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The Research Literature database was created and funded by the Florida Wildflower Foundation. Use the search features below to find scientific articles on native wildflowers that are commercially available or used in restoration projects.

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Assessing viability of prevariety germplasm of native Coreopsis species

Author(s): J. G. Norcini and J. H. Aldrich

Month: Oct
Year: 2008

Publication Type: Article
Journal: Hortscience
Journal Link:
Volume: 43
Issue: 6
Pages: 1870-1881

Article Topic(s): Germination, Seed storage
Research Setting(s): Laboratory

Species Referenced: Coreopsis basalis (Goldenmane tickseed), Coreopsis lanceolata (Lanceleaf coreopsis),


Evaluates the efficacy of tetrazolium (TZ) testing to determine the viability of seeds of four Coreopsis species. Using the TZ test, viable seeds were identified when embryos were turgid, appeared normal, and were stained pink, red, or were pure white with a pink to red radicle tip. However, Results of pre- or post-germination TZ tests were not consistently accurate or uniform across all species and seed lots. The article concludes that the most precise, uniform method of assessing viability was the excised embryo germination test.

Suggested Citation

J. G. Norcini and J. H. Aldrich. "Assessing viability of prevariety germplasm of native Coreopsis species." Hortscience 43.6 (2008): 1870-1881.

Article Links

ISSN: 0018-5345

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