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Influence of Selected Herbicides on Ozone Injury in Tobacco (Nicotiana tabacum)

Published online by Cambridge University Press:  12 June 2017

J. J. Reilly
Affiliation:
Southern Piedmont Res. and Continuing Ed. Center, Blackstone, VA 23824 and Dep. Plant Pathol. and Physiol, Blacksburg, VA 24061
L. D. Moore
Affiliation:
Southern Piedmont Res. and Continuing Ed. Center, Blackstone, VA 23824 and Dep. Plant Pathol. and Physiol, Blacksburg, VA 24061

Abstract

Field experiments were conducted over a 4-yr period to determine the influence of selected herbicides on ozone injury in tobacco (Nicotiana tabacum L.). Isopropalin (2,6-dinitro-N,N-dipropylcumidine), pebulate (S-propyl butylethylthiocarbamate), and diphenamid (N,N-dimethyl-2,2-diphenylacetamide) were applied at the recommended rates of 1.7, 4.5, and 4.5 kg/ha, respectively. Treatment of tobacco plants with isopropalin or diphenamid reduced oxidant injury for the first 2 to 4 weeks after transplanting, but not later in the season. Pebulate had no consistent affect on the sensitivity of tobacco to ozone.

Type
Research Article
Copyright
Copyright © 1982 by the Weed Science Society of America 

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