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Early-Harvest Barley (Hordeum vulgare) Silage Reduces Wild Oat (Avena fatua) Densities Under Zero Tillage

Published online by Cambridge University Press:  20 January 2017

K. Neil Harker ,
Kenneth J. Kirkland ,
Vern S. Baron  and
George W. Clayton
K. Neil Harker*
Affiliation:
Lacombe Research Centre, Agriculture and Agri-Food Canada, 6000 C & E Trail, Lacombe, AB, Canada T4L 1W1
Kenneth J. Kirkland
Affiliation:
RR #1, Box 4, Vermilion, AB, Canada T9X 1Y6
Vern S. Baron
Affiliation:
Lacombe Research Centre, Agriculture and Agri-Food Canada, 6000 C & E Trail, Lacombe, AB, Canada T4L 1W1
George W. Clayton
Affiliation:
Lacombe Research Centre, Agriculture and Agri-Food Canada, 6000 C & E Trail, Lacombe, AB, Canada T4L 1W1
*
Corresponding author's E-mail: harkerk@agr.gc.ca
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Abstract

Effective, long-term wild oat management requires an integrated approach that uses management techniques beyond simple herbicide application. A 5-yr (1996 to 2000) zero tillage study was conducted to assess the influence of barley harvest timing on wild oat densities in subsequent years at Lacombe, AB, Canada and Melfort, SK, Canada. Harvest timings included barley harvested 1 wk after heading (early), approximately 14 to 16 d later at the soft dough stage (normal), and at maturity (grain). In the absence of herbicides, wild oat densities decreased in silage plots harvested early and increased in grain plots. Reductions were more distinct at Lacombe where barley phenological differences and whole plant moisture contents between early and normal silage harvests were greater than at Melfort. Half rates of wild oat herbicides (ICIA 0604 and imazamethabenz) did not augment reductions in wild oat densities after early silage harvest, but did improve wild oat management after normal silage harvest, and in grain production. At Lacombe, early silage harvest reduced wild oat densities more than did herbicides in grain production. Similar trends were apparent at Melfort but were not statistically significant. Early barley silage harvests may be an effective integrated weed management tool for wild oat.

Keywords

ICIA 0604 (proposed common name: tralkoxydim), 2-[1-(ethoxyimino)propyl]-3-hydroxy-5-(2,4,6-trimethylphenyl)cyclohex-2-enoneimazamethabenzwild oat, Avena fatua L. #3 AVEFAbarley, Hordeum vulgare L. (‘AC Lacombe’)Cultural controlgreen forageintegrated weed managementseed raintiming
Type
Research
Information
Weed Technology , Volume 17 , Issue 1 , March 2003 , pp. 102 - 110
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Ali, S. 2001. Crop Protection 2001. Edmonton, AB, Canada: Publications Office, Alberta Agriculture, Food and Rural Development. Agdex 606-1. 501 p.Google Scholar
Banting, J. D. 1962. The dormancy behavior of Avena fatua L. in cultivated soil. Can. J. Plant Sci. 42: 22–39.CrossRefGoogle Scholar
Banting, J. D. 1969. Future developments in wild oat control. Proc. 16th Meet. Agric. Pestic. Technol. Soc. 37: 9.Google Scholar
Baron, V. S., Dick, A. C., and Wolynetz, M. S. 1992. Characterization of barley silage—maturity relationships for central Alberta. Can. J. Plant Sci. 72: 1009–1020.Google Scholar
Beckie, H. J., Thomas, A. G., Legere, A., Kelner, D. J., Van Acker, R. C., and Meers, S. 1999. Nature, occurrence, and cost of herbicide-resistant wild oat (Avena fatua) in small-grain production areas. Weed Technol. 13: 612–625.Google Scholar
Blackshaw, R. E., O'Donovan, J. T., Sharma, M. P., Harker, K. N., and Maurice, D. 1996. Response of triallate-resistant wild oat (Avena fatua) to alternative herbicides. Weed Technol. 10: 258–262.CrossRefGoogle Scholar
Blackshaw, R. E. and Rode, L. M. 1991. Effect of ensiling and rumen digestion by cattle on weed seed viability. Weed Sci. 39: 104–108.Google Scholar
Conn, J. S. 1990. Seed viability and dormancy of 17 weed species after burial for 4.7 years in Alaska. Weed Sci. 38: 134–138.Google Scholar
Cromar, H. E., Murphy, S. D., and Swanton, C. J. 1999. Influence of tillage and crop residue on postdispersal predation of weed seeds. Weed Sci. 47: 184–194.Google Scholar
Dekker, J. 1997. Weed diversity and weed management. Weed Sci. 45: 357–363.Google Scholar
Dunn, P. P. 1955. Wild oat control on my farm. Proc. 11th N. Cent. Weed Control Conf. 11: 131–132.Google Scholar
Gummesson, G. 1972. Results of long-term trials on the control of Avena fatua. Weeds and weed control. Proc. 13th Swed. Weed Conf. Part 1:E23–E28.Google Scholar
Hall, L. M., Holtum, J. A. M., and Powles, S. B. 1994. Mechanisms responsible for cross resistance and multiple resistance. In Powles, S. B. and Holtum, J.A.M., eds. Herbicide Resistance in Plants: Biology and Biochemistry. Boca Raton, FL: Lewis. pp. 243–261.Google Scholar
Harker, K. N., Blackshaw, R. E., Kirkland, K. J., Derksen, D. A., and Wall, D. 2000. Herbicide-tolerant canola: weed control and yield comparisons in western Canada. Can J. Plant Sci. 80: 647–654.CrossRefGoogle Scholar
Holm, F. A., Kirkland, K. J., and Stevenson, F. C. 2000. Defining optimum herbicide rates and timing for wild oat (Avena fatua) control in spring wheat (Triticum aestivum). Weed Technol. 14: 167–175.Google Scholar
Jasieniuk, M. and Maxwell, B. D. 1994. Population genetics and the evolution of herbicide resistance in weeds. Proceedings of the Herbicide Resistance Workshop; Edmonton, AB, Canada. Phytoprotection 75:(Suppl.). 25–35.Google Scholar
Jennrich, R. I. and Schluchter, M. D. 1986. Unbalanced repeated-measures models with structured covariance matrices. Biometrics 42: 805–820.Google Scholar
Powles, S. B., Preston, C., Bryan, I. B., and Jutsum, A. R. 1997. Herbicide Resistance: Impact and Management. In Sparks, D. L., ed. Advances in Agronomy. Volume 58. San Diego, CA: Academic. pp. 57–93.Google Scholar
Shirtliffe, S. J., Entz, M. H., and Van Acker, R. C. 2000. Avena fatua development and seed shatter as related to thermal time. Weed Sci. 48: 555–560.Google Scholar
Thill, D. C., O'Donovan, J. T., and Mallory-Smith, C. A. 1994. Integrated weed management strategies for delaying herbicide resistance in wild oats. Proceedings of the Herbicide Resistance Workshop; Edmonton, AB, Canada. Phytoprotection 75:(Suppl.). 61–70.Google Scholar
Thurston, J. M. 1959. Weed Studies: Wild Oats. Report of the Rothamsted Experimental Station. 83 p.Google Scholar
Thurston, J. M. 1961. The effect of depth of burying and frequency of cultivation on survival and germination of seeds of wild oats (Avena fatua L. and Avena ludoviciana Dur). Weed Res. 1: 19–31.Google Scholar
Zadok's, J. C., Chang, T. T., and Konzak, C. F. 1974. A decimal code for the growth stage of cereals. Weed Res. 14: 415–421.Google Scholar