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Effect of Duration of Green Foxtail (Setaria viridis) Competition on Potato (Solanum tuberosum) Yield

Published online by Cambridge University Press:  12 June 2017

David A. Wall  and
George H. Friesen
David A. Wall
Affiliation:
Agric. Can. Res. Stn., P.O. Box 3001, Morden, Mb., Canada R0G 1J0
George H. Friesen
Affiliation:
Agric. Can. Res. Stn., P.O. Box 3001, Morden, Mb., Canada R0G 1J0
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Abstract

The effects of different periods of green foxtail competition on the components of potato yield were investigated. Delaying the removal of green foxtail for 2 wk following crop emergence reduced total and marketable tuber yield by 19 and 29%, respectively, when averaged over 2 yr. Similarly, the number and average weight of marketable tubers were reduced by 24 and 6%, respectively. The proportion of unmarketable tubers comprising the total yield increased as the duration of weed competition was increased. Successively longer periods of green foxtail competition further decreased the measured parameters.

Keywords

Green foxtail, Setaria viridis (L.) Beauv. ♯3 SETVIpotato, Solanum tuberosum L., ‘Russet Burbank’CompetitionRusset BurbankSETVI
Type
Research
Information
Weed Technology , Volume 4 , Issue 3 , September 1990 , pp. 539 - 542
Copyright
Copyright © 1990 Weed Science Society of America 

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References

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