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Competitive Relationships Among Winter Wheat (Triticum aestivum), Jointed Goatgrass (Aegilops cylindrica), and Downy Brome (Bromus tectorum)

Published online by Cambridge University Press:  12 June 2017

Gwen F. Fleming ,
Frank L. Young  and
Alex G. Ogg Jr.
Gwen F. Fleming
Affiliation:
Dep. Agron. and Soils, Washington State Univ., Pullman, WA 99164
Frank L. Young
Affiliation:
U.S. Dep. Agric., Agric. Res. Serv., 215 Johnson Hall, Washington State Univ., Pullman, WA 99164
Alex G. Ogg Jr.
Affiliation:
U.S. Dep. Agric., Agric. Res. Serv., 215 Johnson Hall, Washington State Univ., Pullman, WA 99164
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Abstract

In three replacement series experiments, winter wheat (Triticum aestivum L.), jointed goatgrass (Aegilops cylindrica Host. #3 AEGCY), and downy brome (Bromus tectorum L. # BROTE) were paired in all possible combinations to determine competitive relationships during vegetative growth. Under growth chamber conditions of ample fertility and soil moisture and day/night temperatures of 18/10 C, relative yield totals for the three species were similar, indicating that they compete for the same resources. Both winter wheat and jointed goatgrass had greater plant growth and higher relative crowding coefficients than downy brome, which indicated a hierarchy of relative competitiveness of winter wheat > jointed goatgrass >> downy brome. In other growth chamber studies, winter wheat was slightly more competitive than jointed goatgrass regardless of fertility levels. Winter wheat was the superior competitor at 18/10 C and −33 kPa (soil moisture), whereas jointed goatgrass was superior at 27/10 C and −300 kPa, conditions that are frequently encountered in the Pacific Northwest.

Keywords

Relative crowding coefficientrelative yieldrelative yield totalreplacement studiesBROTEAEGCY
Type
Weed Biology and Ecology
Information
Weed Science , Volume 36 , Issue 4 , July 1988 , pp. 479 - 486
Copyright
Copyright © 1988 by the Weed Science Society of America 

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References

Literature Cited

1. Firbank, L. G. and Watkinson, A. R. 1985. On the analysis of competition within two-species mixtures of plants. J. Appl. Ecol. 22:503–517.Google Scholar
2. Harper, J. L. 1977. Mixtures of species. I. Space and proportions. Page 237–276 in Population Biology of Plants. Academic Press, New York.Google Scholar
3. Harris, G. A. 1967. Some competitive relationships between Agropyron spicatum and Bromus tectorum . Ecol. Monogr. 37:89–111.Google Scholar
4. Hitchcock, A. S. 1950. Manual of the grasses of the United States. Misc. Publ. 206. U.S. Dep. Agric. Page 245.Google Scholar
5. Jolliffe, P. A., Minjas, A. N., and Runeckles, V. C. 1984. A reinterpretation of yield relationships in replacement series experiments. J. Appl. Ecol. 21:227–243.Google Scholar
6. Maan, S. S. 1976. Cytoplasmic homology between Aegilops squarrosa L. and Aegilops cylindrica Host. Crop Sci. 16:756–758.Google Scholar
7. Morrow, L. A. and Stahlman, P. W. 1984. The history and distribution of downy brome (Bromus tectorum) in North America. Weed Sci. 32, Suppl. 1:2–6.Google Scholar
8. Morrow, L. A., Young, F. L., and Flom, D. G. 1982. Seed germination and seedling emergence of jointed goatgrass (Aegilops cylindrica). Weed Sci. 30:395–398.Google Scholar
9. Peterson, C. M., Klepper, B., and Rickman, R. W. 1982. Tiller development at the coleoptilar node in winter wheat. Agron. J. 74:781–784.Google Scholar
10. Radosevich, S. R. and Holt, J. S. 1987. Plant growth and interference. Page 93–138 in Weed Ecology: Implications for Vegetation Management. John Wiley and Sons, New York.Google Scholar
11. Roush, M. L. and Radosevich, S. R. 1985. Relationships between growth and competitiveness of four annual weeds. J. Appl. Ecol. 22:895–905.Google Scholar
12. Rydrych, D. J. and Muzik, T. J. 1968. Downy brome competition and control in dryland wheat. Agron. J. 60:279–280.Google Scholar
13. Rydrych, D. J. 1974. Competition between winter wheat and downy brome. Weed Sci. 22:211–214.Google Scholar
14. Thill, D. C., Schirman, R., and Appleby, A. P. 1979. Influence of soil moisture, temperature, and compaction on the germination of downy brome (Bromus tectorum). Weed Sci. 27:625–630.CrossRefGoogle Scholar
15. U.S. Dep. Agric., Agric. Res. Serv. 1970. Pages 32, 46–47, in Selected Weeds of the United States. Agric. Handb. No, 366.Google Scholar
16. Upadhyaya, M. K., Turkington, R., and McIlvride, D. 1986. The biology of Canadian weeds. 75. Bromus tectorum L. Can. J. Plant Sci. 66:689–709.CrossRefGoogle Scholar
17. Weed Sci. Soc. Am. 1984. Downy brome (Bromus tectorum) history, biology, and control in agricultural production systems. Weed Sci. 32, Suppl. 1:31.Google Scholar
18. Wicks, G. A., Burnside, O. C., and Fenster, C. R. 1971. Influence of soil type and depth of planting on downy brome seed. Weed Sci. 19:82–86.Google Scholar
19. de Wit, C. T. 1960. On competition. Versl. Landbouwk. Onderz. No. 66. 8. Wageningen, The Netherlands. 82 pp.Google Scholar
20. de Wit, C. T. and van den Bergh, J. P. 1965. Competition among herbage plants. Netherlands J. of Agric. Sci. 13:212–221.Google Scholar