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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Myers, P. F.;
Coble, H. D. |
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| Author Affiliation: | Crop Science Department, North Carolina State University |
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| Title: | Effect of imazethapyr on absorption and translocation of fluazifop-p in large crabgrass (Digitaria sanguinalis) |
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| Meeting Info.: | San Antonio, TX: January 14-16, 1991 |
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| Source: | Southern Weed Science Society Proceedings. Vol. 44, 1991, p. 344. |
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| Publishing Information: | Champaign, IL: Southern Weed Science Society. |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Imazethapyr; Fluazifop; Digitaria sanguinalis; Absorption; Translocation
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| Abstract/Contents: | "Our studies indicate that the antagonistic interaction of fluazifop-P and imazethapyr on large crabgrass is not due to the decreased absorption or translocation of fluazifop-P. 14 [superscript] C-labeled fluazifop-P was applied to the middle of the 2nd or 3rd most fully expanded leaf of a large crabgrass plant. Treatments consisted of fluazifop-P applied alone or in combination with imazethapyr at rates of 0.28 and 0.07 kg ai/ha, respectively. The radiolabeled solution was spotted to a 1 cm2 area with a repeating dispenser and supplemented with non-labeled fluazifop-P to deliver a rate of 0.28 kg ai/ha. The area on the leaf to be spotted was covered with aluminum foil prior to overspraying with the respective postemergence treatments. Plants were harvested at 12, 24, 48, and 72 hours after spotting. Plants were sectioned into area above and below treated area on leaf blade, treated area, rest of aboveground plant, and roots. Two washes were done on the treated area to remove unabsorbed material. Sections were combusted using a biological oxidizer and radioactivity counted by liquid scintillation spectrophotometry to determine herbicide distribution. Absorption of labeled fluazifop-P at all harvest times was not significantly decreased by the presence of imazethapyr when compared to fluazifop-P alone. A minimum of 88% of fluaziflop-P applied was absorbed into the plant for both treatments. Translocation from the treated area to other plant sections was similar for both treatments. Approximately 75% of the labeled fluazifop-P remained in the treated area for all harvest times. The next highest distribution (approximately 15%) was found in the area of the leaf blade above the treated area." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Myers, P. F., and H. D. Coble. 1991. Effect of imazethapyr on absorption and translocation of fluazifop-p in large crabgrass (Digitaria sanguinalis). South. Weed Sci. Soc. Proc. 44:p. 344. |
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MSU catalog number: SB 611 .S6 |
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