Hostname: page-component-78c5997874-94fs2 Total loading time: 0 Render date: 2024-11-05T12:17:54.519Z Has data issue: false hasContentIssue false
  • English
  • Français

Wheat Plant Density Influences Jointed Goatgrass (Aegilops cylindrica) Competitiveness

Published online by Cambridge University Press:  20 January 2017

Brady F. Kappler ,
Drew J. Lyon ,
Phillip W. Stahlman ,
Stephen D. Miller  and
Kent M. Eskridge
Brady F. Kappler*
Affiliation:
University of Nebraska Panhandle Research and Extension Center, 4502 Avenue I, Scottsbluff, NE 69361
Drew J. Lyon
Affiliation:
University of Nebraska Panhandle Research and Extension Center, 4502 Avenue I, Scottsbluff, NE 69361
Phillip W. Stahlman
Affiliation:
Kansas State University Agricultural Research Center—Hays, 1232 240th Avenue, Hays, KS 67601
Stephen D. Miller
Affiliation:
University of Wyoming, Plant Science Division, Laramie, WY 82071
Kent M. Eskridge
Affiliation:
Department of Biometry, 103 Miller Hall, University of Nebraska, Lincoln, NE 68583-0630
*
Corresponding author's E-mail: bkappler1@unl.edu.
Get access Rights & Permissions [Opens in a new window]

Abstract

Jointed goatgrass is a problem weed in winter wheat production areas of the Great Plains. Winter wheat seeding rates are easily adjusted by the growers and influence competition by some weeds. Field experiments were initiated in Kansas, Nebraska, and Wyoming using winter wheat cultivars selected from leading adapted cultivars from each region to determine the effect of wheat plant density in the fall on jointed goatgrass competitiveness. Three winter wheat seeding rates (50, 67, and 84 kg seeds/ha) were used at Hays, KS, and Sidney, NE, and four seeding rates (33, 50, 67, and 101 kg seeds/ha) were used at Torrington and Archer, WY. An analysis of covariance model was fit with winter wheat fall plant density as the covariate. In 1996, winter wheat grain contamination (dockage) was reduced at the rate of about 6% for every 10 additional wheat plants/m2 above the threshold density of 70 plants/m2 at Archer, WY, and at the rate of about 0.5% for every 10 additional wheat plants/m2 above the threshold density of 110 plants/m2 at Hays, KS. At Hays the reduction occurred only with the semidwarf cultivar ‘Vista’. Increased wheat density reduced jointed goatgrass reproductive tillers in four out of six location–year combinations and biomass in two out of four location–year combinations. Despite the lack of a consistent reduction in jointed goatgrass competitiveness as the result of increased wheat density, increased seeding rates may be a good, low-cost, long-term investment as part of an integrated jointed goatgrass control program in winter wheat.

Keywords

Jointed goatgrassAegilops cylindrica Host. #3 AEGCY; winter wheatTriticum aestivum L.Interferenceplant competition
Type
Research
Information
Weed Technology , Volume 16 , Issue 1 , March 2002 , pp. 102 - 108
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

Anderson, R. L. 1993. Jointed goatgrass (Aegilops cylindrica) ecology and interference in winter wheat. Weed Sci. 41: 388–393.CrossRefGoogle Scholar
Anderson, R. L. 1997. Cultural systems can reduce reproductive potential of winter annual grasses. Weed Technol. 11: 608–613.CrossRefGoogle Scholar
Beuerlein, J. E. and LaFever, H. N. 1989. Yield of soft red winter wheat as affected by row spacing and seeding rate. Appl. Agric. Res. 4: 47–50.Google Scholar
Blue, E. N., Mason, S. C., and Sander, D. H. 1990. Influence of planting rate, seeding rate, and phosphorous rate on wheat yield. Agron. J. 82: 762–768.Google Scholar
Bowden, W. M. 1959. The taxonomy and nomenclature of the wheats, barleys, and ryes, and their wild relatives. Can. J. Bot. 37: 657–684.Google Scholar
Darwinkle, A. 1978. Patterns of tillering and grain production of winter wheat at a wide range of plant densities. Neth. J. Agric. Sci. 26: 383–398.Google Scholar
Donald, W. W. 1991. Seed survival, germination ability, and emergence of jointed goatgrass (Aegilops cylindrica). Weed Sci. 39: 210–215.CrossRefGoogle Scholar
Donald, W. W. and Ogg, A. G. Jr. 1991. Biology and control of jointed goatgrass (Aegilops cylindrica), a review. Weed Technol. 5: 3–17.Google Scholar
Dotray, P. A. and Young, F. L. 1993. Characterization of root and shoot development of jointed goatgrass (Aegilops cylindrica). Weed Sci. 41: 353–361.CrossRefGoogle Scholar
Dowdy, S. and Wearden, S. 1985. Statistics for Research. 2nd ed. New York: J. Wiley. pp. 437–450.Google Scholar
[FGIS] Federal Grain Inspection Service. 1993. USDA-FGIS Grain Inspection Handbook. Washington: U.S. Government Printing Office.Google Scholar
Fleming, G. F., Young, F. L., and Ogg, A. G. 1988. Competitive relationships among winter wheat (Triticum aestivum), jointed goatgrass (Aegilops cylindrica), and downy brome (Bromus tectorum). Weed Sci. 36: 479–486.Google Scholar
Frederick, J. R. and Marshall, H. G. 1985. Grain yield and yield components of soft red winter wheat as affected by management practices. Agron. J. 77: 495–499.CrossRefGoogle Scholar
Harrison, K. S. and Beuerlein, J. E. 1989. Effect of herbicide mixtures and seeding rate on soft red winter wheat (Triticum aestivum) yield. Weed Technol. 3: 505–508.Google Scholar
Holtzer, T., Anderson, R., McMullen, M., and Peairs, F. 1996. Integrated pest management for insects, plant pathogens, and weeds in dryland cropping systems of the Great Plains. J. Prod. Agric. 9: 200–208.CrossRefGoogle Scholar
Jasieniuk, M., Maxwell, B. D., Anderson, R. L., et al. 1999. Site-to-site and year-to-year variation in Triticum aestivum-Aegilops cylindrica interference relationships. Weed Sci. 47: 529–537.CrossRefGoogle Scholar
Koscelny, J. A., Peeper, T. F., Solie, J. B., and Solomon, S. G. Jr. 1990. Effect of wheat (Triticum aestivum) row spacing, seeding rate, and cultivar on yield loss from cheat (Bromus secalinus). Weed Technol. 4: 487–492.Google Scholar
Koscelny, J. A., Peeper, T. F., Solie, J. B., and Solomon, S. G. Jr. 1991. Seeding date, seeding rate, and row spacing affect wheat (Triticum aestivum) and cheat (Bromus secalinus). Weed Technol. 5: 707–712.Google Scholar
Ogg, A. G. and Seefeldt, S. S. 1999. Characterizing traits which enhance competitiveness of winter wheat (Triticum aestivum) against jointed goatgrass (Aegilops cylindrica). Weed Sci. 47: 74–80.CrossRefGoogle Scholar
Seefeldt, S. S., Ogg, A. G., and Hou, Y. 1999. Near-isogenic lines for Triticum aestivum height and crop competitiveness. Weed Sci. 47: 316–320.CrossRefGoogle Scholar
[SAS] Statistical Analysis Systems. 1996. SAS User's Manual. Version 6.12. Cary, NC: Statistical Analysis Systems Institute.Google Scholar
Tompkins, D. K., Fowler, D. B., and Wright, A. T. 1991. Water use by no-till winter wheat influence of seed rate and row spacing. Agron. J. 83: 766–776.Google Scholar