:437–442.CrossRefGoogle ScholarPubMed
Krausz, R. F., Kapusta, G., and Matthews, J. L. 1996. Control of annual weeds with glyphosate. Weed Technol. 10:957–962.CrossRefGoogle Scholar
Krausz, R. F. and Young, B. G. 2001. Response of glyphosate-resistant soybean (Glycine max) to trimethylsulfonium and isopropylamine salts of glyphosate. Weed Technol. 15:745–749.CrossRefGoogle Scholar
Lanie, A. J., Griffin, J. L., Vidrine, P. R., and Reynolds, D. B. 1994. Weed control with non-selective herbicides in soybean (Glycine max) stale seedbed culture. Weed Technol. 8:159–164.Google Scholar
Lich, J. M., Renner, K. A., and Penner, D. 1997. Interaction of glyphosate with postemergence soybean (Glycine max) herbicides. Weed Sci. 45:12–21.Google Scholar
Malik, J., Barry, G., and Kishore, G. 1989. The herbicide glyphosate. Biofactors. 2:17–25.Google Scholar
Martin, S. G., Van Acker, R. C., and Friesen, L. F. 2001. Critical period of weed control in spring canola. Weed Sci. 49:326–333.CrossRefGoogle Scholar
McWhorter, C. G. and Azlin, W. R. 1978. Effects of environment on the toxicity of glyphosate to johnsongrass (Sorghum halepense) and soybeans (Glycine max). Weed Sci. 26:605–608.Google Scholar
Moseley, C. M. and Hagood, E. S. 1991. Decreasing rates of nonselective herbicides in double-crop no-till soybeans (Glycine max). Weed Technol. 5:198–201.Google Scholar
O'Donovan, J., de St. Remy, E., O'Sullivan, P., Dew, D., and Sharma, A. 1985. Influence of the relative time of emergence of wild oat (Avena fatua) on yield loss of barley (Hordeum vulgare) and wheat (Triticum aestivum). Weed Sci. 33:498–503.Google Scholar
[SAFRR] Saskatchewan Agriculture, Food and Rural Revitalization 2005. 2005 Guide to Crop Protection. Regina, Canada Saskatchewan Agriculture, Food and Rural Revitalization. 125.Google Scholar
[SAS] Statistical Analysis Systems 1996. SAS version 6.12. Cary, NC Statistical Analysis Systems Institute.Google Scholar
Schilling, B. 1998. Weed competition effects on the growth and yield of glyphosate tolerant canola. MSc thesis, University of Alberta Alberta, Canada.Google Scholar
Sherman, T., Vaughn, K., and Duke, S. 1996. Mechanisms of action and resistance to herbicide. in Duke, S., ed. Herbicide Resistant Crops: Agricultural, Environmental, Economic, Regulatory and Technical Aspects. Boca Raton, FL CRC Press.Google Scholar
Singh, B. K., Siehl, D. L., and Connelly, J. A. 1991. Shikimate pathway: why does it mean so much to so many? Oxf. Surv. Plant Mol. Cell Biol. 7:143–185.Google Scholar
Sprankle, P., Meggitt, W. F., and Penner, D. 1975. Absorption, action, and translocation of glyphosate. Weed Sci. 23:235–240.Google Scholar
Stringam, G. R. 1971. Genetics of four hypocotyl mutants in Brassica campestris L. J. Hered. 62:248–250.CrossRefGoogle Scholar
Wilson, J. S. and Worsham, D. 1988. Combinations of nonselective herbicides for difficult to control weeds in no-till corn, Zea mays, and soybeans, Glycine max . Weed Sci. 36:648–652.Google Scholar
Young, B. G., Young, J. M., Gonzini, L. C., Hart, S. E., Wax, L. M., and Kapusta, G. 2001. Weed management in narrow- and wide-row glyphosate-resistant soybean (Glycine max). Weed Technol. 15:112–121.Google Scholar