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Palmer Amaranth (Amaranthus palmeri) Interference in Soybeans (Glycine max)

Published online by Cambridge University Press:  12 June 2017

Tracy E. Klingaman  and
Lawrence R. Oliver
Tracy E. Klingaman
Affiliation:
Dep. Agron., Univ. Arkansas, Fayetteville, AR 72701
Lawrence R. Oliver
Affiliation:
Dep. Agron., Univ. Arkansas, Fayetteville, AR 72701
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Abstract

A 2-yr field study was conducted at Fayetteville, AR, to determine the effect of Palmer amaranth interference on soybean growth and yield. Palmer amaranth density had little effect on soybean height, but soybean canopy width ranged from 77 cm in the weed-free check to 35 cm in plots with 10 plants m–1 of row 12 wk after emergence. Soybean yield reduction was highly correlated to Palmer amaranth biomass at 8 wk after emergence and maturity, soybean biomass at 8 wk after emergence, and Palmer amaranth density. Soybean yield reduction was 17, 27, 32, 48, 64, and 68%, respectively, for Palmer amaranth densities of 033, 0.66, 1, 2, 333, and 10 plants m–1 of row. Soybean yield reduction and Palmer amaranth biomass were linear to approximately 2 Palmer amaranth m–1 of row, suggesting intraspecific interference between adjacent Palmer amaranth is initiated at Palmer amaranth densities between 2 and 3.33 plants m–1 of row.

Keywords

Palmer amaranth, Amaranthus palmeri S. Wats # AMAPAsoybeans, Glycine max L. Merr. ‘Forrest.’Competitionmonomolecular growth modelweed densityweed biomassAMAPA
Type
Weed Biology and Ecology
Information
Weed Science , Volume 42 , Issue 4 , December 1994 , pp. 523 - 527
Copyright
Copyright © 1994 by the Weed Science Society of America 

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References

Literature Cited

1. Anonymous. Weed Identification Guide. South. Weed Sci. Soc., Champaign, IL.Google Scholar
2. Baldwin, F. L. and Hall, S. 1992. University of Arkansas Soybean Weed Control Program User's Guide. Coop. Ext. Serv., Little Rock, AR.Google Scholar
3. Barrentine, W. L. and Oliver, L. R. 1977. Competition, threshold levels, and control of common cocklebur in soybeans. Miss. Agric. Exp. Stn. and Arkansas Agric. Exp. Stn. Bull. No. 83. 27 pp.Google Scholar
4. Coble, H. D. and Mortensen, D. A. 1992. The threshold concept and its application to weed science. Weed Technol. 6:191–195.Google Scholar
5. Dillon, T. L., Baldwin, F. L., and Becton, C. M. 1989. Palmer amaranth control on sandy soils in northeast Arkansas. Proc. South. Weed Sci. Soc. 42:113.Google Scholar
6. France, J. and Thornley, J. H. M. 1984. Pages 79–80 in Mathematical Models in Agriculture. Butterworths, Boston.Google Scholar
7. Fernald, M. L. 1950. Page 602 in Gray's Manual of Botany. 8th ed. America Book Co., New York.Google Scholar
8. Gossett, B. J., Murdock, E. C., and Toler, J. E. 1992. Resistance of Palmer amaranth (Amaranthus palmeri) to dinitroaniline herbicides. Weed Technol. 6:587–591.Google Scholar
9. Keeley, P. E., Carter, C. H., and Thullen, R. M. 1987. Influence of planting date on growth of Palmer amaranth (Amaranthus palmeri). Weed Sci. 35:199–204.Google Scholar
10. Keeley, P. E. and Thullen, R. J. 1989. Growth and competition of black nightshade (Solanum nigrum) and Palmer amaranth (Amaranthus palmeri) with cotton (Gossypium hirsutum). Weed Sci. 37:326–334.CrossRefGoogle Scholar
11. Kropff, M. J. and Spitters, C. J. T. 1991. A simple model of crop loss by weed competition from early observations on relative leaf area of the weeds. Weed Res. 31:97–105.Google Scholar
12. Menges, R. M. 1987. Allelopathic effects of Palmer amaranth (Amaranthus palmeri) and other plant residues in soil. Weed Sci. 35:339–347.CrossRefGoogle Scholar
13. Menges, R. M. 1988. Allelopathic effects of Palmer amaranth (Amaranthus palmeri) on seedling growth. Weed Sci. 36:325–328.Google Scholar
14. Monks, D. M. and Oliver, L. R. 1988. Interactions between soybean (Glycine max) cultivars and selected weeds. Weed Sci. 36:770–774.Google Scholar
15. Shelby, R. M. and Mitchell, G. A. 1989. Weed interference with cotton as influenced by tillage. Proc. South. Weed Sci. Soc. 42:100.Google Scholar
16. SAS Institute, Inc. 1985. SAS User's Guide: Statistics. Version 5 ed. SAS Inst., Inc., Cary, NC.Google Scholar
17. Shurtleff, J. L. and Coble, H. D. 1985. Interference of certain broadleaf weed species in soybean (Glycine max). Weed Sci. 33:654–657.CrossRefGoogle Scholar
18. Wilkerson, G. G., Modena, S. A., and Coble, H. D. 1988. HERB v2.0: Herbicide decision model for postemergence weed control in soybeans, user's manual. Bull. No. 113. Crop Sci. Dep., N.C. State Univ., Raleigh, NC.Google Scholar