David M' Brenner Curator North Central Regional Plant Introduction Station

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David M. BrennerCuratorNorth Central Regional
Plant Introduction Station

• Dealing with Dormant Seeds

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Some Dormancy Syndromes

• Winter dormant cool-moist
• Hard seeds scarification
• Summer dormant warm moist
• Fire fire or smoke
• What are the germination and seed maturity
  seasons in nature?

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Chaerophyllum procumbens Baskin, et al. 2004. J.
Torrey Bot. Soc. 131126-139
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Selected Seed Dormancy Breaking References

• Baskin, C.C., T.S. Hawkins, and J.M. Baskin.
  2004. Ecological life cycle of Chaerophyllum
  procumbens variety shortii (Apiaceae), a winter
  annual of the North American Eastern Deciduous
  Forest. Journal of the Torrey Botanical Society
  131126-139.
• http//www.24hourscholar.com/p/articles/mi_qa4017
  /is_200404/ai_n9363768
• Deno, N.C. 1993-1998. Seed germination theory
  and practice (and supplements). Privately
  published from 139 Lenor Drive, State College PA
  16801
• http//www.theseedsite.co.uk/normdeno.html
• Ellis, R.H., T.D. Hong, and E.H. Roberts. 1985.
  Handbook of seed technology for genebanks.
  International Board for Plant Genetic Resources.
  Rome
• http//www.apd.rdg.ac.uk/Agriculture/Staff/RHE/ha
  ndbook.htm
• Smokemaster (A product that simulates the
  germination inducing effects of smoke)
• http//www.tecnica.com.au/regen20smokemaster.htm
  l
• I (David Brenner) have not used this or the burn
  methods.

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Some Dormancy Syndromes

• Winter dormant cool-moist
• Hard seeds scarification
• Summer dormant warm moist
• Fire fire or smoke
• What are the germination and seed maturity
  seasons in nature?

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Seed Jars