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| Publication Type:
| Refereed |
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| Author(s): | Nandihalli, Ujjanagouda B.;
Bendixen, Leo E. |
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| Title: | Absorption, Translocation, and Toxicity of Foliar-Applied Imazaquin in Yellow and Purple Nutsedge (Cyperus esculentus and C. rotundus) |
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| Source: | Weed Science. Vol. 36, No. 3, May 1988, p. 313-317. |
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| Publishing Information: | Champaign, IL: Weed Science Society of America |
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| Keywords: | TIC Keywords: Absorption; Translocation; Toxicity; Imazaquin; Cyperus esculentus; Cyperus rotundus; Herbicides; Rhizomes; Tillers (vegetative)
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| Abstract/Contents: | "Imazaquin [2 - [4, 5 - dihydro - 4 - methyl - 4 (1 - methyl - ethyl) - 5 - oxo - 1H- imidazol - 2 - yl] - 3 - quinolinecarboxylic acid] absorption, translocation, and toxicity were investigated in yellow nutsedge (Cyperus esculentus L. # CYPES) and purple nutsedge (C. rotundus L. # CYPRO) after foliar treatment. Imazaquin rates from 0.125 to 0.375 kg ai/ha were sprayed on nutsedge plants at the four-leaf stage. Compared to untreated plants, these rates reduced main shoot growth of yellow nutsedge by 70 to 86% and that of purple nutsedge by 80 to 92% at 28 days after application (DAA). However, the regrowth as measured by tiller production was significantly greater at 0.125 and 0.188 kg/ha rates than at higher rates. The plants treated with 0.313 and 0.375 rates had no rhizomes or tubers at the 28 DAA sampling. In yellow nutsedge, absorption of C-imazaquin increased from 36% at 1 DAA to 57% at 8 DAA. Of the total absorbed D, 12% translocated from the treated area by 8 DAA. Roots and rhizomes accumulated equal amounts of radioactivity. In purple nutsedge, the absorption of imazaquin increased from 17% at 1 DAA to 53% at 8 DAA. Translocation of absorbed C in purple nutsedge at 8 DAA was 21%. Rhizomes accumulated significantly greater amounts of C than the roots." |
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| Language: | English |
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| References: | 23 |
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| See Also: | Other items relating to: Foliar Feeding & Uptake |
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| Note: | Figures
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Nandihalli, U. B., and L. E. Bendixen. 1988. Absorption, Translocation, and Toxicity of Foliar-Applied Imazaquin in Yellow and Purple Nutsedge (Cyperus esculentus and C. rotundus). Weed Sci. 36(3):p. 313-317. |
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