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Differential Imazaquin Tolerance and Behavior in Selected Corn (Zea mays) Hybrids

Published online by Cambridge University Press:  12 June 2017

Kip W. Sander  and
Michael Barrett
Kip W. Sander
Affiliation:
Dep. Agron., Univ. Kentucky, Lexington, KY 40546
Michael Barrett
Affiliation:
Dep. Agron., Univ. Kentucky, Lexington, KY 40546
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Abstract

‘Cargill 921′, ‘Great Lakes 422′, ‘Northrup King 9410′, ‘Pioneer 3901′, ‘Pioneer 3737′, and ‘Stauffer 5650’ corn hybrids were tested in the greenhouse for imazaquin tolerance. Imazaquin rates that reduced shoot growth 50%, when compared to the untreated hybrid check, ranged from 17 to 50 g/ha. When averaged together, the three most tolerant hybrids (Cargill 921, Pioneer 3901, and Great Lakes 422) were approximately one-half as sensitive to imazaquin as the three least tolerant hybrids (Northrup King 9410, Pioneer 3737, and Stauffer 5650). Studies were conducted to determine if the observed differential tolerance was caused by differences in acetolactate synthase (ALS, EC 4.1.3.18) levels and sensitivity of ALS to imazaquin. Differential imazaquin uptake, translocation, and/or metabolism were also studied as a basis for the tolerance range as was seed size and seedling growth. There were differences among hybrids in the physiological and growth parameters studied; however, these differences did not correlate with imazaquin tolerance. None of the factors studied could alone account for the differences in imazaquin tolerance.

Keywords

Corn, Zea mays L.imazaquin, 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-3-quinolinecarboxylic acidMetabolismimidazolinoneacetolactate synthaseacetohydroxyacid synthaseuptaketranslocation
Type
Physiology, Chemistry, and Biochemistry
Information
Weed Science , Volume 37 , Issue 3 , May 1989 , pp. 290 - 295
Copyright
Copyright © 1989 by the Weed Science Society of America 

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References

Literature Cited

1. Anderson, P. C. and Georgson, M. 1986. Selection of an imidazolinone tolerant mutant of corn. Page 437 in Somers, D. A., Gengenbach, B. G., Biesboer, D. D., Hackett, W. P., and Green, C. E., eds. VI International Congress of Plant Tissue and Cell Culture Abstracts. Univ. Minnesota, Minneapolis, MN.Google Scholar
2. Anderson, P. C. and Hibberd, K. A. 1985. Evidence for the interaction of an imidazolinone herbicide with leucine, valine, and isoleucine metabolism. Weed Sci. 33:479–483.CrossRefGoogle Scholar
3. Barrett, M. 1989. Reduction of imazaquin injury to corn (Zea mays) and sorghum (Sorghum bicolor) with antidotes. Weed Sci. 37:34–41.Google Scholar
4. Jaworski, E. G. 1987. Impacts of biotechnology on agricultural pesticides. Pages 585–589 in Greenhalgh, R. and Roberts, T. R., eds. Pesticide Science and Biotechnology. 6th IUPAC Congress of Pesticide Chemistry. Blackwell Sci. Publ., Inc., Palo Alto, CA.Google Scholar
5. Lowry, O. H., Rosebrough, N. J., Farr, A. L., and Randall, R. J. 1951. Protein measurement with the Folin phenol reagent. J. Biol. Chem. 193:265–275.CrossRefGoogle ScholarPubMed
6. Martin, P. K., Hackworth, H. M., Watkins, R. Jr., Matthews, R., Shurtleff, J., Dunn, J., Huffman, F., Goddard, G., and Walls, F. R. 1983. AC 252,214 — A new broad spectrum herbicide for soybeans: Soil applications. Proc. South. Weed Sci. Soc. 36:90.Google Scholar
7. Maynard, D. N. and Barker, A. V. 1970. Nutriculture: A guide to the soilless culture of plants. Coop. Ext. Serv. Univ. Massachusetts, Amherst. Publication 41.Google Scholar
8. Mills, J. A., Witt, W. W., and Olson, G. L. 1987. Effects of tillage systems on imazaquin and AC 263,499 persistence. Proc. South. Weed Sci. Soc. 40:378.Google Scholar
9. Ray, T. B. 1984. Site of action of chlorsulfuron: Inhibition of valine and isoleucine biosynthesis in plants. Plant Physiol. 75:827–831.Google Scholar
10. Renner, K. A., Meggitt, W. F., and Leavitt, R. A. 1988. Influence of rate, method of application, and tillage on imazaquin persistence in soil. Weed Sci. 36:90–95.Google Scholar
11. Renner, K. A., Meggitt, W. F., and Penner, D. 1988. Response of corn (Zea mays) cultivars to imazaquin. Weed Sci. 36:625–628.Google Scholar
12. Shaner, D. L. and Reider, M. L. 1986. Physiological responses of corn (Zea mays) to AC 243,997 in combination with valine, leucine, and isoleucine. Pestic. Biochem. Physiol. 25:248–257.CrossRefGoogle Scholar
13. Shaner, D. L. and Robson, P. A. 1985. Absorption, translocation, and metabolism of AC 252,214 in soybean (Glycine max), common cocklebur (Xanthium strumarium), and velvetleaf (Abutilon theophrasti). Weed Sci. 33:469–471.Google Scholar
14. Shaner, D. L., Anderson, P. C., and Stidham, M. A. 1984. Imidazolinones: Potent inhibitors of acetohydroxyacid synthase. Plant Physiol. 76:545–546.Google Scholar