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Biologically Effective Dose and Selectivity of SAN 1269H (BAS 662H) for Weed Control in Corn (Zea mays)

Published online by Cambridge University Press:  12 June 2017

Peter H. Sikkema
Affiliation:
Ridgetown College, University of Guelph, Ridgetown, ON, Canada NOP 2C0
Stevan Z. Knezevic
Affiliation:
Crop Science Division, Department of Plant Agriculture, University of Guelph, ON, Canada N1G 2W1
Allan S. Hamill
Affiliation:
Agriculture and Agri-Food Canada, Harrow, ON, Canada N0R 1G0
François J. Tardif
Affiliation:
Crop Science Division, Department of Plant Agriculture, University of Guelph, ON, Canada N1G 2W1
Kevin Chandler
Affiliation:
Crop Science Division, Department of Plant Agriculture, University of Guelph, ON, Canada N1G 2W1
Clarence J. Swanton*
Affiliation:
Crop Science Division, Department of Plant Agriculture, University of Guelph, ON, Canada N1G 2W1
*
Corresponding author's E-mail: cswanton@plant.uoguelph.ca.

Abstract

Field experiments were conducted in 1996 and 1997 at five locations in southwestern Ontario to develop dose-response curves for SAN 1269H (SAN 835H plus dicamba) for weed control and crop tolerance in corn. SAN 1269H controlled wild buckwheat (Polygonum convolvulus L.), common ragweed (Ambrosia artemisiifolia L.), common lambsquarters (Chenopodium album L.), pigweeds (Amaranthus retroflexus L. and A. powellii S. Wats.), barnyardgrass [Echinochloa crus-galli (L.) Beauv.], and yellow foxtail [Setaria glauca (L.) Beauv.]. Biologically effective doses of SAN 1269H (BAS 662H) were 440, 430, 180, and 40 g/ha for yellow foxtail, barnyard grass, wild buckwheat, and common ragweed, respectively. The biologically effective dose (that which provides 90% reduction in weed dry matter) for common lambsquarters was 560 g/ha when SAN 1269H was applied preemergence (PRE) and 110 g/ha when applied postemergence (POST). When applied PRE at a rate of 420 g/ha, pigweed was controlled, whereas only 85 g/ha was required when applied POST. Grain yield increased with dose of SAN 1269H and did not differ with time of application. Temporary crop injury was observed when SAN 1269H was applied at the four- to six-leaf growth stage. Optimum corn yields were achieved with doses of 100 to 250 g/ha.

Type
Research
Copyright
Copyright © 1999 by the Weed Science Society of America 

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References

Literature Cited

Anderson, R.J., Leippe, M. L., Bowe, S., King, D. L., Lamoreaux, R. J., and Hess, F. D. 1997. SAN 835H: a new corn herbicide representing a novel chemical class. Weed Sci. Soc. Am. Abstr. 37:15.Google Scholar
Anonymous. 1996. Field Crop Recommendations. Toronto: Ontario Ministry of Agriculture, Food and Rural Affairs publication 296. 91 p.Google Scholar
Anonymous. 1998. Guide to Weed Control. Toronto: Ontario Ministry of Agriculture, Food and Rural Affairs publication 75. 300 p.Google Scholar
Bosnic, C. A. and Swanton, C. J. 1997. Economic decision rules for postemergence herbicide control of barnyardgrass (Echinochloa crus-galli) in corn (Zea mays). Weed Sci. 45:557563.Google Scholar
Bowe, S., Westberg, D., and Schmitz, G. 1997. SAN 1269 H: performance profile in field corn. Weed Sci. Soc. Am. Abstr. 37:16.Google Scholar
Brown, D. M. and Bootsma, A. 1993. Crop Heat Units for Corn and Other Warm-season Crops in Ontario. Ministry of Agriculture and Food and University of Guelph fact sheets, order no. 93-119, AGDEX 111/31.Google Scholar
Cousens, R. 1985. An empirical model relating crop yield to weed and crop density and a statistical comparison with other models. J. Agric. Sci. 105:513521.Google Scholar
Dieleman, A., Hamill, A. S., Fox, G. C., and Swanton, C. J. 1996. Decision rules for postemergence control of pigweed (Amaranthus spp.) in soybean (Glycine max). Weed Sci. 44:126132.Google Scholar
FIG-P Software Corporation. 1992. The Scientific Figure Processor. Durham, NC: FIG-P Software Corporation.Google Scholar
Günther, P., Pestemer, W., Rahman, A., and Nordmeyer, H. 1993. A technique to study the leaching behaviour of sulfonylurea herbicides in different soils. Weed Res. 33:177185.Google Scholar
Knezevic, Z. S., Sikkema, P. H., Tardif, F. J., 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. 12:670676.CrossRefGoogle Scholar
[SAS] Statistical Analysis Systems. 1987. SAS/STAT User's guide. Version 6. 4th ed. Cary, NC: Statistical Analysis Systems Institute. 1290 p.Google Scholar
Seefeldt, S. S., Jensen, J. E., and Fuerst, E. P. 1995. Log-logistic analysis of herbicide dose–response relationships. Weed Technol. 19:218227.Google Scholar
Streibig, J. C., Rudemo, M., and Jensen, J. E. 1993. Dose–response curves and statistical models. In Streibig, J. C. and Kudsk, P., eds. Herbicide Bioassays. Boca Raton, FL: CRC Press. pp. 2955.Google Scholar
Swanton, C.J. and Murphy, S. D. 1996. Weed science beyond the weeds: the role of integrated weed management (IWM) in agroecosystem health. Weed Sci. 44:437445.Google Scholar
Swanton, C. J. and Weise, S. F. 1991. Integrated weed management: the rationale and approach. Weed Technol. 5:648656.CrossRefGoogle Scholar