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Naptalam as a Safener Against Chloramben in Cucumber (Cucumis sativus)

Published online by Cambridge University Press:  12 June 2017

Larry D. Knerr  and
Herbert J. Hopen
Larry D. Knerr
Affiliation:
Dep. Hortic., Univ. Wis., Madison, WI 53706
Herbert J. Hopen
Affiliation:
Dep. Hortic., Univ. Wis., Madison, WI 53706
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Abstract

Naptalam at 6.7 kg ae/ha applied with chloramben at 2.0 to 4.5 kg ae/ha was a safener for chloramben phytotoxicity to cucumber as expressed by increased dry weight in the greenhouse and yield in the field, but the protection was inadequate to be commercially acceptable. Naptalam applied in seed coatings also protected cucumber from chloramben phytotoxicity in the greenhouse but were ineffective in the field. Delaying chloramben application 24 to 72 h after naptalam application in the field increased the safening effect to a level that may be commercially acceptable. The safening effect was only to cucumber as effective weed control was achieved with chloramben and naptalam.

Keywords

Chloramben, 3-amino-2,5-dichlorobenzoic acidnaptalam, 2-[(1-naphthalenylamino)carbonyl]benzoic acidcucumber, Cucumis sativus L. ‘Addis'
Type
Research
Information
Weed Technology , Volume 3 , Issue 3 , September 1989 , pp. 445 - 449
Copyright
Copyright © 1989 by the Weed Science Society of America 

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