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Spring Wheat (Triticum aestivum) Growth and Yield as Influenced by Duration of Wild Oat (Avena fatua) Competition

Published online by Cambridge University Press:  12 June 2017

Kenneth J. Kirkland
Kenneth J. Kirkland*
Affiliation:
Agric. Can. Exp. Farm, P.O. Box 10, Scott, Saskatchewan, Canada S0K 4A0
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Abstract

The effect of duration of wild oat competition on spring wheat yield and growth was determined in time-of-removal experiments conducted over a three year study period in Saskatchewan, Canada. Failure to remove wild oat reduced wheat yield 28 and 39% at wild oat populations of 64 and 188 plants per m2, respectively. Wheat yield was not reduced by wild oat densities of 64 or 118 plants per m2 until the six- and seven-leaf stage of wild oat, respectively. Removing wild oat at 64 plants per m2 before the seven-leaf stage and 118 plants per m2 before the five-leaf stage did not increase wheat culm or fresh weight production.

Keywords

Wheat, Triticum aestivum L. ‘Neepawa’wild oat, Avena fatua L. # AVEFAFresh weightcompetitionleaf stageAVEFA
Type
Research
Information
Weed Technology , Volume 7 , Issue 4 , December 1993 , pp. 890 - 893
Copyright
Copyright © 1994 by the Weed Science Society of America 

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References

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