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Sicklepod (Senna obtusifolia) Survival and Fecundity in Wide- and Narrow-Row Glyphosate-Resistant Soybean

Published online by Cambridge University Press:  20 January 2017

Jason K. Norsworthy*
Affiliation:
Department of Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, AR 72701
Prashant Jha
Affiliation:
Department of Entomology, Soils, and Plant Sciences, Clemson University, Clemson, SC 29631
William Bridges Jr.
Affiliation:
Department of Applied Economics and Statistics, Clemson University, Clemson, SC 29631
*
Corresponding author's E-mail: [email protected]

Abstract

Experiments were conducted to determine the influence of soybean row width and glyphosate application timing on survival, biomass production, and fecundity of three sicklepod cohorts along with soybean seed yield. The first cohort comprised sicklepod plants that emerged from soybean planting through the V3 stage of soybean (two fully developed trifoliate leaves plus the unifoliate leaves; cohort 1). The second cohort comprised plants that emerged between the V3 to V6 stages of soybean (five fully developed trifoliate leaves plus the unifoliate leaves; cohort 2), and the third cohort emerged after the V6 stage through the R2 stage of soybean (full bloom; cohort 3). Glyphosate was applied at V3; V6; V3 and V6; and V3, V6, and R2 in rows 19 and 97 cm wide, and a nontreated control was included for comparison in each row width. Survival of cohort 1 in 2004 in glyphosate-treated plots occurred only after a single glyphosate application at V3 or V6 in wide rows. Narrowing the soybean row width reduced sicklepod survival throughout the growing season, even without glyphosate. Total biomass production from all cohorts averaged over years was 1,602 g m−2 in wide rows compared with 648 g m−2 in narrow rows. Cohort 1 accounted for 70 and 77% of the total sicklepod biomass in wide and narrow rows, respectively. Cohort 2 contributed 29% of the total sicklepod biomass in wide rows and 22% in narrow rows. Cohort 3 produced minimal biomass, contributing no more than 1% of the total sicklepod biomass. Sicklepod emerging after V6 failed to produce seed in 2004, and no sicklepod seed were produced in 2005 by plants emerging after V3. Averaged over years, sicklepod from cohort 1 in nontreated controls produced 3,695 seed m−2 in narrow rows compared with 6,685 seed m−2 in wide rows. Nontreated sicklepod from cohort 2 in 2004 produced 510 seed m−2 in narrow rows compared with 1,640 seed m−2 in wide rows. Soybean yields were similar among all glyphosate applications averaged over years and row widths, ranging from 3,340 to 3,700 kg ha−1 compared with 1,290 kg ha−1 without glyphosate (61 to 65% yield loss).

Type
Weed Management
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Banks, P. A., Tripp, T. N., Wells, J. W., and Hammel, J. E. 1985. Effects of tillage on sicklepod (Cassia obtusifolia) interference with soybeans (Glycine max) and soil water use. Weed Sci. 34:143149.CrossRefGoogle Scholar
Bararpour, M. T. and Oliver, L. R. 1998. Effect of tillage and interference on common cocklebur (Xanthium strumarium) and sicklepod (Senna obtusifolia) population, seed production, and seedbank. Weed Sci. 46:424431.CrossRefGoogle Scholar
Barnes, J. W. and Oliver, L. R. 2003. Cultural practices and glyphosate applications for sicklepod (Senna obtusifolia) control in soybean (Glycine max). Weed Technol. 17:429440.Google Scholar
Bennett, A. C. and Shaw, D. R. 2000. Effect of preharvest desiccants on weed seed production and viability. Weed Technol. 14:530538.Google Scholar
Board, J. E., Kamal, M., and Harville, B. G. 1992. Temporal importance of greater light interception to increased yield in narrow-row soybean. Agron. J. 84:575579.Google Scholar
Bozsa, R. C., Oliver, L. R., and Driver, T. L. 1989. Intraspecific and interspecific sicklepod (Cassia obtusifolia) interference. Weed Sci. 37:670673.CrossRefGoogle Scholar
Bridges, D. C. and Walker, R. H. 1987. Economics of sicklepod (Cassia obtusifolia) management. Weed Sci. 35:594598.Google Scholar
Buehring, N. W., Nice, G. R. W., and Shaw, D. R. 2002. Sicklepod (Senna obtusifolia) control and soybean (Glycine max) response to soybean row spacing and population in three weed management systems. Weed Technol. 16:131141.CrossRefGoogle Scholar
Dalley, C. D., Kells, J. J., and Renner, K. A. 2004. Effect of glyphosate application timing and row spacing on weed growth in corn (Zea mays) and soybean (Glycine max). Weed Technol. 18:177182.Google Scholar
Egley, G. H. and Chandler, J. M. 1983. Longevity of weed seeds after 5.5 years in the Stoneville 50-year buried-seed study. Weed Sci. 31:264270.CrossRefGoogle Scholar
Fehr, W. R. and Caviness, C. E. 1977. Stage of Soybean Development. Pages 12. Iowa State University of Science and Technology Special Rep. 80.Google Scholar
Frederick, J. R., Bauer, P. J., Busscher, W. J., and McCutcheon, G. S. 1998. Tillage management for doublecropped soybean grown in narrow and wide row width culture. Crop Sci. 38:755762.Google Scholar
Hartzler, R. G., Battles, B. A., and Nordby, D. 2004. Effect of common waterhemp (Amaranthus rudis) emergence date on growth and fecundity in soybean. Weed Sci. 52:242245.Google Scholar
Hock, S. M., Knezevic, S. Z., Martin, A. R., and Lindquist, J. L. 2005. Influence of soybean row width and velvetleaf emergence time on velvetleaf (Abutilon theophrasti). Weed Sci. 53:160165.Google Scholar
Howe, O. W. III and Oliver, L. R. 1987. Influence of soybean (Glycine max) row spacing on pitted morningglory (Ipomoea lacunosa) interference. Weed Sci. 25:737744.Google Scholar
Issacs, 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. 37:761765.Google Scholar
[ISTA] International Seed Testing Association 1985. International rules for seed testing 1985. Seed Sci. Technol. 13:327483.Google Scholar
Mickelson, J. A. and Renner, K. A. 1997. Weed control using reduced rates of postemergence herbicides in narrow and wide row soybean. J. Prod. Agric. 10:431437.Google Scholar
[NASS] National Agricultural Statistics Service 2001. Acreage. Released June 30, 2001. http://usda.mannlib.cornell.edu. Accessed March 7, 2006.Google Scholar
Nelson, K. A. and Renner, K. A. 1999. Weed management in wide and narrow-row glyphosate-resistant soybean. J. Prod. Agric. 12:460465.CrossRefGoogle Scholar
Nice, G. R. W., Buehring, N. W., and Shaw, D. R. 2001. Sicklepod response to shading, soybean (Glycine max) row spacing, and population in three management systems. Weed Technol. 15:155162.CrossRefGoogle Scholar
Nordby, D. E. and Hartzler, R. G. 2004. Influence of corn on common waterhemp (Amaranthus rudis) growth and fecundity. Weed Sci. 52:255259.Google Scholar
Norsworthy, J. K. 2003. Use of soybean production surveys to determine weed management needs of South Carolina farmers. Weed Technol. 17:195201.Google Scholar
Norsworthy, J. K. 2004. Effect of soybean canopy formation on pitted morningglory (Ipomoea lacunosa), common cocklebur (Xanthium strumarium), and sicklepod (Senna obtusifolia) emergence. Weed Sci. 52:954960.Google Scholar
Norsworthy, J. K. and Oliveira, M. J. 2006. Sicklepod (Senna obtusifolia) germination and emergence as affected by environmental factors and burial depth. Weed Sci. 54:903909.Google Scholar
Oliveira, M. J. and Norsworthy, J. K. 2005. Effect of drill-seeded soybean and tillage on temporal emergence of sicklepod. Proc South. Weed Sci. Soc. 58:62.Google Scholar
Ratnayake, S. and Shaw, D. R. 1992. Effects of harvest-aid herbicides on sicklepod (Cassia obtusifolia) seed yield and quality. Weed Technol. 6:985989.CrossRefGoogle Scholar
Senseman, S. A. and Oliver, L. R. 1993. Flowering patterns, seed production, and somatic polymorphism of three weed species. Weed Sci. 41:418425.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. 45:497501.Google Scholar
Thomas, W. E., Pline-Srnić, W. A., Viator, R. P., and Wilcut, J. W. 2005. Effects of glyphosate application timing and rate on sicklepod (Senna obtusifolia) fecundity. Weed Technol. 19:5561.Google Scholar
Tingle, C. H. and Chandler, J. M. 2003. Influence of environmental factors on smellmelon (Cucumis melo var. dudaim Naud.) germination, emergence, and vegetative growth. Weed Sci. 51:5659.Google Scholar
Webster, T. M. 2005. Weed survey—southern states. Proc. South. Weed Sci. Soc. 58:291306.Google Scholar
Webster, T. M. and Coble, H. D. 1997. Changes in the weed species composition of the southern United States: 1974 to 1995. Weed Technol. 11:308317.Google Scholar
Yelverton, F. H. and Coble, H. D. 1991. Narrow row spacing and canopy formation reduces weed resurgence in soybeans (Glycine max). Weed Technol. 5:169174.Google Scholar
Young, B. G., Young, J. M., Gonzani, 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. 15:112121.Google Scholar