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Environment Influences Green Foxtail (Setaria viridis) Competition with Wheat (Triticum aestivum)

Published online by Cambridge University Press:  12 June 2017

Dallas E. Peterson  and
John D. Nalewaja
Dallas E. Peterson
Affiliation:
Crop and Weed Sci. Dep., N. Dak. State Univ., Fargo, ND 58105
John D. Nalewaja
Affiliation:
Crop and Weed Sci. Dep., N. Dak. State Univ., Fargo, ND 58105
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Abstract

Temperature, soil moisture, green foxtail density, relative emergence dates, and soil fertility effects on green foxtail and spring wheat competition were evaluated in controlled environments. Green foxtail competition was highest at 30 C and without moisture stress. Early green foxtail emergence increased competition with wheat more than changes in temperature, soil moisture, or green foxtail density. At 30 C, wheat fresh weight was reduced 50% by green foxtail seeded 4 d before wheat, but only 13% by foxtail seeded 4 d after wheat. Doubling the nitrogen and total nutrient concentration did not increase wheat growth, but increased foxtail weight 41 and 75%, respectively.

Keywords

Wheat, Triticum aestivum L.green foxtail, Setaria viridis (L.) Beauv. ♯ SETVIWeed interferenceweed densitycritical periodfertilitySETVI
Type
Research
Information
Weed Technology , Volume 6 , Issue 3 , September 1992 , pp. 607 - 610
Copyright
Copyright © 1990 by the Weed Science Society of America 

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References

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