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| Web URL(s): | http://www.bioone.org/doi/pdf/10.1614/WS-06-024.1
Last checked: 10/09/2015
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| Publication Type:
| Refereed |
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| Author(s): | Nandula, Vijay K.;
Poston, Daniel H.;
Reddy, Krishna N.;
Koger, Clifford H. |
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| Author Affiliation: | Nandula and Poston: Delta Research and Extension Center, Mississippi State University, Stoneville, Mississippi; Reddy: USDA-ARS Southern Weed Science Research Unit, Stoneville, Mississippi; and Koger: USDA-ARS Crop Genetics and Production Research Unit , Stoneville, Mississippi University, Stoneville, Mississippi; USDA-ARS Southern Weed Science Research Unit, Stoneville, Mississippi; USDA-ARS Crop Genetics and Production Research Unit, Stoneville, Mississippi |
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| Title: | Formulation and adjuvant effects on uptake and translocation of Clethodim in Bermudagrass (Cynodon dactylon) |
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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. 55, No. 1, January/February 2007, p. 6-11. |
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| Publishing Information: | Champaign, IL: Weed Science Society of America |
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| # of Pages: | 6 |
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| Keywords: | TIC Keywords: Clethodim; Cynodon dactylon; Herbicide trials; Crop oil concentrates; Adjuvants; Herbicide application; Soil absorption; Autoradiography; Herbicide evaluation; Uptake; Translocation
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| Abstract/Contents: | "The effect of formulation and adjuvants on absorption and translocation of 14 C-clethodim was determined at 1, 4, 12, 24, 48, and 72 h after treatment (HAT) in bermudagrass under greenhouse conditions. Absorption of 14 C-clethodim with the 0.12 kg L-1 (15 to 85%) formulation was higher than with the 0.24 kg L-1 (5 to 40%) formulation, regardless of presence or absence of adjuvant. There was considerable variation in the effect of adjuvant on 14 C-clethodim absorption. When either ammonium sulfate (AMS) or AMS plus crop oil concentrate (COC) was added to the 0.12 kg L-1 formulation, 14C-clethodim absoption increased significantly at all harvest times except at 12 HAT compared with 0.12 kg L-1 formulation alone, whereas, 14C-clethodim absorption after addition of COC to the 0.12 kg L-1 formulation was similar to the 0.12 kg L-1 formulation alone up to 24 HAT. Conversly, COC enhanced 14C-absorption at all harvest times when added to 0.24 kg L-1 formulation. Most of 14 C-clethodim (79 to 100%) remained in the treated leaf, independent of formulation or adjuvant. Formulation did not have an impact on distribution of absorbed 14C-clethodim; however, presence of an adjuvant increased movement of 14 C-clethodim out of the treated leaf. Of the absorbed 14 C-label, most remained in the treated leaf. 14C-clethodim that translocated out of the treated leaf remained in the shoot, and negligible amount of 14 C-clethodim translocated to roots. These results demonstrated improved absorption of clethodim with formulation containing half the active ingredient (0.12 kg L-1) and inclusion of both AMS and COC." |
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| Language: | English |
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| References: | 19 |
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| Note: | Figures
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Nandula, V. K., D. H. Poston, K. N. Reddy, and C. H. Koger. 2007. Formulation and adjuvant effects on uptake and translocation of Clethodim in Bermudagrass (Cynodon dactylon). Weed Sci. 55(1):p. 6-11. |
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| Web URL(s):
http://www.bioone.org/doi/pdf/10.1614/WS-06-024.1
Last checked: 10/09/2015
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: SB 610 .W38 |
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