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Germination, Growth, and Ecology of Sicklepod

Published online by Cambridge University Press:  12 June 2017

J. M. Creel Jr. ,
C. S. Hoveland  and
G. A. Buchanan
J. M. Creel Jr.
Affiliation:
Auburn University
C. S. Hoveland
Affiliation:
Department of Agronomy and Soils, Auburn University Agricultural Experiment Station, Auburn, Alabama
G. A. Buchanan
Affiliation:
Department of Agronomy and Soils, Auburn University Agricultural Experiment Station, Auburn, Alabama
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Abstract

Germination, growth, and potential phytotoxicity of sicklepod (Cassia obtusifolia L.) were studied. Seed germination occurred in the temperature range from 18 to 36 C, but rapid seedling growth occurred only between 30 and 36 C. Seed dormancy caused by a waxy coat resulted in only 15% germination in soil over a 12-month period. A 1:15 (g/ml) water extract of sicklepod tops inhibited germination of cotton (Gossypium hirsutum L.) and oat (Avena sativa L.) seed. Incorporation of sicklepod residues in soil reduced germination of cotton seed but increased persistence of sericea (Lespedeza cuneata (Dumont) G. Don.) and crimson clover (Trifolium incarnatum L.) because damping-off was almost eliminated. There was evidence in nutrient cultures that sicklepod released a phytotoxic residue from its roots, reducing growth of cotton but having no effect on soybeans (Glycine max (L.) Merr.). Sicklepod grew well in soils ranging from pH 3.2 to 7.9. Sicklepod response to N, P, and K levels was similar to cotton and higher than that of soybeans.

Type
Research Article
Information
Weed Science , Volume 16 , Issue 3 , July 1968 , pp. 396 - 400
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

1. Bonner, J. and Galston, A. W. 1945. Toxic substances from the culture media of guayule which may inhibit growth. Bot. Gaz. 106:185–196.Google Scholar
2. Chaven, A. B. and Trivedi, P. N. 1962. Seed germination in some weeds. Indian Forester. 88:436–439.Google Scholar
3. Gray, R. and Bonner, J. 1948. Structure determination and synthesis of a plant growth inhibitor 3-acetyl-6-methoxy-benzal-dehyde, found in the leaves of Encilia farinosa . Amer. Chem. Soc. 70:1249–1253.Google Scholar
4. Gressel, J. B. and Holm, L. G. 1964. Chemical inhibition of crop germination by weed seeds and the nature of inhibition by Abutilon theophrasti . Weed Res. 4:44–53.Google Scholar
5. Hunter, J. R. and Erickson, A. E. 1952. Relation of seed germination to soil moisture tension. Agron. J. 44:107–109.Google Scholar
6. LeTourneau, D., Failer, G. S., and Heggeness, H. G. 1956. The effect of aqueous extracts of plant tissue on germination and seedling development of certain crop plants. Weeds 4:363–368.Google Scholar
7. Stout, M. and Tolman, B. 1941. Factors affecting the germination of sugar beet and other seed with special reference to the toxic effects of ammonia. J. Agr. Res. 65:687–713.Google Scholar
8. Warren, K. S. 1962. Ammonia toxicity and pH. Nature 195:47–49.Google Scholar