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Factors Influencing Germination and Emergence of Florida Beggarweed (Desmodium tortuosum)

Published online by Cambridge University Press:  12 June 2017

John Cardina  and
James E. Hook
John Cardina
Affiliation:
USDA-ARS, Coastal Plain Exp. Stn., Tifton, GA 31793
James E. Hook
Affiliation:
Univ. GA., Coastal Plain Exp. Stn., Tifton, GA 31793
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Abstract

Florida beggarweed germination in laboratory experiments was highest between 21 and 38 C and at osmotic potentials above −0.2 MPa, with complete germination inhibition below −0.8 MPa. Patterns of seedling emergence in the field corresponded to timing and size of rainfall events in relation to the time of soil disturbance. Smaller percentage total seasonal emergence was observed following large rainfall events where soil had not been disturbed compared with plots recently disturbed, and soil disturbance not followed by rainfall did not promote major weed flushes.

Keywords

Florida beggarweedDesmodium tortuosum (Sw.)DC. #3 DEDTOOsmotic potentialrainfalltemperaturetillageArachis hypogaeaDEDTO
Type
Research
Information
Weed Technology , Volume 3 , Issue 2 , June 1989 , pp. 402 - 407
Copyright
Copyright © 1989 by the Weed Science Society of America 

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References

Literature Cited

1. Chatterton, N. J., and Kadish, A. R. 1969. A temperature gradient germinator. Agron. J. 61:643–644.Google Scholar
2. Crowley, R. H., and Buchanan, G. A. 1980. Responses of Ipomoea spp. and smallflower morningglory (Jacquemontia tamnifolia) to temperature and osmotic stress. Weed Sci. 28:76–82.Google Scholar
3. Hauser, E. W., Buchanan, G. A., and Ethredge, W. J. 1975. Competition of Florida beggarweed and sicklepod with peanuts. I. Effects of periods of weed-free maintenance on weed competition. Weed Sci. 23:368–372.Google Scholar
4. Hoveland, C. S., and Buchanan, G. A. 1973. Weed seed germination under simulated drought. Weed Sci. 21:322–324.Google Scholar
5. Justice, O. L. 1944. Germination of seed of Florida beggarweed. Assoc. Offic. Seed Anal. Proc. 35:103–104.Google Scholar
6. Michel, B. E., and Kaufmann, M. R. 1973. The osmotic potential of polyethylene glycol 6000. Plant Physiol. 51:914–916.Google Scholar
7. Pareja, M. A., and Staniforth, D. W. 1985. Seed-soil microsite characteristics in relation to weed seed germination. Weed Sci. 33:190–195.CrossRefGoogle Scholar
8. Roberts, H. A. 1984. Crop and weed emergence patterns in relation to time of cultivation and rainfall. Ann. Appl. Biol. 105:263–275.Google Scholar
9. SAS Institute. 1979. SAS User's Guide. Cary, NC. p. 173–178.Google Scholar
10. Steel, R.G.D., and Torrie, J. H. 1960. Principles and procedures of statistics. McGraw-Hill, Inc., New York. p. 158.Google Scholar
11. Stoller, E. W., and Wax, L. M. 1973. Periodicity of germination and emergence of some annual weeds. Weed Sci. 21:574–580.Google Scholar
12. Teem, D. H., Hoveland, C. S., and Buchanan, G. A. 1980. Sicklepod (Cassia obtusifolia) and coffee senna (Cassia occidentalis) geographic distribution, germination, and emergence. Weed Sci. 28:68–71.CrossRefGoogle Scholar
13. Williams, R. D. 1980. Moisture stress and hydration-dehydration effects on hemp sesbania (Sesbania exaltata) seed germination. Weed Sci. 28:487–492.Google Scholar
14. Young, J. A., Evans, R. A., Roundy, B., and Cluff, G. 1983. Moisture stress and seed germination. USDA-ARS, Agric. Rev. Manuals, West. Ser. No. 36.Google Scholar