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| Publication Type:
| Refereed |
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| Author(s): | Vaughn, K. C.;
Vaughn, M. A.;
Gossett, B. J. |
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| Author Affiliation: | U.S.D.A. Research Service and Clemson University, respectively |
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| Title: | A Biotype of Goosegrass (Eleusine indica) with an Intermediate Level of Dinitroaniline Herbicide Resistance |
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| Source: | Weed Technology. Vol. 4, No. 1, January-March 1990, p. 157-162. |
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| Publishing Information: | Champaign, IL: Weed Science Society of America. |
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| Keywords: | TIC Keywords: Eleusine indica; Herbicide resistance; Dinitroaniline herbicides; Biotypes
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| Geographic Terms: | South Carolina |
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| Abstract/Contents: | "Two kinds of dinitroaniline-resistant biotypes of goosegrass have been found in counties in South Carolina where trifluralin is used for weed control. One biotype, termed the resistant (R) biotype, resists trifluralin about 1000- to 10 000 fold. The other biotype is intermediate (I) in resistance between the R and susceptible (S) biotypes, resisting trifluralin about 50-fold. Growth studies and root tip squashes were used to determine the level of resistance to other dinitroaniline herbicides. The R biotype is cross resistant to others only at a low level. The cross resistance of the I biotype to other dinitroaniline herbicides does not correlate with structural or solubility characteristics of the herbicides. Electron microscopic investigations indicate that cell plate formation (controlled by phragmoplast microtubule arrays) is affected at lower herbicide concentrations than spindle microtubule formations. The level of herbicide resistance, the pattern of cross resistance, and the ultrastructural effects induced by the herbicide indicate that the I biotype has a unique mechanism of resistance from the R biotype." |
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| Language: | English |
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| References: | 14 |
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| Note: | Pictures, b/w
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Vaughn, K. C., M. A. Vaughn, and B. J. Gossett. 1990. A Biotype of Goosegrass (Eleusine indica) with an Intermediate Level of Dinitroaniline Herbicide Resistance. Weed Technol. 4(1):p. 157-162. |
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MSU catalog number: SB 610 .W44 |
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