Hostname: page-component-cd9895bd7-p9bg8 Total loading time: 0 Render date: 2024-12-29T13:21:21.840Z Has data issue: false hasContentIssue false
  • English
  • Français

Sulfentrazone absorption by plant roots increases as soil or solution pH decreases

Published online by Cambridge University Press:  20 January 2017

Jason A. Ferrell ,
William W. Witt  and
William K. Vencill
Jason A. Ferrell
Affiliation:
Department of Crop and Soil Sciences, University of Georgia, Athens, GA 30602
William W. Witt
Affiliation:
Department of Agronomy, University of Kentucky, Lexington, KY 40546
Get access Rights & Permissions [Opens in a new window]

Abstract

Sulfentrazone is a herbicide that has been observed to injure crops in an unpredictable manner. Therefore, experiments were conducted to determine whether root absorption of sulfentrazone was dependent on the pH of the rooting medium. Studies were initiated to examine sulfentrazone uptake of whole plants from soil and hydroponic solution, as well of excised roots in solution. These experiments demonstrated that transpiration decreased as soil pH decreased and herbicide rate increased; it was our intention to use this measure as a description of herbicide injury. Likewise, plants grown for 24 h in 14C-sulfentrazone hydroponic solution accumulated a greater herbicide concentration in roots as solution pH decreased below 6.5. This trend of increased absorption with reduced solution pH was again demonstrated when excised cotton roots were placed for durations of 10 to 120 min in hydroponic solution containing 14C-sulfentrazone. However, when excised roots were placed in solution containing the weak acid herbicide glyphosate, no trend of increased absorption was observed with changes in solution pH. Therefore, it was concluded that the accompanying change in solubility, as sulfentrazone was converted from the ionic to the neutral form, was responsible for the increased absorption by plant roots. Localized differences in soil pH could be responsible for greater sulfentrazone uptake and explain the unpredictable patterns of injury that have been observed.

Keywords

Glyphosatesulfentrazonecotton, Gossypium hirsutum L. ‘Fibermaxx 989 RR/BG’tobacco, Nicotiana tobacum ‘TN 90’, ‘KY 14’Excised rootsherbicide uptakeweak acid herbicides
Type
Soil, Air, and Water
Information
Weed Science , Volume 51 , Issue 5 , October 2003 , pp. 826 - 830
Copyright
Copyright © 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

Briggs, G. G., Bromilow, R. H., and Evans, A. A. 1982. Relationships between lipophilicity and root uptake and translocation of non-ionised chemicals by barley. Pestic. Sci 13:495–504.CrossRefGoogle Scholar
Briggs, G. G., Rigitano, R. L. O., and Bromilow, R. H. 1987. Physio-chemical factors affecting uptake by roots and translocation to shoots of weak acids in barley. Pestic. Sci 19:101–112.CrossRefGoogle Scholar
Dayan, F. E., Weete, J. D., Duke, S. O., and Hancock, H. G. 1997. Soybean (Glycine max) cultivar differences in response to sulfentrazone. Weed Sci 45:634–641.Google Scholar
Dayan, F. E., Weete, J. D., and Hancock, H. G. 1996. Physiological basis for differential sensitivity to sulfentrazone by sicklepod (Senna obtusifolia) and coffee senna (Cassia occidentalis). Weed Sci 44:12–17.CrossRefGoogle Scholar
Devine, M. D., Bestman, H. D., and Vander Born, W. H. 1987. Uptake and accumulation of the herbicides chlorosulfuron and clopyralid in excised pea root tissue. Plant Physiol 85:82–86.CrossRefGoogle Scholar
Grey, T. L., Walker, R. H., Wehtje, G. R., and Hancock, H. G. 1997. Sulfentrazone absorption and mobility as affected by soil and pH. Weed Sci 45:733–738.Google Scholar
Hatzios, K. K. 1998. Herbicide Handbook—Supplement to the Seventh Edition. Lawrence, KS: Weed Science Society of America. Pp. 66–67.Google Scholar
Hsu, F. C., Marxmiller, R. L., and Yang, A. Y. S. 1990. Study of root uptake and xylem translocation of cinmethylin and related compounds in detopped soybean roots using a pressure chamber technique. Plant Physiol 93:1573–1578.CrossRefGoogle ScholarPubMed
Merise, W. and Singh, M. 1987. Norflurazon absorption by excised velvetleaf (Abutilon theophrasti) roots. Weed Sci 35:303–307.CrossRefGoogle Scholar
Nandihalli, U. B. and Bhowmik, P. C. 1989. Chlorimuron absorption by excised velvetleaf roots. Weed Sci 37:29–33.CrossRefGoogle Scholar
Nandihalli, U. B. and Bhowmik, P. C. 1991. Uptake and efflux of chlorimuron by excised soybean (Glycine max (L.) Merr.) root tissue. Weed Res 31:295–300.CrossRefGoogle Scholar
Orwick, P. L., Schreiber, M. M., and Hodges, T. K. 1976. Absorption and efflux of chloro-s-triazines by Setaria roots. Weed Res 16:139–144.CrossRefGoogle Scholar
Peterson, C. A. 1988. Exodermal casparian strip bands: their significance for ion uptake by roots. Physiol. Plant 72:204–208.CrossRefGoogle Scholar
Price, T. P. and Balke, N. E. 1982. Characterization of rapid atrazine absorption by excised velvetleaf roots. Weed Sci 30:633–639.CrossRefGoogle Scholar
Price, T. P. and Balke, N. E. 1983. Characterization of atrazine accumulation by excised velvetleaf roots. Weed Sci 31:14–19.CrossRefGoogle Scholar
Reddy, K. N. and Locke, M. A. 1998. Sufentrazone sorption, desorption, and mineralization in soils from two tillage systems. Weed Sci 46:494–500.CrossRefGoogle Scholar
Salisbury, F. B. and Ross, C. W. 1992. Plant Physiology. Belmont, CA: Wadsworth. 146 p.Google Scholar
Sicbaldi, F., Sacchi, G. A., Trevisan, M., and Del Re, A. A. M. 1997. Root uptake and xylem translocation of pesticides from different chemical classes. Pestic. Sci 50:111–119.3.0.CO;2-3>CrossRefGoogle Scholar
Van Ellis, M. R. and Shaner, D. L. 1988. Mechanism of cellular absorption of imidazolinones in soybean leaf discs. Pestic. Sci 23:25–34.CrossRefGoogle Scholar
Vencill, W. K. 2002. Herbicide Handbook. 8th ed. Lawrence, KS: Weed Science Society of America Pp. 111–406.Google Scholar
Witt, W. W., Evetts, L., Davidson, J. M., and Santlemann, P. W. 1970. Influence of herbicide application method on bioassay sensitivity. Proc. South. Weed Sci. Soc 23:338–342.Google Scholar