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Coffee senna (Cassia occidentalis) germination and emergence is affected by environmental factors and seeding depth

Published online by Cambridge University Press:  20 January 2017

Jason K. Norsworthy  and
Marcos J. Oliveira
Marcos J. Oliveira
Affiliation:
Department of Entomology, Soils, and Plant Sciences, Clemson University, Clemson, SC 29634
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Abstract

Laboratory and greenhouse experiments were conducted to determine the effect of light, temperature, moisture stress, solution pH, and burial depth on coffee senna germination and emergence. Seeds germinated equally with or without light, and pretreatment with red or far-red light did not affect germination. Optimum temperature for germination was 25 C, and a high germination percentage (> 70%) occurred from 12.5 to 30 C. The low temperature threshold for germination was between 10 and 12.5 C, whereas the upper threshold was near 45 C. Coffee senna germination in response to moisture stress and solution pH differed at 15 and 30 C. At −0.4 MPa, no germination occurred at 15 C, whereas 15% germination occurred at 30 C. Optimum germination was at pH 6, but further increases in pH had a more negative effect on germination at 15 C than at 30 C. Coffee senna germination ranged from 9 to 12% at pH 3, but was 0% at pH 10, which indicates that coffee senna germination was more tolerant of acidic than basic solutions. Depth-mediated emergence inhibition was sigmoidal, with greatest emergence on the soil surface. Emergence from 2- to 10-cm depths reached 95% of the total emergence 1 to 3 d earlier in a sandy loam than in a sand soil. Mean emergence depth was 1.7 cm in the sand and 2.4 cm in the sandy loam soil. Knowledge gained from this research will be instrumental in developing a better understanding of the requirements for coffee senna germination and emergence, allowing further development and improvement of integrated weed management strategies specific to this troublesome weed.

Keywords

Coffee senna, Cassia occidentalis L. CASOCLight qualitymoisture stresspHtemperatureweed biology
Type
Weed Biology and Ecology
Information
Weed Science , Volume 53 , Issue 5 , October 2005 , pp. 657 - 662
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Battaglia, M. 1997. Seed germination model for Eucalyptus delegatensis provenances germinating under conditions of variable temperature and water potential. Aust. J. Plant Physiol 27:69–79.Google Scholar
Benvenuti, S. 1995. Soil light penetration and dormancy of jimsonweed (Datura stramonium) seeds. Weed Sci 43:389–393.Google Scholar
Benvenuti, S. and Macchia, M. 1997. Light environment, phytochrome and seed germination of Datura stramonium L. seeds. Environ. Exp. Bot 38:61–71.CrossRefGoogle Scholar
Benvenuti, S., Macchia, M., and Miele, S. 2001. Quantitative analysis of emergence of seedlings from buried weed seeds with increasing soil depth. Weed Sci 49:528–535.CrossRefGoogle Scholar
Berkat, O. and Briske, D. D. 1982. Water potential evaluation of three germination substrates utilizing polyethylene glycol 20,000. Agron. J 74:518–521.Google Scholar
Bradford, K. J. 1990. A water relations analysis of seed germination rates. Plant Physiol 94:840–849.CrossRefGoogle ScholarPubMed
Burke, I. C., Thomas, W. E., Spears, J. F., and Wilcut, J. W. 2003. Influence of environmental factors on broadleaf signalgrass (Brachiaria platyphylla) germination. Weed Sci 51:683–689.CrossRefGoogle Scholar
Burleson, A. W., Wilcut, J. W., Askew, S. D., and Bailey, W. A. 1998. Influence of moisture stress and temperature on sicklepod germination. Proc. South. Weed Sci. Soc 51:254–255.Google Scholar
Delachiave, M. E. A. and de Pinho, S. Z. 2003. Germination of Senna occidentalis Link: seed at different osmotic potential levels. Braz. Arch. Biol. Technol 46:163–166.Google Scholar
Hadas, A. 1977. A suggested method for testing seed vigor under water stress in simulated arid conditions. Seed Sci. Technol 5:519–525.Google Scholar
Higgins, J. M., Walker, R. H., and Whitwell, T. 1986. Coffee senna (Cassia occidentalis) competition with cotton (Gossypium hirsutum). Weed Sci 34:52–56.Google Scholar
Hohl, M. and Peter, S. 1991. Water relations of growing maize coleoptiles. Comparison between mannitol and polyethylene glycol 6000 as external osmotica for adjusting turgor pressure. Plant Physiol 95:716–722.Google Scholar
[ISTA] International Seed Testing Association. 1985. International rules for seed testing 1985. Seed Sci. Technol 13:327–483.Google Scholar
Keddy, P. A. and Ellis, T. H. 1985. Seedling recruitment of 11 wetland plant species along a water level gradient: shared or distinct responses? Can. J. Bot 63:1876–1879.Google Scholar
Lafond, G. P. and Baker, R. J. 1986. Effects of genotype and seed size on speed of emergence and seedling vigor in nine spring wheat cultivars. Crop Sci 26:341–346.CrossRefGoogle Scholar
Michel, B. E. 1983. Evaluation of the water potentials of solutions of polyethylene glycol 8000 both in the absence and presence of other solutes. Plant Physiol 72:66–70.Google Scholar
Noronha, A., Andersson, L., and Milberg, P. 1997. Rate of change in dormancy level and light requirement in weed seeds during stratification. Ann. Bot 80:795–801.Google Scholar
Rajapakse, N. C., Margaret, J. M., and Kelly, J. W. 1993. End of day far-red light reverses height reduction of chrysanthemum induced by CuSO4 spectral filters. Sci. Hortic 53:249–259.CrossRefGoogle Scholar
[SAS] Statistical Analysis Systems. 2000. SAS User's Guide. Version 8. Cary, NC: Statistical Analysis Systems Institute.Google Scholar
Silvertown, J. 1980. Leaf-canopy–induced seed dormancy in a grassland flora. New Phytol 85:109–118.Google Scholar
Taylorson, R. B. and Borthwick, H. A. 1969. Light filtration by foliar canopies: significance for light-controlled weed seed germination. Weed Sci 17:48–51.CrossRefGoogle Scholar
Teem, D. H., Hoverland, 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.Google Scholar
Webster, T. M. 2001. Weed survey—southern states: broadleaf crops subsection. Proc. South. Weed Sci. Soc 54:244–259.Google Scholar
Webster, T. M. and MacDonald, G. E. 2001. A survey of weeds in various crops in Georgia. Weed Technol 15:771–790.Google Scholar