Oecologia

, Volume 90, Issue 1, pp 88–94 | Cite as

The dual role of temperature in the regulation of the seasonal changes in dormancy and germination of seeds of Polygonum persicaria L.

  • Harro J. Bouwmeester
  • Cees M. Karssen
Original Papers

Summary

The role of temperature in the regulation of seasonal changes in dormancy and germination was studied in seeds of Polygonum persicaria. Seeds were buried in the field and under controlled conditions. Portions of seeds were exhumed at regular intervals and germination was tested over a range of conditions. Seeds of P. persicaria exhibited a seasonal dormancy pattern that clearly showed the typical features of summer annuals, i.e. dormancy was relieved at low winter temperatures, the germination peak occurred in spring and dormancy was re-induced in summer. The expression of the dormancy pattern was influenced by the temperature at which germination was tested. At 30°C exhumed seeds germinated over a much longer period of the year than at 20° or 10°C. Nitrate added during the germination test occasionally stimulated germination. The seasonal changes in dormancy of buried seeds were regulated by the field temperature. Soil moisture and nitrate content did not influence the changes in dormancy. The fact that, on the one hand, field temperature determined the changes in dormancy and, on the other hand, germination itself was influenced by temperature, was used to describe the seasonal germination pattern of P. persicaria with a model. Germination of exhumed seeds in Petri dishes at field temperature was accurately described with this model. Germination in the field was restricted to the period where the range of temperatures over which germination could proceed (computed with the model) and field temperature overlapped.

Key words

Polygonum persicaria Dormancy pattern Germination Model Weed seeds 

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References

  1. Anonymous (1985) SAS user's guide: Statistics version 5 edition, SAS Institute Inc, Cary, NCGoogle Scholar
  2. Baskin JM, Baskin CC (1977) Role of temperature in the germination ecology of three summer annual weeds. Oecologia 30:377–382Google Scholar
  3. Baskin JM, Baskin CC (1978) A contribution to the germination ecology of Rumex crispus L. Bull Torrey Bot Club 105:278–281Google Scholar
  4. Baskin JM, Baskin CC (1980) Ecophysiology of secondary dormancy in seeds of Ambrosia artemisiifolia. Ecology 61:475–480Google Scholar
  5. Baskin JM, Baskin CC (1981a) Seasonal changes in the germination responses of buried Lamium amplexicaule seeds. Weed Res 21:299–306Google Scholar
  6. Baskin JM, Baskin CC (1981b) Seasonal changes in germination responses of buried seeds of Verbascum thapsus and V. blattaria and ecological implications. Can J Bot 59:1769–1775Google Scholar
  7. Baskin JM, Baskin CC (1983a) Seasonal changes in the germination responses of fall panicum to temperature and light. Can J Plant Sci 63:973–979Google Scholar
  8. Baskin JM, Baskin CC (1983b) Germination ecology of Veronica arvensis. J Ecol 71:57–68Google Scholar
  9. Baskin JM, Baskin CC (1984) Role of temperature in regulating timing of germination in soil seed reserves of Lamium purpureum L. Weed Res 24:341–349Google Scholar
  10. Baskin JM, Baskin CC (1985) The annual dormancy cycle in buried weed seeds: A continuum. BioSci 35:492–498Google Scholar
  11. Bouwmeester HJ (1990) The effect of environmental conditions on the seasonal dormancy pattern and germination of weed seeds. Ph. D. thesis Agricultural University, Wageningen, The NetherlandsGoogle Scholar
  12. Espeby L (1989) Germination of weed seeds and competition in stands of weeds and barley. Influences of mineral nutrients. Crop Prod Sci 6, Uppsala, SwedenGoogle Scholar
  13. Houba VJG, Novozamsky I, Huybregts AWM, Van der Lee JJ (1986) Comparison of soil extractions by 0.01 M CaCl2, by EUF and by some conventional extraction procedures. Plant Soil 96:433–437Google Scholar
  14. Karssen CM (1980/81) Patterns of change in dormancy during burial of seeds in soil. Isr J Bot 29:65–73Google Scholar
  15. Karssen CM (1982) Seasonal patterns of dormancy in weed seeds. In: Khan AA (ed) The physiology and biochemistry of seed development, dormancy and germination. Elsevier Biomedical Press, Amsterdam, pp 243–270Google Scholar
  16. Roberts HA, Feast PM (1973) Emergence and longevity of annual weeds in cultivated and undisturbed soil. J Appl Ecol 10:133–143Google Scholar
  17. Roberts HA, Lockett PM (1978) Seed dormancy and field emergence in Solanum nigrum L. Weed Res 18:231–241Google Scholar
  18. Roberts HA, Neilson JE (1980) Seed survival and periodicity of seedling emergence in some species of Atriplex, Chenopodium, Polygonum and Rumex. Ann Appl Biol 94:111–120Google Scholar
  19. Staniforth RJ, Cavers PB (1979) Field and laboratory germination responses of achenes of Polygonum lapathifolium, P. pensylvanicum and P. persicaria. Can J Bot 57:877–885Google Scholar
  20. Thompson K, Grime JP (1979) Seasonal variation in the seed bank of herbaceous species in ten contrasting habitats. J Ecol 67:893–921Google Scholar
  21. Totterdell S, Roberts EH (1979) Effects of low temperatures on the loss of innate dormancy and the development of induced dormancy in seeds of Rumex obtusifolius L. and Rumex crispus L. Plant Cell Environ 2: 131–137Google Scholar
  22. Van Assche JA, Vanlerberghe KA (1989) The role of temperature on the dormancy cycle of seeds of Rumex obtusifolius L. Funct Ecol 3:107–115Google Scholar
  23. Van den Brand WGM (1986) Opkomstperiodiciteit bij veertig eenjarige akkeronkruidsoorten en enkele daarmee samenhangende onkruidbestrijdingsmaatregelen. Report 53, PAGV, Lelystad, The NetherlandsGoogle Scholar
  24. Van den Brand WGM (1987) Opkomstperiodiciteit bij een aantal eenjarige akkeronkruidsoorten en enkele hiermee samenhangende onkruidbestrijdingsmaatregelen. Gewasbescherming 18:39–45Google Scholar
  25. Vincent EM, Roberts EH (1977) The interaction of light, nitrate and alternating temperature in promoting the germination of dormant seeds of common weed species. Seed Sci Technol 5:659–670Google Scholar
  26. Vincent EM, Roberts EH (1979) The influence of chilling, light and nitrate on the germination of dormant seeds of common weed species. Seed Sci Technol 7:3–14Google Scholar

Copyright information

© Springer-Verlag 1992

Authors and Affiliations

  • Harro J. Bouwmeester
    • 1
    • 2
  • Cees M. Karssen
    • 1
  1. 1.Department of Plant PhysiologyAgricultural UniversityWageningenThe Netherlands
  2. 2.Department of Vegetation Science, Plant Ecology and Weed ScienceAgricultural UniversityWageningenThe Netherlands

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