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United States Department of Agriculture

Agricultural Research Service

Title: KOCHIA (KOCHIA SCOPARIA) INTERFERENCE WITH OAT (AVENA SATIVA).)

Author
item Manthey, Frank
item Hareland, Gary
item Zollinger, Richard
item Huseby, Donna

Submitted to: Weed Technology
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 12/5/1995
Publication Date: N/A
Citation: N/A

Interpretive Summary: A field experiment was conducted over four years to determine the effect of season-long competition from the serious weed pest, kochia, on oat yield and quality. Kochia competition and interference with oat development did not affect oat height, test weight, 500-kernel weight, or groat percentage. Similarly, ash, starch, and total beta-glucan (dietary fiber) percentages in oat groat were not affected by kochia interference. Oat grain yield was reduced in 1991 and 1994 by 50 kochia/m2, the highest density. Lipid(oil) and protein content were not affected by kochia except in 1992 where protein content was reduced and lipid content was increased by kochia.

Technical Abstract: A field experiment was conducted over four years to determine the effect of season-long kochia interference on oat yield and quality. Kochia interference with oat did not affect oat height, test weight, 500-kernel weight, or groat percentage. Similarly, ash, starch, and total beta-glucan percentages in oat groat were not affected by kochia interference. Oat grain yield was reduced in 1991 and 1994 by 50 kochia/m2, the highest density. Lipid and protein content were not affected by kochia except in 1992 where protein content was reduced and lipid content was increased by kochia.

Last Modified: 05/29/2017
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