Hostname: page-component-586b7cd67f-rcrh6 Total loading time: 0 Render date: 2024-11-22T18:14:42.183Z Has data issue: false hasContentIssue false
  • English
  • Français

Sweet Corn (Zea mays) Cultivar Sensitivity to RPA 201772

Published online by Cambridge University Press:  20 January 2017

John O'Sullivan ,
Robert J. Thomas  and
Peter Sikkema
John O'Sullivan
Affiliation:
Dept. of Plant Agriculture, University of Guelph, Simcoe, ON, Canada N3Y 4N5
Robert J. Thomas
Affiliation:
Dept. of Plant Agriculture, University of Guelph, Simcoe, ON, Canada N3Y 4N5
Peter Sikkema
Affiliation:
Ridgetown College, University of Guelph, Ridgetown, ON, Canada N0P 2C0
Get access Rights & Permissions [Opens in a new window]

Abstract

Field studies were conducted in 1998 and 1999 at Simcoe and Exeter, ON, to evaluate the tolerance of nine sweet corn cultivars, representing a range of genotypes, to RPA 201772 applied preemergence at 105 and 210 g ai/ha. The location × year interaction was significant for visible plant injury, plant height, and yield. All cultivars showed significant injury at Simcoe in 1999, especially at 210 g/ha. Calico Belle was the most sensitive cultivar, with RPA 201772 resulting in severe injury at Simcoe in 1999. Increased injury in 1999 was due to significant rainfall (48.5 mm) within 10 d of RPA 201772 application at Simcoe. Calico Belle also showed injury at Exeter in 1999 and at Simcoe in 1998. Plant height of all cultivars was reduced at the Simcoe location in 1999. Yield of five cultivars was also reduced at Simcoe in 1999. Sensitivity to RPA 201772 increased as application rate increased. Plant height and yield was not reduced at Exeter.

Keywords

RPA 201772 (proposed common name, isoxaflutole), 5-cyclopropyl-isoxazol-4-yl 2-mesyl-4-trifluoromethyl phenyl ketonesweet corn, Zea mays L.Plant heightcrop injurypreemergencebenzoly isoxazoleDAT, days after treatmentOM, organic matterPRE, preemergence
Type
Research
Information
Weed Technology , Volume 15 , Issue 2 , June 2001 , pp. 332 - 336
Copyright
Copyright © Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

Bhowmik, P. C., Kushwaha, S., and Mitra, S. 1999. Response of various weed species and corn (Zea mays) to RPA 201772. Weed Technol. 13: 504–509.CrossRefGoogle Scholar
Harvey, R. G., Albright, J. W., Anthon, T. M., and Kutil, J. L. 1995. Wild proso millet control with EXP 31130A in a field corn study. North Cent. Weed Sci. Soc., Res. Rep. 51: 118–119.Google Scholar
Knezevic, S. Z., Sikkema, P. H., Tardif, F., Hamill, A. S., Chandler, K., and Swanton, C. J. 1998. Biologically effective dose and selectivity of RPA 201772 for preemergence weed control in corn (Zea mays). Weed Technol. 12: 670–676.Google Scholar
Luscombe, B. M. and Pallett, K. E. 1996. Isoxaflutole for weed control in maize. Pestic. Outlook. 29–32.Google Scholar
Luscombe, B. M., Pallett, K. E., Loubiere, P., Millet, J. C., Melgarejo, J., and Vrabel, T. E. 1995. RPA 201772: A novel herbicide for broadleaf and grass weed control in maize and sugar cane. Proc. Brighton Crop Prot. Conf. Weeds. 2: 35–42.Google Scholar
Morton, C. A. and Harvey, R. G. 1992. Sweet corn (Zea mays) hybrid tolerance to nicosulfuron. Weed Technol. 6: 91–96.CrossRefGoogle Scholar
O'Sullivan, J. and Bouw, W. J. 1998. Sensitivity of processing sweet corn (Zea mays) cultivars to nicosulfuron/rimsulfuron. Can. J. Plant Sci. 71: 151–154.Google Scholar
Pallett, K. E., Little, J. P., Sheekey, M., and Veerasekaran, P. 1998. The mode of action of RPA 201772. I. Physiological effects, metabolism and selectivity. Pestic. Biochem. Physiol. 62: 113–124.Google Scholar
Rowe, L. and Penner, D. 1990. Factors affecting chloracetamide injury to corn. Weed Technol. 4: 904–906.CrossRefGoogle Scholar
Sprague, C. L., Kells, J. J., and Penner, D. 1999. Weed control and corn (Zea mays) tolerance from soil applied RPA 201772. Weed Technol. 13: 713–725.Google Scholar
Stemeroff, J., Swanton, C. J., Hamill, A. S., and Brown, R. H. 1988. Economics of herbicide use in corn (Zea mays) and soybeans (Glycine max) in Ontario. Weed Technol. 2: 466–472.CrossRefGoogle Scholar
Van Wychen, L. R., Harvey, R. G., Rabaey, T. L., and Bach, D. J. 1999. Tolerance of sweet corn (Zea mays) hybrids to RPA 201772. Weed Technol. 13: 221–226.CrossRefGoogle Scholar
Vrabel, T. E., Jensen, J. O., Wrucke, M. A., and Hicks, C. 1995. EXP 31130A: A new preemergent herbicide for corn. Proc. North Cent. Weed Sci. Soc. 50: 24–25.Google Scholar
Young, B. G., Hart, S. E., and Simmons, F. W. 1999. Weed control in conventional-till corn (Zea mays) with RPA 201772. Weed Technol. 13: 471–477.CrossRefGoogle Scholar