Hostname: page-component-cd9895bd7-8ctnn Total loading time: 0 Render date: 2024-12-19T01:03:36.059Z Has data issue: false hasContentIssue false
  • English
  • Français

Giant Green Foxtail (Setaria viridis var. major) and Fall Panicum (Panicum dichotomiflorum) Competition in Soybeans (Glycine max)

Published online by Cambridge University Press:  12 June 2017

Thomas C. Harris  and
Ronald L. Ritter
Thomas C. Harris
Affiliation:
Agron. Dep., Univ. Maryland, College Park, MD 20742
Ronald L. Ritter
Affiliation:
Agron. Dep., Univ. Maryland, College Park, MD 20742
Get access Rights & Permissions [Opens in a new window]

Abstract

Effects of a natural mixed stand of giant green foxtail [Setaria viridis var. major (Gaudin) Pospichel # SETVM] and fall panicum [Panicum dichotomiflorum Michx. # PANDI] on soybean [Glycine max (L.) Merr. ‘Union’ and ‘Essex′] biomass and seed yield were investigated during 1981, 1982, and 1983. Plots maintained weed free for 2 weeks after soybean emergence produced yields equal to those maintained weed free for the season despite any grass reinfestation. Grasses growing naturally with soybeans for 8 weeks after soybean emergence did not reduce crop yields. Weeds not removed after 8 weeks reduced soybean yields by decreasing the number of pods per plant. Under drought conditions, yield reduction due to grass competition did not occur until 12 to 16 weeks after soybean emergence. Hand-established densities of 1 grass plant/7.5 cm of crop row reduced soybean yield by 0 to 11%. Natural grass infestations reduced soybean yield by 21 to 41%.

Keywords

Interferenceweed densitySETVMPANDI
Type
Weed Biology and Ecology
Information
Weed Science , Volume 35 , Issue 5 , September 1987 , pp. 663 - 668
Copyright
Copyright © 1987 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. Bloomberg, J. R., Kirkpatrick, B. L., and Wax, L. M. 1982. Competition of common cocklebur (Xanthium pensylvanicum) with soybean (Glycine max). Weed Sci. 30:507–513.CrossRefGoogle Scholar
2. Coble, H. D., Williams, F. M., and Ritter, R. L. 1981. Common ragweed (Ambrosia artemisiifolia) interference in soybeans (Glycine max). Weed Sci. 29:339–342.CrossRefGoogle Scholar
3. Cordes, R. C. and Bauman, T. T. 1984. Field competition between ivyleaf morningglory (Ipomoea hederacea) and soybeans (Glycine max). Weed Sci. 32:364–370.CrossRefGoogle Scholar
4. Doss, B. D., Pearson, R. W., and Rogers, H. T. 1974. Effect of soil water stress at various growth stages on soybean yield. Agron. J. 66:297–299.CrossRefGoogle Scholar
5. Eaton, B. J., Feltner, K. C., and Russ, O. G. 1973. Venice mallow competition in soybeans. Weed Sci. 21:89–94.CrossRefGoogle Scholar
6. Hagood, E. S. Jr., Bauman, T. T., Williams, J. L., and Schreiber, M. M. 1980. Growth analysis of soybeans (Glycine max) in competition with velvetleaf (Abutilon theophrasti). Weed Sci. 28:729–734.CrossRefGoogle Scholar
7. Hagood, E. S. Jr., Bauman, T. T., Williams, J. L., and Schreiber, M. M. 1981. Growth analysis of soybeans (Glycine max) in competition with jimsonweed (Datura stramonium). Weed Sci. 29:500–504.CrossRefGoogle Scholar
8. Harrison, S. K., Williams, C. S., and Wax, L. M. 1985. Interference and control of giant foxtail (Setaria faberi) in soybeans (Glycine max). Weed Sci. 33:203–208.CrossRefGoogle Scholar
9. Knake, E. L. and Slife, F. W. 1962. Competition of Setaria faberi with corn and soybeans. Weeds 10:26–29.CrossRefGoogle Scholar
10. Knake, E. L. and Slife, R. W. 1965. Giant foxtail seeded at various times in corn and soybeans. Weeds 13:331–334.CrossRefGoogle Scholar
11. Knake, E. L. and Slife, F. W. 1969. Effect of time of giant foxtail removal from corn and soybeans. Weed Sci. 17:281–283.CrossRefGoogle Scholar
12. Korte, L. L., Specht, J. E., Williams, J. H., and Sorensen, R. C. 1983. Irrigation of soybean genotypes during reproductive ontogeny. II. Yield Component Responses. Crop Sci. 23:528–533.CrossRefGoogle Scholar
13. Meckel, L., Egli, D. B., Phillips, R. E., Radcliffe, D., and Leggett, J. E. 1984. Effect of moisture stress on seed growth in soybeans. Agron. J. 76:647–650.CrossRefGoogle Scholar
14. Oliver, L. R. and Schreiber, M. M. 1971. Differential selectivity of herbicides on six Setaria taxa. Weed Sci. 19:428–431.CrossRefGoogle Scholar
15. Orwick, P. L. and Schreiber, M. M. 1979. Interference of redroot pigweed (Amaranthus retroflexus) and robust foxtail (Setaria viridis var. robusta-alba or var. robusta-purpurea) in soybeans (Glycine max). Weed Sci. 27:665–674.CrossRefGoogle Scholar
16. Santelmann, P. W., Meade, J. A., and Peters, R. A. 1963. Growth and development of yellow foxtail and giant foxtail. Weeds 11:139–142.CrossRefGoogle Scholar
17. Schreiber, M. M. and Oliver, L. R. 1971. Two new varieties of Setaria viridis . Weed Sci. 19:424–427.CrossRefGoogle Scholar
18. Staniforth, D. W. 1958. Soybean – foxtail competition under varying soil moisture conditions. Agron. J. 50:13–15.CrossRefGoogle Scholar
19. Thompson, L. 1972. Metabolism of chloro s-triazine herbicides by Panicum and Setaria . Weed Sci. 20:584–587.CrossRefGoogle Scholar
20. Vanden Born, W. H. 1971. Green foxtail: seed dormancy, germination and growth. Can. J. Plant Sci. 51:53–59.CrossRefGoogle Scholar
21. Vengris, J. and Damon, R. A. Jr. 1976. Field growth of fall panicum and witchgrass. Weed Sci. 24:205–208.CrossRefGoogle Scholar
22. Young, F. L., Wyse, D. L., and Jones, R. J. 1982. Influence of quackgtass (Agropyron repens) density and duration of interference on soybeans (Glycine max). Weed Sci. 30:614–619.CrossRefGoogle Scholar