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Sampling Wheat (Triticum aestivum) at the Elevator for Jointed Goatgrass (Aegilops cylindrica)

Published online by Cambridge University Press:  12 June 2017

Drew J. Lyon ,
John A. Smith  and
David D. Jones
Drew J. Lyon
Affiliation:
Univ. Nebraska, Scottsbluff, NE 69361
John A. Smith
Affiliation:
Univ. Nebraska, Scottsbluff, NE 69361
David D. Jones
Affiliation:
Univ. Nebraska, Lincoln, NE 68583-0726
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Abstract

Winter wheat grain contaminated with jointed goatgrass joints is often discounted as much as 20% by grain buyers. A mail survey to Nebraska farmers in 1984 identified jointed goatgrass as one of the ten worst weed problems in winter wheat, but a field survey to the same area in 1986 found it in less than 1% of surveyed fields. The objective of this survey was to map the geographic distribution and severity of jointed goatgrass contaminating winter wheat grain in western Nebraska. Jointed goatgrass was found in 25, 29, and 20% of all wheat samples collected in 1990, 1991, and 1992, respectively. Nebraska counties bordering Colorado were found to have the highest percentage of wheat samples contaminated with jointed goatgrass joints, ranging from 23% in Cheyenne county in 1992 to 61% in Keith county in 1991.

Keywords

Jointed goatgrass, Aegilops cylindrica Host. # AEGCYwinter wheat, Triticum aestivum L.Weed surveyTriticum aestivumAEGCY
Type
Research
Information
Weed Technology , Volume 8 , Issue 1 , March 1994 , pp. 64 - 68
Copyright
Copyright © 1994 by the Weed Science Society of America 

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References

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