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Artificial and natural seed banks differ in seedling emergence patterns

Published online by Cambridge University Press:  20 January 2017

Micheal D. K. Owen
Affiliation:
Department of Agronomy, Iowa State University, Ames, IA 50011

Abstract

Artificial weed seed banks are practical for studying seed bank depletion and weed seedling emergence because the number, depth, and species composition of seed banks can be managed. However, no studies have determined whether artificial seed banks are representative of natural seed banks. We compared the emergence of velvetleaf, giant foxtail, and common waterhemp in a natural seed bank, an artificial seed bank with stratified seeds, and an artificial seed bank with nonstratified seeds. Velvetleaf seedling emergence was higher in the nonstratified seed bank in 2001, but no differences were observed in 2002. The number of viable velvetleaf seeds at the end of the experiment was lower in the natural seed bank than in the artificial seed banks in 2002. Velvetleaf emergence occurred earlier in the natural seed bank than in the artificial seed banks. Giant foxtail emergence was higher in the artificial seed banks (58 to 82%) than in the natural seed bank (5 to 23%). Common waterhemp emergence ranged from 7 to 65% in the artificial seed banks and from 1 to 5% in the natural seed bank. In general, the distribution of emergence with time differed in the natural seed bank compared with the artificial seed banks. These differences were attributed to differences in soil temperature and soil bulk density between the natural and artificial seed banks. Artificial seed banks showed lower soil bulk density and greater temperature fluctuation than the natural seed bank. However, there was no consistent relationship between growing degree days and emergence timing in the three treatments for any of the species studied.

Type
Weed Biology and Ecology
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Bello, I. A., Hatterman-Valenti, H., and Owen, M. D. K. 1998. Effects of stratification, temperature, and oxygen on woolly cupgrass (Eriochloa villosa) seed dormancy. Weed Sci 46:526529.Google Scholar
Benech-Arnold, R. L., Ghersa, C. M., Sanchez, R. A., and Insausti, P. 1990. A mathematical model to predict Sorghum halepense (L.) Pers. seedling emergence in relation to soil temperature. Weed Res 30:9199.Google Scholar
Bridges, D. C., Wu, H. I., Sharpe, P. J. H., and Chandler, J. M. 1989. Modeling distributions of crop and weed seed germination time. Weed Sci 37:724729.Google Scholar
Buhler, D. D. 1999. Weed population responses to weed control practices. I. Seed bank, weed populations, and crop yields. Weed Sci 47:416422.CrossRefGoogle Scholar
Buhler, D. D., Hartzler, R. G., and Forcella, F. 1997. Implications of weed seedbank dynamics to weed management. Weed Sci 45:329336.Google Scholar
Cavers, P. B. 1983. Seed demography. Can. J. Bot 61:35783590.Google Scholar
Ekstam, B. and Forseby, A. 1999. Germination response of Phragmites australis and Typha latifolia to diurnal fluctuations in temperature. Seed Sci. Res 9:157163.Google Scholar
Forcella, F. 1993. Seedling emergence model for velvetleaf. Agron. J 85:929933.Google Scholar
Forcella, F., Benech-Arnold, R. L., Sanchez, R., and Ghersa, C. M. 2000. Modeling seedling emergence. Field Crops Res 67:123139.CrossRefGoogle Scholar
Forcella, F., Wilson, R. G., and Dekker, J. et al. 1997. Weed seed bank emergence across the Corn Belt. Weed Sci 45:6776.Google Scholar
Gallagher, R. S. and Cardina, J. 1998. Phytochrome-mediated Amaranthus germination I: effect of seed burial and germination temperature. Weed Sci 46:4852.Google Scholar
Gross, K. 1990. A comparison of methods for estimating seed numbers in the soil. J. Ecol 78:10791093.CrossRefGoogle Scholar
Hartzler, R. G., Buhler, D. D., and Stoltenberg, D. E. 1999. Emergence characteristics of four annual weed species. Weed Sci 47:578584.Google Scholar
Jurik, T. W. and Zhang, S. 1999. Tractor wheel traffic effects on weed emergence in Central Iowa. Weed Technol 13:741746.Google Scholar
Kegode, G. O. and Pearce, R. B. 1998. Influence of environment during maternal plant growth on dormancy of shattercane (Sorghum bicolor) and giant foxtail (Setaria faberi) seed. Weed Sci 46:322329.Google Scholar
Kegode, G. O., Pearce, R. B., and Bailey, T. B. 1998. Influence of fluctuating temperatures on emergence of shattercane (Sorghum bicolor) and giant foxtail (Setaria faberi). Weed Sci 46:330335.Google Scholar
Kuehl, R. O. 2000. Design of Experiments: Statistical Principles of Research Design and Analysis. 2nd ed. Pacific Grove. CA: Duxbury. Pp. 291292.Google Scholar
Leon, R. G., Knapp, A. D., and Owen, M. D. K. 2004. Effect of temperature on the germination of common waterhemp, giant foxtail, and velvetleaf. Weed Sci 52:6773.CrossRefGoogle Scholar
Leon, R. G. and Owen, M. D. K. 2003. Regulation of weed seed dormancy through light and temperature interactions. Weed Sci 51:752758.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 40:424428.CrossRefGoogle Scholar
Mester, T. C. and Buhler, D. D. 1991. Effects of soil temperature, seed depth, and cyanazine on giant foxtail (Setaria faberi) and velvetleaf (Abutilon theophrasti) seedling development. Weed Sci 39:204209.CrossRefGoogle Scholar
Moore, R. P. ed. 1985. Handbook on Tetrazolium Testing. 1st ed. Zurich, Switzerland: International Seed Testing Association. Pp. 932.Google Scholar
Mulugeta, D. and Stoltenberg, D. E. 1997a. Seed bank characterization and emergence of a weed community in a moldboard plow system. Weed Sci 45:5460.Google Scholar
Mulugeta, D. and Stoltenberg, D. E. 1997b. Increased weed emergence and seed bank depletion by soil disturbance in a no-tillage system. Weed Sci 45:234241.CrossRefGoogle Scholar
Pareja, M. R. and Staniforth, D. W. 1985. Seed-soil microsite characteristics in relation to weed seed germination. Weed Sci 33:190195.Google Scholar
Pillai, K. C. S. 1955. Some new test criteria in multivariate analysis. Ann. Math. Statist 26:117121.Google Scholar
Pritchard, H. W., Steadman, K. J., Nash, J. V., and Jones, C. 1999. Kinetics of dormancy release and the high temperature germination response in Aesculus hippocastanum seeds. J. Exp. Bot 50:15071514.Google Scholar
Prostko, E. P., Wu, H., and Chandler, J. M. 1998. Modeling seedling johnsongrass (Sorghum halepense) emergence as influenced by temperature and burial depth. Weed Sci 46:549554.Google Scholar
Reuss, S. A., Buhler, D. D., and Gunsolus, J. L. 2001. Effects of soil depth and aggregate size on weed seed distribution and viability in a silt loam soil. Appl. Soil Ecol 16:209217.Google Scholar
Sawma, J. T. and Mohler, C. L. 2002. Evaluating seed viability by an unimbibed seed crush test in comparison with the tetrazolium test. Weed Technol 16:781786.Google Scholar
Taylorson, R. B. 1970. Changes in dormancy and viability of weed seeds in soils. Weed Sci 18:265269.CrossRefGoogle Scholar
Washitani, I. and Takenaka, A. 1984. Mathematical description of the seed germination dependency on time and temperature. Plant Cell Environ 7:359362.CrossRefGoogle Scholar
Webster, T. M., Cardina, J., and Norquay, H. M. 1998. Tillage and seed depth effects on velvetleaf (Abutilon theophrasti) emergence. Weed Sci 46:7682.CrossRefGoogle Scholar