Screening for Herbicide Resistance in Weeds

Diagnosing herbicide-resistant weeds as a first step in resistance management and monitoring their nature, distribution, and abundance demands efficient and effective screening tests. This review summarizes and recommends appropriate seed sampling techniques, protocols for screening weeds for resist...

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Bibliographic Details
Published in:Weed technology 2000-04, Vol.14 (2), p.428-445
Main Authors: Hugh J. Beckie, Ian M. Heap, Reid J. Smeda, Hall, Linda M.
Format: Article
Language:English
Subjects:
Bioassay
Biological and medical sciences
Chemical control
Dose response relationship
Fluorescence
Fundamental and applied biological sciences. Psychology
Herbicide resistance
Herbicide resistant weeds
Herbicides
Oats
Parasitic plants. Weeds
Phytopathology. Animal pests. Plant and forest protection
Plants
Review
Screening tests
Seedlings
Weeds
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Description
Summary:Diagnosing herbicide-resistant weeds as a first step in resistance management and monitoring their nature, distribution, and abundance demands efficient and effective screening tests. This review summarizes and recommends appropriate seed sampling techniques, protocols for screening weeds for resistance to herbicides of different sites of action, interpretation of results, and information given to the grower. Elements common to all screening procedures are reviewed. Choosing appropriate discriminating doses to distinguish between resistant and susceptible weed biotypes is the most important factor in achieving accurate and consistent results. Interpretation of results is also critical because resistant weeds may comprise a small portion of the population in suspected accessions or biotypes.
ISSN:0890-037X
1550-2740
DOI:10.1614/0890-037X(2000)014[0428:SFHRIW]2.0.CO;2