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Use of Activated Carbon to Reduce Phytotoxicity of Imazaquin to Tobacco (Nicotiana tabacum)

Published online by Cambridge University Press:  12 June 2017

Fred H. Yelverton ,
A. Douglas Worsham  and
Gerald F. Peedin
Fred H. Yelverton
Affiliation:
Dep. Crop Sci., N. C. State Univ., Raleigh, NC 27695-7620
A. Douglas Worsham
Affiliation:
Dep. Crop Sci., N. C. State Univ., Raleigh, NC 27695-7620
Gerald F. Peedin
Affiliation:
Dep. Crop Sci., N. C. State Univ., Raleigh, NC 27695-7620
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Abstract

In 1987-89, field experiments were conducted to evaluate rates of activated carbon in transplant water to reduce injury to tobacco from imazaquin. Rates of activated carbon were 0, 2.2, 4.5, and 9 kg ha−1 in 1987 and 0, 9, 18, and 36 kg ha−1 in 1988-89. Imazaquin rates were 0, 0.3, and 0.6 kg ha−1 applied over-the-top immediately after transplanting. Results indicated that 9 kg ha−1 of activated carbon was the minimum amount to reduce injury from imazaquin. No additional protection was achieved with rates above 9 kg ha−1, whereas lower rates appeared to offer less protection based on visible stunting ratings.

Keywords

Imazaquin, 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-3-quinolinecarboxylic acidtobacco, Nicotiana tabacum L.Activated charcoalherbicide injuryherbicide safenerherbicide antidote
Type
Research
Information
Weed Technology , Volume 7 , Issue 3 , September 1993 , pp. 663 - 669
Copyright
Copyright © 1993 by the Weed Science Society of America 

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