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| Web URL(s): | http://www.bioone.org/bioone/?request=get-document&issn=0043-1745&volume=048&issue=05&page=0541
Last checked: 11/2005
Access conditions: Item is within a limited access website |
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| Publication Type:
| Refereed |
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| Author(s): | Olson, Brian L. S.;
Al-Khatib, Kassim;
Stahlman, Phillip;
Isakson, Paul J. |
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| Author Affiliation: | Olson: and Al-Khatib: Corresponding author, Department of Agronomy, Kansas State University, Manhattan, KS; Stahlman: Kansas State University Agricultural Research Center-Hays, Hays, KS; Isakson: Monsanto Co., St. Louis, MO |
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| Title: | Efficacy and metabolism of MON 37500 in Triticum aestivum and weedy grass species as affected by temperature and soil moisture |
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| Section: | Physiology, chemistry, and biochemistry
Other records with the "Physiology, chemistry, and biochemistry" Section
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| Source: | Weed Science. Vol. 48, No. 5, September/October 2000, p. 541-548. |
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| Publishing Information: | Champaign, IL: Weed Science Society of America |
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| # of Pages: | 8 |
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| Keywords: | TIC Keywords: Metabolism; Application methods; Triticum aestivum; Weeds; Temperatures; Soil moisture; Herbicides; Herbicide evaluation; Weed control; Susceptibility; Pesticide fate; Pesticide persistence; Aegilops cylindrica; Avena fatua; Bromus tectorum; Environmental factors; Herbicide injury; Leaf area; Metabolites
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| Abstract/Contents: | "Spray application of 24 and 46 g ha⁻ ¹ MON 37500 was used in efficacy studies, and vacuum infiltration or droplet application of radiolabeled MON 37500 was used in metabolism studies to evaluate temperature and soil moisture on MON 37500 efficacy and metabolism. Day/night temperatures before vs. after application of MON 37500 of 25/23 vs. 25/23, 25/23 vs. 5/3, 5/3 vs. 25/23, and 25/23 vs. 5/3 C were evaluated for the efficacy study, whereas day/night temperatures of 5/3 and 25/23 C were used for the metabolism study. Soil moisture of one-third and full pot capacities was evaluated for both studies. No Triticum aestivum injury was observed at the different temperatures or soil moistures because of rapid metabolism of MON 37500 by T. aestivum. Weed control was greater when the temperature after application was 25/23 C or soil moisture was at full pot capacity than when the temperature was at 5/3 C after application or soil moisture was at one-third pot capacity. Susceptibility to MON 37500 was greatest for Bromus tectorum, moderate for Avena fatua, and least for Aegilops cylindrica. This pattern of susceptibility for the weed species was related to their ability to metabolize MON 37500. Aegilops cylindrica metabolized more MON 37500 in the first 24 h than did A. fatua, whereas B. tectorum metabolized the least MON 37500. Cool air temperatures decreased MON 37500 metabolism in all species, whereas soil moisture had no effect." |
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| Language: | English |
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| References: | 34 |
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| Note: | Figures
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Olson, B. L. S., K. Al-Khatib, P. Stahlman, and P. J. Isakson. 2000. Efficacy and metabolism of MON 37500 in Triticum aestivum and weedy grass species as affected by temperature and soil moisture. Weed Sci. 48(5):p. 541-548. |
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| Web URL(s):
http://www.bioone.org/bioone/?request=get-document&issn=0043-1745&volume=048&issue=05&page=0541
Last checked: 11/2005
Access conditions: Item is within a limited access website |
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MSU catalog number: SB 610 .W38 |
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