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DOI: | 10.11/j.1365-3180.2008.00590.x |
Web URL(s): | http://onlinelibrary.wiley.com/doi/10.1111/j.1365-3180.2008.00590.x/full Last checked: 01/31/2014 Access conditions: Item is within a limited-access website http://onlinelibrary.wiley.com/doi/10.1111/j.1365-3180.2008.00590.x/pdf Last checked: 01/31/2014 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Martínez-Ghersa, M. A.;
Olszyk, D.;
Radosevich, S. R. |
Author Affiliation: | Martínez-Ghersa: IFEVA-CONICET, Dto. Recursos Naturales y Ambiente, Facultad de Agronomía, Universidad de Buenos Aires, Buenos Aires, Argentina; Olszyk: Western Ecology Division, US Environemtnal Protection Agency National Health and Environmental Effect Laboratory; Radosevich: Dept. Forest Science, Oregon State University, Corvallis, OR, USA |
Title: | Growth and yield responses of Italian ryegrass (Lolium multiflorum) to diclofop-methyl and ozone |
Section: | Research papers Other records with the "Research papers" Section
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Source: | Weed Research. Vol. 48, No. 1, February 2008, p. 68-77. |
Publishing Information: | Oxford: Blackwell Scientific Publications |
# of Pages: | 10 |
Related Web URL: | http://onlinelibrary.wiley.com/doi/10.1111/j.1365-3180.2008.00590.x/abstract Last checked: 01/31/2014 Notes: Abstract only |
Keywords: | TIC Keywords: Air pollutants; Biomass; Diclofop methyl; Growth factors; Herbicide application; Leaf area; Lolium multiflorum; Ozone; Phytotoxicity; Seed production; Tiller density; Yield response
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Abstract/Contents: | "We evaluated the combined effects of diclofop-methyl herbicide application and the air pollutant ozone (O3) on diclofop-methyl-resistant and -susceptible biotypes of Italian ryegrass (Lolium multiflorum). We conducted two experiments, one with a long vegetative growth period and the other with a short vegetative growth in late spring with seed production in summer. As expected, because of its phytotoxicity, the herbicide alone reduced total vegetative biomass, leaf area, tiller number and seed production at most sampling periods in susceptible plants for both experiments. However, it had variable effects on resistant plants, including a positive effect on seed production. Ozone alone delayed vegetative biomass accumulation and reduced leaf area and seed biomass in both experiments. However, the effects of O3 on some parameters were altered by herbicide rate and / or biotype. Especially notable was a greater reduction in seed biomass because of O3 in resistant than in susceptible plants with no herbicide. If these apparent differential responses to herbicide and O3 stress of susceptible and resistant plants are confirmed and persist over time, evolutionary tradeoffs may occur. For example, the frequency of resistant plants in a population may be altered in response to interactions between herbicides and other anthropogenic stresses." |
Language: | English |
References: | 39 |
Note: | Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Martínez-Ghersa, M. A., D. Olszyk, and S. R. Radosevich. 2008. Growth and yield responses of Italian ryegrass (Lolium multiflorum) to diclofop-methyl and ozone. Weed Res. 48(1):p. 68-77. |
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| DOI: 10.11/j.1365-3180.2008.00590.x |
| Web URL(s): http://onlinelibrary.wiley.com/doi/10.1111/j.1365-3180.2008.00590.x/full Last checked: 01/31/2014 Access conditions: Item is within a limited-access website http://onlinelibrary.wiley.com/doi/10.1111/j.1365-3180.2008.00590.x/pdf Last checked: 01/31/2014 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: b2221093 |
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