Hostname: page-component-cd9895bd7-dzt6s Total loading time: 0 Render date: 2024-12-18T13:50:27.303Z Has data issue: false hasContentIssue false
  • English
  • Français

Effects of Preemergence Herbicides on Soybean (Glycine max): Weed Competition

Published online by Cambridge University Press:  12 June 2017

Timothy E. Adcock ,
Philip A. Banks  and
David C. Bridges
Timothy E. Adcock
Affiliation:
Dep. Agron., Univ. Georgia, Athens, GA 30602
Philip A. Banks
Affiliation:
Dep. Agron., Univ. Georgia, Athens, GA 30602
David C. Bridges
Affiliation:
Georgia Exp. Stn., Griffin, GA 30223
Get access Rights & Permissions [Opens in a new window]

Abstract

Glasshouse experiments were conducted to evaluate the effects of preemergence applications of metribuzin, pendimethalin, alachlor, and imazaquin on the competitive relationship between soybean and sicklepod, tall morningglory, or common cocklebur. An equal-ratio series design was employed where the proportion of species in a mixture remained constant and total plant density was varied. The ratio of soybean:sicklepod fresh weights was altered by alachlor and imazaquin while the ratio of soybean:tall morningglory fresh weights was altered only by imazaquin. The ratio of soybean:common cocklebur fresh weights was altered by metribuzin and imazaquin. Increasing herbicide rates resulted in higher soybean:weed fresh weight ratios and higher herbicide response coefficients.

Keywords

Metribuzin, 4-amino-6- (1,1-dimethylethyl)-3-(methylthio) - 1,2,4-triazin-5(4H)-onependimethalin, N-(1-ethylpropyl)-3,4-dimethyl-2,6-dinitrobenzenaminealachlor, 2-chloro-N-(2,6-diethylphenyl)-N-(methoxymethyl)acetamideimazaquin, 2-[4,5-dihydro - 4 - methyl - 4 - (1-(methylethyl)-5-oxo-1H-imidazol-2-yl]-3-quinolinecarboxylic acidsoybean, Glycine max (L.) Merr. ‘Gordon’sicklepod, Cassia obtusifolia L. ♯ CASOBtall morningglory, Ipomoea purpurea (L.) Roth. ♯ PHBPUcommon cocklebur, Xanthium strumarium L. ♯ XANSTCompetitionequal-ratio seriesherbicide response coefficientCASOBPHBPUXANST
Type
Weed Biology and Ecology
Information
Weed Science , Volume 38 , Issue 2 , March 1990 , pp. 108 - 112
Copyright
Copyright © 1990 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. Coble, H. D. 1986. Using economic thresholds for weeds in soybeans. Proc. South. Weed Sci. Soc. 39:484.Google Scholar
2. Coble, H. D. and Schrader, J. W. 1973. Soybean tolerance to metribuzin. Weed Sci. 21:308–309.Google Scholar
3. Crowley, R. H., Teem, D. H., Buchanan, G. A., and Hoveland, C. S. 1979. Responses of Ipomoea spp. and Cassia spp. to preemergence applied herbicides. Weed Sci. 27:531–535.CrossRefGoogle Scholar
4. Fedtke, C. 1979. Physiological responses of soybean (Glycine max) plants to metribuzin. Weed Sci. 27:192–195.Google Scholar
5. French, C. M. 1987. Chemical weed control in soybeans. Univ. Georgia Coop. Ext. Bull. 832.Google Scholar
6. Hagood, E. S. Jr., Williams, J. L. Jr., and Bauman, T. T. 1980. Influence of herbicide injury on the yield potential of soybeans (Glycine max). Weed Sci. 28:40–45.CrossRefGoogle Scholar
7. Henry, W. T. and Bauman, T. T. 1988. Area of interference of common cocklebur (Xanthium strumarium) and jimsonweed (Datura stramonium) in soybeans. Weed Sci. Soc. Am. Abstr. 28:55–56.Google Scholar
8. Jones, R. E. and Banks, P. A. 1988. Verification of a herbicide decision model in Georgia. Proc. South. Weed Sci. Soc. 41:314.Google Scholar
9. Mageot, B. L., Slife, F. E., and Rieck, C. E. 1979. Differential metabolism of metribuzin by two soybean (Glycine max) cultivars. Weed Sci. 27:267–269.Google Scholar
10. McWhorter, C. G. and Anderson, J. M. 1976. Effectiveness of metribuzin applied preemergence for economical control of common cocklebur in soybeans. Weed Sci. 24:385–390.Google Scholar
11. McWhorter, C. G. and Barrentine, W. L. 1975. Cocklebur control in soybeans as affected by cultivars, seeding rates, and methods of weed control. Weed Sci. 23:386–390.Google Scholar
12. Radosevich, S. R. 1987. Methods to study interactions among crops and weeds. Weed Technol. 1:190–198.Google Scholar
13. Radosevich, S. R. and Holt, J. S. 1984. Weed Ecology: Implications for Vegetation Management. Pages 93–138. John Wiley and Sons, New York.Google Scholar
14. Shurtleff, J. L. and Coble, H. D. 1985. Interference of certain broadleaf weed species in soybeans (Glycine max). Weed Sci. 33:654–657.Google Scholar
15. Struckmeyer, B. E., Binning, L. K., and Harvey, R. G. 1976. Effect of dinitroanaline herbicides on a soil medium on snap bean and soybean. Weed Sci. 24:366–369.Google Scholar
16. Wilson, H. P. and Cole, R. H. 1966. Morningglory competition in soybeans. Weeds 14:49–51.Google Scholar