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Uptake and Translocation of Sandoz 6706 in Soybean and Sicklepod

Published online by Cambridge University Press:  12 June 2017

P.S. Motooka ,
F.T. Corbin  and
A.D. Worsham
P.S. Motooka
Affiliation:
Dep. Crop Sci., North Carolina State Univ., Raleigh, N.C. 27607
F.T. Corbin
Affiliation:
Dep. Crop Sci., North Carolina State Univ., Raleigh, N.C. 27607
A.D. Worsham
Affiliation:
Dep. Crop Sci., North Carolina State Univ., Raleigh, N.C. 27607
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Abstract

The 14C-labeled herbicide, Sandoz 6706 [4-chloro-5-(dimethyl-amino)-2-α,α,α-trifluoro-m-tolyl-3(2H)-pyridazinone], was applied to soybean [Glycine max (L.) Merr. ‘Kent’] and sicklepod (Cassia obtusifolia L.) to evaluate differential species response in uptake and translocation. Liquid scintillation spectrometry and radioautographs indicated that in both species 6706 uptake was proportional to its concentration in the cultural solution and to transpiration, provided transpiration and the uptake mechanism were not limited. Translocation of the herbicide from roots to foliage followed the apoplastic route in both plants. A higher concentration of the herbicide accumulated in the upper leaves and apical meristem in sicklpod than in soybean.

Type
Research Article
Information
Weed Science , Volume 25 , Issue 1 , January 1977 , pp. 30 - 35
Copyright
Copyright © 1977 by the Weed Science Society of America 

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