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Effect of Growth Stage and Environment on Foliar Absorption, Translocation, Metabolism, and Activity of Nicosulfuron in Quackgrass (Elytrigia repens)

  • Joseph A. Bruce (a1), J. Boyd Carey (a1), Donald Penner (a1) and James J. Kells (a1)


Experiments were conducted to examine the influence of adjuvant, growth stage, air temperature, and soil moisture on nicosulfuron activity, absorption, and distribution in quackgrass. Foliar absorption of 14C-nicosulfuron by quackgrass was greater in one-leaf than five-leaf plants. Total translocation of 14C-nicosulfuron was similar regardless of growth stage. However, nicosulfuron was more phytotoxic to three- and five-leaf than one-leaf quackgrass. Of the absorbed 14C, at least 71 % remained as 14C-nicosulfuron 168 h after application in three-leaf plants. 14C-Nicosulfuron absorption, translocation, and accumulation increased with increasing temperatures and was independent of soil moisture. Under adequate soil moisture conditions (-0.03 MPa), nicosulfuron activity was not influenced by temperature. Nicosulfuron efficacy was not influenced by soil moisture at a cool (11/6 C) temperature. As plant moisture stress increased, due to low soil moisture and increasing air temperature, nicosulfuron efficacy declined. Differences in nicosulfuron efficacy due to growth stage or environmental conditions could not be explained by differential 14C recovery, absorption, translocation, or accumulation. The addition of 28% urea-ammonium nitrate liquid fertilizer (UAN) to 14C-nico-sulfuron plus petroleum oil adjuvant (POA) provided greater 14C absorption than POA alone. Translocation of 14C with POA alone 168 h after treatment (HAT) was similar to POA plus UAN 24 HAT. However, 168 HAT there was no difference in the total amount of radiolabelled material translocated among the adjuvants.



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1. Anonymous. 1990. Accent™ Herbicide. Technical Bulletin. E. I. du Pont deNemours and Co. Inc., Agricultural Products Dep., Wilmington, DE. 12 p.
2. Beckett, T. H. and Stoller, E. W. 1991. Effects of methylammonium and urea ammonium nitrate uptake of thifensulfuron in velvetleaf (Abutilon theophrasti). Weed Sci. 39: 333338.
3. Bruce, J. A. and Kells, J. J. 1992. Selective postemergence quackrass [Elytrigia repens (L.) Nevski] control in corn—a two year summary. Abstr. Weed Sci. Soc. Am. 32: 12.
4. Bruce, J. A., Penner, D., and Kells, J. J. 1993. Absorption and activity of nicosulfuron and primisulfuron in quackgrass (Elytrigia repens) as affected by adjuvants. Weed Sci. 41: 218224.
5. Camacho, R. F. and Moshier, L. J. 1991. Absorption, translocation, and activity of CGA-136872, DPX-V9360, and glyphosate in rhizome johnsongrass (Sorghum halepense). Weed Sci. 39: 354357.
6. Camacho, R. F., Moshier, L. J., Morishita, D. W., and Devlin, D. L. 1992. Rhizome johnsongrass (Sorghum halepense) control in corn (Zea mays) with primisulfuron and nicosulfuron. Weed Technol. 5: 789794.
7. Coupland, D and Caseley, J. C. 1979. Presence of 14C activity in root exudates and guttation fluid from Agropyron repens treated with 14C-la-belled glyphosate. New Phytol. 83: 1722.
8. Coupland, D. 1984. The effect of temperature on the activity and metabolism of glyphosate applied to rhizome fragments of Elymus repens(= Agropyron repens). Pestic. Sci. 15: 226234.
9. Edmund, R. M. Jr. and York, A. C. 1987. Effects of rainfall and temperature on postemergence control of sicklepod (Cassia obtusifolia) with imazaquin and DPX-F6025. Weed Sci. 35: 231236.
10. Fielding, R. J. and Stoller, E. W. 1990. Effects of additives on the efficacy, uptake and translocation of the methyl ester of thifensulfuron. Weed Sci. 38: 172178.
11. Fielding, R. J. and Stoller, E. W. 1990. Effects of additives on efficacy, uptake, and translocation of chlorimuron ethyl ester. Weed Technol. 4: 264271.
12. Hart, S. E. and Penner, D. 1993. Atrazine reduces primisulfuron transport to meristems of giant foxtail (Setaria faberi) and velvetleaf (Abutilon theophrasti). Weed Sci. 41: 2833.
13. Holm, L. G., Plucknett, D. L., Pancho, J. V., and Herberger, J. P. 1977. The World's Worst Weeds: Distribution and Biology. University Press of Hawaii, Honolulu. 609 pp.
14. Hsiao, T. C. 1973. Plant response to water stress. Ann. Rev. Plant Physiol. 24: 519570.
15. Nalewaja, J. D. and Adamczewski, K. A. 1988. Thiameturon phytotoxicity to kochia (Kochia scoparia). Weed Sci. 36: 296300.
16. Nalewaja, J. D. and Wonzica, Z. 1985. Environment and chlorsulfuron phytotoxicity. Weed Sci. 33: 395399.
17. Obrigawitch, T. A., Kenyon, W. H., and Kuratle, H. 1990. Effect of application timing on rhizome johnsongrass (Sorghum halpense) control with DPX-V9360. Weed Sci. 38: 4549.
18. Oyarzabal, E. S. and Owen, M. D. K. 1992. Nicosulfuron and primisulfuron-methyl activity in shattercane (Sorghum bicolor) and woolly cupgrass (Eriochloa villosa) grown under water stress. Abstr. Weed Sci. Soc. Am. 32: 5.
19. Rossi, F. S. and Neal, J. C. 1991. Fate of fenoxaprop applied to moisture stressed crabgrass (Digitaria ischaeum) Abstr. Weed Sci. Soc. Am. 31: 56.
20. Thompson, M. A., Witt, W. W., Martin, J. R., and Slack, C. H. 1989. The efficacy of DPX-V9360 and CGA-136872 on johnsongrass (Sorghum halepense) control in corn. Abstr. Weed Sci. Soc. Am. 29: 4.
21. Zhao, C. C., Teasdale, J. R., and Coffinan, C. B. 1990. Factors affecting the activity of thifensulfuron. Weed Sci. 38: 553557.
22. Zollinger, R. K. and Kells, J. J. 1991. Effect of soil pH, soil water, light intensity, and temperature on perennial sowthistle (Sonchus arvensis L.). Weed Sci. 39: 376384.



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