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Publication Type:
| Report |
Content Type: | Abstract or Summary only |
Author(s): | Reddy, Krishna N.;
Bendixen, Leo E. |
Author Affiliation: | Ohio Sate University |
Title: | Toxicity, Absorption, and Translocation of Folliar Applied Chlorimuron Ethyl (DPX-F6025) in Yellow and Purple Nutsedge. |
Source: | Proceedings of the North Central Weed Control Conference. Vol. 41, December 1986, p. 96. |
Publishing Information: | Omaha, NB: North Central Weed Control Conference |
Keywords: | TIC Keywords: Cyperus esculentus; Cyperus rotundus; Chlorimuron
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Abstract/Contents: | "Studies were conducted in greenhouse and growth chamber to investigate the activity of chlorimuron ehtyl in yellow and purple nutsedge. A single foliar application of chlorimuron ethyl caused abrupt cessation of growth, inhibited secondary shoot production, and killed parent tubers in both species. Application of 20 g/ha gave 84% control in yellow nutsedge and 100% in purple nutsedge. A 1 cm2 area in the middle of the 4th fully expanded leaf was treated with 15 ul of solution containing 0.18 uCi of 14C-chlorimuron ethyl and 0.2% (v/v) of X-77. The plants were harvested at 1, 2, 4 and 8 days after application (DAA). the treated area was washed with 10% methanol to remove unabsorbed 14C. Each plant was fractioned, lyophilized, combusted and radioactivity quantified using liquid scintillation spectrometry. Over 13% of the 14C recovered was absorbed and over 15% of the absorbed was translocated at 1 DAA in both species. This increased two-fold by 8DAA. Translocation was both acropetal and basipetal. The radioactivity was widely distributed in the plant. In both species, distribution of radioactivity (%) in the treated area and above the treated area differed from each and both were significantly greater than other fractions. The basal bulbs and rhizomes had the least accumulation." |
Language: | English |
References: | 0 |
Note: | This item is an abstract only! |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Reddy, K. N., and L. E. Bendixen. 1986. Toxicity, Absorption, and Translocation of Folliar Applied Chlorimuron Ethyl (DPX-F6025) in Yellow and Purple Nutsedge.. Proc. North Cent. Weed Sci. Soc. 41:p. 96. |
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