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Absorption and translocation of triclopyr ester in Populus tremuloides

Published online by Cambridge University Press:  20 January 2017

Jian Zhong Huang ,
Robert A. Campbell ,
John A. Studens  and
Richard A. Fleming
Jian Zhong Huang
Affiliation:
Great Lakes Forestry Centre, Sault Ste. Marie, Ontario, Canada P6A 5M7
John A. Studens
Affiliation:
Great Lakes Forestry Centre, Sault Ste. Marie, Ontario, Canada P6A 5M7
Richard A. Fleming
Affiliation:
Great Lakes Forestry Centre, Sault Ste. Marie, Ontario, Canada P6A 5M7
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Abstract

The effect of three spray variables (droplet number, active ingredient concentration, and droplet size) on uptake and translocation of formulated 14C-triclopyr ester was studied in greenhouse-grown Populus tremuloides seedlings. The dose per plant in all treatments was held constant. In all experiments, absorption (as a percentage of dose applied) was much greater than translocation (as percentage of dose absorbed). Absorption and translocation decreased as concentration (ai) was increased and droplet number decreased. Absorption and translocation also decreased as droplet number decreased and droplet size increased. When concentration (ai) was increased and droplet size decreased, absorption again decreased but to a much lesser extent than in the other two experiments; there was no significant effect on translocation. A time-course experiment indicated that uptake rate began to decrease within 1.5 h of application. The rate of decrease was greater at the higher concentration (ai), suggesting that the decrease was associated with contact injury. A model to integrate the application parameters and translocation gave a high correlation between dose per unit droplet stain circumference and translocation.

Keywords

TriclopyrPopulus tremuloides Michx. POPTMtrembling aspenSpray volumespray coveragedroplet sizedroplet numberPOPTM
Type
Research Article
Information
Weed Science , Volume 48 , Issue 6 , December 2000 , pp. 680 - 687
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Behrens, R. 1957. Influence of various components on the effectiveness of 2,4,5-T sprays. Weeds 5:183–196.Google Scholar
Buhler, D. D. and Burnside, O. C. 1987. Effects of application variables on glyphosate phytotoxicity. Weed Technol. 1:14–17.CrossRefGoogle Scholar
Cranmer, J. R. and Linscott, D. L. 1991. Effects of droplet composition on glyphosate absorption and translocation in velvetleaf (Abutilon theophrasti). Weed Sci. 39:251–254.Google Scholar
Draper, N. R. and Smith, H. 1981. Applied regression analysis. 2nd ed. New York: Wiley, pp. 241–257.Google Scholar
Fisher, C. E. and Young, D. W. 1950. The effect of herbicide droplet size on the control of mesquite when applied by airplane equipment. Proc. North Cent. Weed Contr. Conf. 7:84–86.Google Scholar
Hoagland, D. R. and Arnon, D. I. 1950. The water-culture method for growing plants without soil. Calif. Agric. Exp. Stn. Circ. 347:29–31.Google Scholar
Knoche, M. 1994. Effect of droplet size and carrier volume on performance of foliage-applied herbicides. Crop Protect. 13:163–178.Google Scholar
Liu, S. H. and Campbell, R. A. 1996. Efficacy of glyphosate on Populus tremuloides as affected by droplet size and spray volume. N. Z. J. For. Sci. 26:276–287.Google Scholar
Liu, S. H., Campbell, R. A., Studens, J. A., and Wagner, R. G. 1996. Absorption and translocation of glyphosate in aspen (Populus tremuloides Michx.) as influenced by droplet size, droplet number, and herbicide concentration. Weed Sci. 44:482–488.Google Scholar
McKinlay, K. S., Brandt, S. A., Morse, P., and Ashford, R. 1972. Droplet size and phytotoxicity of herbicides. Weed Sci. 20:450–452.CrossRefGoogle Scholar
Merritt, C. R. 1982. The influence of form of deposit on the phytotoxicity of MCPA, paraquat and glyphosate applied as individual drops. Ann. Appl. Biol. 101:527–532.Google Scholar
Prasad, R. 1988. Herbicidal activity of glyphosate as effected by adjuvants and droplet size. Pages 181–186 In Proc. European Weed Res. Soc. Symp. Factors Affecting Herbicidal Activity and Selectivity.Google Scholar
Prasad, R. and Cadogan, B. L. 1992. Influence of droplet size and density on phytotoxicity of three herbicides. Weed Technol. 6:415–423.Google Scholar
Sandberg, C. L., Meggitt, W. F., and Penner, D. 1978. Effect of diluent volume and calcium on glyphosate phytotoxicity. Weed Sci. 26:476–479.Google Scholar
Schonherr, J. and Riederer, M. 1989. Foliar penetration and accumulation of organic chemicals in plant cuticles. Rev. Environ. Contam. Toxicol. 108:1–70.Google Scholar
SigmaPlot. 1999. SigmaPlot for Windows, Version 5.05. Chicago, IL: SPSS.Google Scholar
SigmaStat. 1998. SigmaStat for Windows, Version 2.03. Chicago, IL: SPSS.Google Scholar
Smith, H. H. 1946. Quantitative aspects of aqueous-spray applications of 2,4-dichlorophenoxyacetic acid for herbicidal purposes. Bot. Gaz. 107:544–551.CrossRefGoogle Scholar
Wolf, T. M., Caldwell, B. C., McIntyre, G. I., and Hsiao, A. I. 1992. Effect of droplet size and herbicide concentration on absorption and translocation of 14C-2,4-D in oriental mustard (Sisymbrium orientale). Weed Sci. 40:568–575.Google Scholar