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Response of Glyphosate-Resistant Soybean to Glyphosate During Reproductive Development

Published online by Cambridge University Press:  20 January 2017

Donnie K. Miller ,
Derek M. Scroggs ,
Ernest L. Clawson  and
David Y. Lanclos
Donnie K. Miller*
Affiliation:
Northeast Research Station, LSU AgCenter, P.O. Box 438, St. Joseph, LA 71366
Derek M. Scroggs
Affiliation:
Dean Lee Research Station, LSU AgCenter, 8105 Tom Bowman Drive, Alexandria, LA 71302
Ernest L. Clawson
Affiliation:
Northeast Research Station, LSU AgCenter, P.O. Box 438, St. Joseph, LA 71366
David Y. Lanclos
Affiliation:
Dean Lee Research Station, LSU AgCenter, 8105 Tom Bowman Drive, Alexandria, LA 71302
*
Corresponding author's E-mail: [email protected]
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Abstract

Two field studies were conducted in 2004 and 2005 to evaluate the response of glyphosate-resistant ‘TV52R42’ and ‘TV52R14’ soybean to glyphosate at 0, 458, 916, 1,375, 1,833, or 2,749 g ae/ha applied at the R4 reproductive growth stage and at R4 followed by the same rates at R6. A single glyphosate application at the R4 stage did not injure soybean or cause reductions in soybean height, nodes per plant, branch pods, main stem pods, or yield, regardless of application rate. Likewise, sequential applications of glyphosate at the R4 followed by R6 growth stages resulted in no adverse effects on growth parameters or yield. Preliminary findings indicate excellent tolerance to glyphosate application at reproductive growth stages beyond the currently labeled R2 growth stage restriction in varieties evaluated. Research findings warrant evaluation of an expanded range of germplasm under a variety of environmental conditions and potential effects on seed quality for establishment of tolerance levels and potential herbicide label amendments.

Keywords

Glyphosate, soybean, Glycine max (L.) Merr. ‘TV52R42’ and ‘TV52R14’Glyphosate-resistant soybeanherbicideinjuryreproductive-growth-stage applicationyield
Type
Notes
Information
Weed Technology , Volume 22 , Issue 2 , June 2008 , pp. 359 - 362
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Anonymous, , 2006. Roundup Weathermax Supplement Labeling for Use in Roundup Ready Soybeans. http://www.cdms.net/LDat/ld5UJ031.pdf. Accessed: February 19, 2008.Google Scholar
Ashton, F. M. and Crafts, A. S. 1981. Glyphosate. Pages 236–253. in Ashton, F. M. and Crafts, A. S., editors. Mode of Action of Herbicides. New York Wiley.Google Scholar
Azlin, W. R. and McWhorter, C. G. 1981. Preharvest effects of applying glyphosate to soybeans (Glycine max). Weed Sci. 29:123–127.Google Scholar
Clay, P. A. and Griffin, J. L. 2000. Weed seed production and seedling emergence responses to late-season glyphosate applications. Weed Sci. 48:481–486.Google Scholar
Culpepper, A. S., York, A. C., Batts, R. B., and Jennings, K. M. 2000. Weed management in glufosinate- and glyphosate-resistant soybean (Glycine max). Weed Technol. 14:77–88.CrossRefGoogle Scholar
Ellis, J. M., Shaw, D. R., and Barrentine, W. L. 1998. Herbicide combinations for preharvest weed desiccation in early maturing soybean (Glycine max). Weed Technol. 12:157–165.CrossRefGoogle Scholar
Elmore, R. W., Roeth, F. W., Klein, R. N., Knezevic, S. Z., Martin, A., Nelson, L. A., and Shapiro, C. A. 2001. Glyphosate-resistant soybean cultivar response to glyphosate. Agron. J. 93:404–407.CrossRefGoogle Scholar
Fischer, D. W. and Fanta, J. 2004. Reproductive Soybean Development Stages and Soybean Aphid Thresholds. http://www.uky.edu/ag/ipmprinceton/soybeanaphid/soybean20stages.pdf. Accessed June 26, 2007.Google Scholar
Hilgenfeld, K. L., Martin, A. R., Mortensen, D. A., and Mason, S. C. 2004. Weed management in a glyphosate-resistant soybean system: weed species shifts. Weed Technol. 18:284–291.Google Scholar
Hollier, C. 2006. Asian Soybean Rust and Fungicides. http://www.lsuagcenter.com/en/crops/crops_livestock/crops/soybeans/Asian_Soybean_Rust/AsianSoybeanRustFungicides.htm. Accessed June 29, 2007.Google Scholar
Isaacs, M. A., Murdock, E. C., Toler, J. E., and Wallace, S. U. 1989. Effects of late-season herbicide applications on sicklepod (Cassia obtusifolia) seed production and viability. Weed Sci. 37:761–765.CrossRefGoogle Scholar
Norsworthy, J. K. 2004. Tolerance of a glyphosate-resistant soybean to late-season glyphosate applications. Weed Technol. 18:454–457.Google Scholar
Payne, S. A. and Oliver, L. R. 2000. Weed control programs in drilled glyphosate-resistant soybean. Weed Technol. 14:413–422.Google Scholar
Reddy, K. N. and Whiting, K. 2000. Weed control and economic comparisons of glyphosate-resistant, sulfonylurea-tolerant, and conventional soybean (Glycine max) systems. Weed Technol. 14:204–211.CrossRefGoogle Scholar
SAS 1998. SAS/STAT User's Guide. Release 7.0. Cary, NC SAS Institute. 1028.Google Scholar
Shaw, D. R., Arnold, J. C., Snipes, C. E., Laughlin, D. H., and Mills, J. A. 2001. Comparison of glyphosate-resistant and nontransgenic soybean (Glycine max) herbicide systems. Weed Technol. 15:676–685.Google Scholar
Taylor, S. E. and Oliver, L. R. 1997. Sicklepod (Senna obtusifolia) seed production and viability as influenced by late-season postemergence herbicide applications. Weed Sci. 45:497–501.Google Scholar
USDA-NASS 2007. Soybean Acreage 2007. http://www.nass.usda.gov/Charts_and_Maps/Field_Crops/soyac.asp. Accessed: January 17, 2008.Google Scholar
Vanlieshout, L. A. and Loux, M. M. 2000. Interactions of glyphosate with residual herbicides in no-till soybean (Glycine max) production. Weed Technol. 14:480–487.Google Scholar
Wait, J. D., Johnson, W. G., and Massey, R. E. 1999. Weed management with residual rates of glyphosate in no-till, narrow-row, glyphosate-resistant soybean (Glycine max). Weed Technol. 13:478–483.Google Scholar
Webster, E. P., Bryant, K. S., and Earnest, L. D. 1999. Weed control and economics in non transgenic and glyphosate-resistant soybean (Glycine max). Weed Technol. 13:586–593.Google Scholar