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Wednesday, October 9, 2024
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Search the Herbicide-Resistance Reference Database
Searches the reference database - authors, title, abstract, and keywords fields. Not case sensitive.
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REFERENCES
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Hall, L. M. ; Beckie, H. J. ; Low, R. ; Shirriff, S. W. ; Blackshaw, R. E. ; Kimmel, N. ; Neeser, C.
.
2014
.
Survey of glyphosate-resistant kochia (
Kochia scoparia
L. Schrad.) in Alberta
.
Canadian Journal of Plant Science
94
:
127 - 130
.
Glyphosate-resistant (GR) kochia was identified in Warner county in southern Alberta in 2011. To determine the scale of the distribution and frequency of GR kochia, a randomized stratified survey of more than 300 locations (one population per location) in southern Alberta was conducted in the fall of 2012. Mature plants were collected, seed separated, and F
1
seedlings screened by spraying with glyphosate at 900 g a.e. ha
-1
under greenhouse conditions. Screening confirmed 13 GR kochia sites: seven in Warner county, five in Vulcan county, and one in Taber county. The frequency of GR individuals in a population ranged from 0.3 to 98%. GR kochia were found in arid areas where chemical fallow is a significant component of the rotation. Economic and agronomic impact of this GR weed biotype is compounded because of multiple resistance to acetolactate synthase-inhibiting herbicides.
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PERMISSION MUST BE OBTAINED FIRST if you intend to base a significant portion of a scientific paper on data derived from this site.
Cite this site as:
Heap, I. The International Survey of Herbicide Resistant Weeds. Online. Internet.
Wednesday, October 9, 2024
. Available
www.weedscience.org
Copyright � 1993-
2024
WeedScience.org All rights reserved. Fair use of this material is encouraged. Proper citation is requested.
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