Hostname: page-component-586b7cd67f-g8jcs Total loading time: 0 Render date: 2024-11-29T00:51:39.927Z Has data issue: false hasContentIssue false
  • English
  • Français

The Effect of 2,4-D on Germination of Pigweed Seed

Published online by Cambridge University Press:  12 June 2017

M. Rojas-Garciduenas  and
Thor Kommedahl
M. Rojas-Garciduenas
Affiliation:
Department of Plant Pathology and Botany, University of Minnesota, Institute of Agriculture, St. Paul, Minnesota
Thor Kommedahl
Affiliation:
Department of Plant Pathology and Botany, University of Minnesota, Institute of Agriculture, St. Paul, Minnesota
Get access

Extract

The use of 2,4-dichlorophenoxyacetic acid (2,4-D) to control annual weeds such as pigweed (Amaranthus retroflexus L.) is common. Abundant evidence has been published to show that 2,4-D affects germination and subsequent seedling development. Allard et al. found that 2,4-D delayed germination and caused abnormalities in seedlings of 22 broadleaf and cereal species. Elongation of radicles was inhibited in mustard seedlings and in both non-dormant and embryo-dormant seeds as well as in seeds with impermeable seed coats. Germination can not only be delayed but can be inhibited, although at low concentrations of 2,4-D germination may be accelerated. Leachates produced by rainfall coming in contact with 2,4-D in soil were deleterious to seeds of flax and corn. To explore further the effects of 2,4-D on seeds, germination tests were made with scarified and nonscarified seeds of pigweed and on the effect on yield and germination of seeds harvested from pigweed plants that were sprayed with sublethal doses of 2,4-D in field plots.

Type
Research Article
Information
Weeds , Volume 8 , Issue 1 , January 1960 , pp. 1 - 5
Copyright
Copyright © 1960 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. Allard, R. W., DeRose, H. R., and Swanson, C. P. Some effects of plant growth-regulators on seed germination and seedling development. Bot. Gaz. 107:575–583. 1946.CrossRefGoogle Scholar
2. Arakert, H. R., and Dunham, R. S. Environmental factors relating to the preemergence treatment of corn with 2,4-D and soybeans with TCA. Minnesota Agr. Exp. Sta. Tech. Bul. 190. 1950.Google Scholar
3. Barton, L. V. Respiration and germination studies of seeds in moist storage. Ann. New York Acad. Sci. 46:185–208. 1945.CrossRefGoogle Scholar
4. Everson, L. E., and Dunham, R. S. The effect of 2,4—dichlorophenoxyacetic acid on certain weed and crop seeds. Minnesota Agr. Exp. Sta. Tech. Bul. 197. 1951.Google Scholar
5. Hamner, C. L., Moulton, J. E., and Tukey, H. B. Effect of treating soil and seeds with 2,4-D on germination and development of seedlings. Bot. Gaz. 107:352–361. 1946.CrossRefGoogle Scholar
6. Hsueh, Y. L., and Lou, C. H. Effects of 2,4-D on seed germination and respiration. Science 105:283–285. 1947.CrossRefGoogle ScholarPubMed
7. Mitchell, J. W., and Brown, J. W. Relative sensitivity of dormant and germinating seeds to 2,4-D. Science 106:266–267. 1947.Google Scholar
8. Rojas-Garciduenas, M., and Kommedahl, T. Effect of light and 2,4-D on germination of pigweed seeds. Res. Rpt. NCWCC 12:77. 1955.Google Scholar
9. Stevens, O. A. Weights of seeds and numbers per plant. Weeds 5:46–55. 1957.Google Scholar