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| DOI: | 10.4141/cjps91-114 |
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| Web URL(s): | http://pubs.aic.ca/doi/pdfplus/10.4141/cjps91-114
Last checked: 10/01/2015
Requires: PDF Reader
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| Publication Type:
| Refereed |
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| Author(s): | Tardif, François J.;
Leroux, Gilles D. |
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| Author Affiliation: | Départment de phytologie, Université Laval, Cité Universitaire, Québec, Canada |
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| Title: | Response of quackgrass biotypes to glyphosate and quizalofop |
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| Source: | Canadian Journal of Plant Science. Vol. 71, No. 3, July 1991, p. 803-810. |
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| Publishing Information: | Ottawa: Agricultural Institute of Canada |
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| # of Pages: | 8 |
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| Keywords: | TIC Keywords: Elymus repens; Biotypes; Glyphosate; Quizalofop; Rhizomes; Weed control; Shoots
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| Abstract/Contents: | "The response to glyphosate of quizalofop and quizalofop of five quackgrass (Elytrigia repens (L.) Nevski) biotypes treated at the three- to four-leaf and six- to seven-leaf stage was tested. Shoot and rhizome-bud control 1 yr after treatment did not differ among biotypes treated at the three- to four-leaf stage regardless of the herbicides and rates. At the six-to seven-leaf stage, difference in shoot control between the most tolerant and the most sensitive biotypes was 54 and 40% after treatment with quizalofop at 100 and 150 g a.i. ha-1, respectively. Shoot control at the six- to seven-leaf stage ranged between 59 and 97%, with glyphosate at 450 g a.i. ha-1. When averaged over all treatments and stages of growth, control of shoot number was positively correlated with control of rhizome bud number. A negative correlation existed between the percent shoot control at the six- to seven-leaf stage and the number of tillers, rhizomes, and rhizome buds, and with the total biomass of the biotypes at time of treatment with quizalofop at 100 g ha-1. Leaf retention on the lower leaves of plants at the three- to four-leaf stage varied among biotypes, but was not related to treatment tolerance." |
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| Language: | English |
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| References: | 21 |
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| Note: | Tables
Abstract also appears in French |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Tardif, F. J., and G. D. Leroux. 1991. Response of quackgrass biotypes to glyphosate and quizalofop. Can. J. Plant Sci. 71(3):p. 803-810. |
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| DOI: 10.4141/cjps91-114 |
| Web URL(s):
http://pubs.aic.ca/doi/pdfplus/10.4141/cjps91-114
Last checked: 10/01/2015
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: SB 1 .C3 |
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