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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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Growth regulators and storage temperature govern germination of Coreopsis seed

Author(s): W. J. Carpenter and E. R. Ostmark

Month: Nov
Year: 1992

Publication Type: Article
Journal: Hortscience
Journal Link:
Volume: 27
Issue: 11
Pages: 1190-1193

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

Species Referenced: Coreopsis lanceolata (Lanceleaf coreopsis),


Evaluates storage and germination environments of Coreopsis lanceolata. Highest total germination and most rapid and uniform germination of seed occurred at constant 15C. Recently harvested seeds had 44% total germination. Plant growth regulators (giberellic acid, ethephon, or kinetin) increased germination and reduced the number of germination days by 50%. Storing fresh seeds for greater than 6 months also increased total germination (seeds stored at 5C and 10% to 20% relative humidity (RH), or 15C at 20% to 35% RH). Higher seed storage temperatures led to increases in the time it took to reach total germination.

Suggested Citation

W. J. Carpenter and E. R. Ostmark. "Growth regulators and storage temperature govern germination of Coreopsis seed." Hortscience 27.11 (1992): 1190-1193.

Article Links

ISSN: 0018-5345

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