Hostname: page-component-586b7cd67f-vdxz6 Total loading time: 0 Render date: 2024-11-28T06:26:23.249Z Has data issue: false hasContentIssue false
  • English
  • Français

Broadleaf signalgrass (Brachiaria platyphylla) interference in corn

Published online by Cambridge University Press:  20 January 2017

Jason L. Alford ,
Robert M. Hayes ,
G. Neil Rhodes Jr. ,
Lawrence E. Steckel  and
Thomas C. Mueller
Jason L. Alford
Affiliation:
Department of Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, AR 72704
Robert M. Hayes
Affiliation:
Department of Plant Sciences, University of Tennessee–Jackson, Jackson, TN 38305
G. Neil Rhodes Jr.
Affiliation:
Department of Plant Sciences, University of Tennessee–Knoxville, Knoxville, TN 37996-4561
Lawrence E. Steckel
Affiliation:
Department of Plant Sciences, University of Tennessee–Jackson, Jackson, TN 38305
Get access Rights & Permissions [Opens in a new window]

Abstract

Field research was conducted in Tennessee at two locations over 3 yr under no-tillage conditions to examine the interaction of broadleaf signalgrass and corn yield. Broadleaf signalgrass was killed at various time intervals during the growing season by applying postemergent glyphosate. Corn injury was avoided by the use of a glyphosate-tolerant variety. Yield reductions because of broadleaf signalgrass interference occurred with weed densities > 150 plants m−2 and when the corn and weeds emerged simultaneously. Corn had the ability to withstand broadleaf signalgrass presence up to 28 d after planting with no yield loss at all locations.

Keywords

Glyphosatebroadleaf signalgrass, Brachiaria platyphylla (Griseb.) Nash BRAPPcorn, Zea maysInterferencecompetitionyield losslogistic model
Type
Weed Biology and Ecology
Information
Weed Science , Volume 53 , Issue 1 , February 2005 , pp. 97 - 100
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

Burke, I. C., Thomas, W. E., Spears, J. F., and Wilcut, J. W. 2002. Influence of environmental factors on broadleaf signalgrass (Brachiaria platyphylla) germination. Weed Sci 51:683–689.CrossRefGoogle Scholar
Chamblee, R. W., Thompson, L. Jr., and Bunn, T. M. 1982a. Management of broadleaf signalgrass (Brachiaria platyphylla) in peanuts (Arachis hypogaea) with herbicides. Weed Sci 30:40–44.CrossRefGoogle Scholar
Chamblee, R. W., Thompson, L. Jr., and Coble, H. D. 1982b. Interference of broadleaf signalgrass (Brachiaria platyphylla) in peanuts (Arachis hypogaea). Weed Sci 30:45–49.CrossRefGoogle Scholar
Gallaher, K. T., Mueller, T. C., Hayes, R. M., Schwartz, O., and Barrett, M. 1999. Absorption, translocation, and metabolism of primisulfuron and nicosulfuron in broadleaf signalgrass (Brachiaria platyphylla) and corn. Weed Sci 47:8–12.CrossRefGoogle Scholar
Hitchcock, A. S. and Agnes, C. 1971. Manual of the Grasses of the United States. New York: Dover. Pp. 593–594.Google Scholar
Johnson, W. C. and Coble, H. D. 1986. Crop rotation and herbicide effects on the population dynamics of two annual grasses. Weed Sci 34:452–456.CrossRefGoogle Scholar
Krueger, W. A. and Kirksey, K. B. 1993. Postemergence broadleaf signalgrass control in corn. Proc. South. Weed Sci. Soc 46:45.Google Scholar
May, R. M. 2004. Uses and abuses of mathematics in biology. Science 303:790–793.CrossRefGoogle ScholarPubMed
McGregor, J. T., Smith, R. J., and Talbert, R. E. 1988a. Interspecific and intraspecific interference of broadleaf signalgrass (Brachiaria platyphylla) in rice (Oryza sativa). Weed Sci 36:589–593.CrossRefGoogle Scholar
McGregor, J. T., Smith, R. J., and Talbert, R. E. 1988b. Broadleaf signalgrass (Brachiaria platyphylla) duration of interference in rice (Oryza sativa). Weed Sci 36:747–750.CrossRefGoogle Scholar
Mickelson, J. A. and Harvey, R. G. 1999. Relating Eriochloa villosa emergence to interference in Zea mays . Weed Sci 47:571–577.CrossRefGoogle Scholar
Mueller, T. C. and Hayes, R. M. 1997. Effect of tillage and soil-applied herbicides on broadleaf signalgrass (Brachiaria platyphylla) control in corn (Zea mays). Weed Technol 11:698–703.CrossRefGoogle Scholar
Radosevich, S., Holt, J., and Ghersa, C. 1997. Critical period thresholds. Pages 204–206 in Weed Ecology: Implications for Management. 2nd ed. New York: J. Wiley.Google Scholar
[SAS] Statistical Analysis Systems. 2000. SAS User's Guide. Version 8.1. Cary, NC: Statistical Analysis Systems Institute. Pp. 235–237.Google Scholar
Thornley, J. H. M. and Johnson, I. R. 1990. Plant and Crop Modeling: A Mathematical Approach to Plant and Crop Physiology. New York: Academic. 78 p.Google Scholar
Webster, T. M. 2000. The southern states ten most common and ten most troublesome weeds in grass crops. Proc. South. Weed Sci. Soc 53:251.Google Scholar
Zimdahl, R. L. 1988. The concept and application of the critical weed-free period. Pages 145–155 in Altiere, M. A. and Liebman, M. eds. Weed Management in Agroecosystems: Ecological Approaches. Boca Raton, FL: CRC.Google Scholar