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Light, Temperature, Seed Burial, and Mulch Effects on Mulberry Weed (Fatoua villosa) Seed Germination

Published online by Cambridge University Press:  20 January 2017

Gina M. Penny  and
Joseph C. Neal
Gina M. Penny
Affiliation:
Department of Horticultural Science, P.O. Box 7609, North Carolina State University, Raleigh, NC 27695-7609
Joseph C. Neal*
Affiliation:
Department of Horticultural Science, P.O. Box 7609, North Carolina State University, Raleigh, NC 27695-7609
*
Corresponding author's E-mail: joe_neal@ncsu.edu
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Abstract

Fatoua villosa (mulberry weed) is a new and invasive weed of container nurseries and landscapes in the southeastern United States. Studies were conducted to determine the effects of light, planting depth, mulch depth, and temperature on mulberry weed seed germination and seedling emergence. Light stimulated mulberry weed seed germination, with less than 5% of seeds germinating in the dark compared with 48 to 60% germinating in the light. In all emergence studies, the highest number of seedlings emerged when seeds were placed on the soil surface, with emergence decreasing as planting or mulch depth increased. Planting depths of ≥ 1.8 cm or mulch depths of ≥ 3.7 cm reduced mulberry weed emergence by ≥ 90%. These data suggest that mulch would control mulberry weed effectively. To study the effects of temperature on germination, two seed batches collected locally in October 1998 and August 1999 were used. Maximum germination of seeds collected in 1998 occurred at 25 C, with germination decreasing at higher temperatures and no germination at lower than 15 C or over 40 C. For seeds collected in 1999, maximum germination occurred from 19 to 29 C, with germination decreasing with temperatures above 29 C or below 19 C. At temperatures of 15 and 42 C germination, percentages were 71 and 11%, respectively. Seedlings germinated at 15 C developed slowly but otherwise appeared normal. For both seed lots, seedlings were stunted and chlorotic at ≥ 38 C. That mulberry weed seed germinated over a wide range of temperatures suggests its potential to emerge throughout most of spring, summer, and autumn in the southeastern United States.

Keywords

Mulberry weedFatoua villosa (Thunb.) NakaiGerminationlightmulchplanting depthtemperature
Type
Research
Information
Weed Technology , Volume 17 , Issue 2 , June 2003 , pp. 213 - 218
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Baird, J. H. and Dickens, R. 1991. Germination and emergence of Virginia buttonweed (Diodia virginiana). Weed Sci. 39: 37–41.Google Scholar
Bhowmik, P. C. 1997. Weed biology: importance to weed management. Weed Sci. 45: 349–356.Google Scholar
Billeaud, L. A. and Zajicek, J. M. 1989. Influence of mulches on weed control, soil pH, soil nitrogen content, and growth of Ligustrum japonicum . J. Environ Hortic. 7/ 4: 155–157.CrossRefGoogle Scholar
Biswas, P. K., Bell, P. D., Crayton, J. L., and Paul, K. B. 1975. Germination behavior of Florida pusley seeds. I. Effects of storage, light, temperature and planting depths on germination. Weed Sci. 23: 400–403.Google Scholar
Buhler, D. D., Hartzler, R. G., and Forcella, F. 1997. Implications of weed seedbank dynamics to weed management. Weed Sci. 45: 329–336.Google Scholar
Eastin, E. F. 1983a. Redweed (Melochia corchorifolia) germination as influenced by scarification, temperature, and seedling depth. Weed Sci. 31: 229–231.Google Scholar
Eastin, E. F. 1983b. Smallflower morningglory (Jacquemontia tamnifolia) germination as influenced by scarification, temperature, and seeding depth. Weed Sci. 31: 727–730.Google Scholar
Greenly, K. M. and Rakow, D. A. 1995. The effect of wood mulch type and depth on weed and tree growth and certain soil parameters. J. Arboric. 21/ 5: 225–232.Google Scholar
Hartman, H. T., Kester, D. E., and Davies, F. T. Jr. 1990. Plant Propagation: Principles and Practices. 5th ed. Englewood Cliffs, NJ: Prentice Hall. pp. 127–128.Google Scholar
Krueger, R. R. and Shaner, D. L. 1982. Germination and establishment of prostrate spurge (Euphorbia supina). Weed Sci. 30: 286–290.Google Scholar
Larsen, A. L. 1965. Use of thermogradient plate for studying temperature effects on seed germination. Proc. Int. Seed Test Assoc. 30/ 4: 861–868.Google Scholar
Lee, T. B. 1985. Illustrated Flora of Korea. Seoul, Korea: Hyangmunsa. 288 p.Google Scholar
MacDonald, G. E., Brecke, B. J., and Shilling, D. G. 1992. Factors affecting germination of dogfennel (Eupatorium capillifolium) and yankeeweed (Eupatorium compositifolium). Weed Sci. 40: 424–428.Google Scholar
Mayer, A. M. and Poljakoff-Mayber, A. 1982. The Germination of Seeds. 3rd ed. Oxford: Pergamon. pp. 22–47, 164–194.Google Scholar
Ohwi, J. 1965. Flora of Japan. Washington, DC: Smithsonian Institution Press. 383 p.Google Scholar
Penny, G. M. 2000. Biology and Management of Mulberry Weed, Fatoua villosa (Thunb.), Nakai. . North Carolina State University, Raleigh, NC. 87 p.Google Scholar
Penny, G. M. and Neal, J. C. 1999. Mulberry weed (Fatoua villosa): a new weed in landscapes and container nursery crops. Proc. S. Weed Sci. Soc. 52: 82.Google Scholar
[SAS] Statistical Analysis Systems. 1988. SAS/STAT User's Guide. Release 6.03. Cary, NC: Statistical Analysis Systems Institute.Google Scholar
Smith, D. R., Gilliam, C. H., Edwards, J. H., Olive, J. W., Eakes, D. J., and Williams, J. D. 1998. Recycled waste paper as a non-chemical alternative for weed control in container production. J. Environ. Hortic. 16/ 2: 69–75.Google Scholar
Soteres, J. K. and Murray, D. S. 1981. Germination and development of honeyvine milkweed (Ampelamus albidus) seed. Weed Sci. 29: 625–628.Google Scholar
Thieret, J. W. 1964. Fatoua villosa (Moraceae) in Louisiana: new to North America. Sida 1: 248.Google Scholar
Vincent, M. A. 1993. Fatoua villosa (Moraceae), mulberry weed, in Ohio. Ohio J. Sci. 93/ 5: 147–149.Google Scholar
Wunderlin, R. P. 1997. Moraceae. In Flora of North America Editorial Committee, eds. Flora of North America North of Mexico. Volume 3. New York: Oxford University Press. pp. 388–392.Google Scholar
Zimdahl, R. L. 1999. Fundamentals of Weed Science. 2nd ed. San Diego, CA: Academic. 95 p.Google Scholar