Hostname: page-component-cd9895bd7-8ctnn Total loading time: 0 Render date: 2024-12-26T05:55:23.705Z Has data issue: false hasContentIssue false
  • English
  • Français

Metabolism 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, NC 27607
F.T. Corbin
Affiliation:
Dep. Crop Sci., North Carolina State Univ., Raleigh, NC 27607
A.D. Worsham
Affiliation:
Dep. Crop Sci., North Carolina State Univ., Raleigh, NC 27607
Get access Rights & Permissions [Opens in a new window]

Abstract

The metabolism of Sandoz 6706 [4-chloro-5-(dimethylamino)-2-α,α,α-trifluoro-m-tolyl-3(2H)-pyridazinone] in soybean [Glycine max (L.) Merr. ‘Kent’] and in sicklepod (Cassia obtusifolia L.) was examined at 1, 2, 4, and 8 days after herbicide application to explain the relative susceptibility of soybean and sicklepod to the herbicide. The 14C-labeled Sandoz 6706 was applied via the plant roots in a liquid culture medium. The primary pathway of metabolism in both plant species involved N-demethylation to norflurazon [4-chloro-5-(methylamino)-2-(α,α,α-trifluoro-m-tolyl)-3(2H)-pyridazinone and the desmethyl Sandoz 9774 [5-amino-4-chloro-2-(α,α,α-trifluoro-m-tolyl-3(2H)-pyridazinone]. Soybean was more efficient in the N-demethylation of the herbicide to less toxic metabolites than was sicklepod. A second transformation pathway which resulted in the formation of polar products was present in the roots of both species.

Type
Research Article
Information
Weed Science , Volume 25 , Issue 1 , January 1977 , pp. 9 - 12
Copyright
Copyright © 1977 by the Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. Chin, W.T., Stanovick, R.P., Cullen, T.E., and Hosing, G.C. 1964. Metabolism of swep by rice. Weeds 12:201–205.CrossRefGoogle Scholar
2. Frear, D.S. and Swanson, H.R. 1972. New metabolites of monuron in excised cotton leaves. Phytochem. 11:1919–1929.CrossRefGoogle Scholar
3. Hilton, J.L., Scharen, A.L., St. John, J.B., Moreland, D.E., and Norris, K.H. 1969. Modes of action of pyridazinone herbicides. Weed Sci. 17:541–547.CrossRefGoogle Scholar
4. Hoagland, D.R. and Arnon, D.I. 1950. The water culture method for growing plants without soil. California Agric. Exp. Stn. Circ. 347:1–32.Google Scholar
5. Motooka, P.S., Corbin, F.T., and Worsham, A.D. 1976. Uptake and translocation of Sandoz 6706 in soybean and sicklepod. Weed Sci. (In Press).CrossRefGoogle Scholar
6. Rogers, R.L. and Funderburk, H.H. Jr. 1968. Physiological aspects of flumeturon in cotton and cucumber. J. Agric. Food Chem. 16:434–440.CrossRefGoogle Scholar
7. Steiner, A.S. and van Winden, H. 1970. Recipe for ferric salts of ethylenediaminetetraacetic acid. Plant Physiol. 46:862–863.CrossRefGoogle ScholarPubMed
8. Stephenson, G.R. and Ries, S.K. 1969. Metabolism of pyrazon in sugarbeets and soil. Weed Sci. 17:327–331.CrossRefGoogle Scholar
9. Strang, R.H. and Rogers, R.L. 1972. The absorption, translocation, and metabolism of San-6706 by cotton, corn and soybeans. Proc. South. Weed Sci. Soc. 25:424.Google Scholar
10. Weber, J.B. 1972. Model soil systems, herbicide leaching, and sorption. Pages 146–160 in Wilkinson, Robert E., ed. Research methods in weed science. 25th Anniversary Commemorative Issue. South. Weed Sci. Soc. Google Scholar