Why are the seeds of this species difficult? The seeds have physical dormancy, which can be overcome by scarifying the seed coat to allow water uptake and encourage germination.
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This species has Orthodox seeds - dry to 15-20% eRH and store at -20ºC, or as cool as possible.
The seeds of this species are Physically Dormant.
Chip the seed coat with a scalpel before sowing on agar, germination paper or sand. Germinate at 15 or 20ºC (depending on local climatic conditions).
See images of this species at the Digital Atlas of Economic Plants.
Accepted name: Dodonaea viscosa Jacq.
Synonyms: Dodonaea senegalensis Blume
Common name: hopbush
References and Links
- Baskin, C.C. and Baskin J.M. (1998). Seeds: ecology, biogeography, and evolution of dormancy and germination. Academic Press, USA.
- Food and Agriculture Organization of the United Nations and International Plant Genetic Resources Institute (1994). Genebank Standards. FAO/IPGRI, Rome, Italy.
- AFPD (African Flowering Plants Database) - Conservatoire et Jardin Botaniques de la Ville de Genève, Switzerland, and South African National Biodiversity Institute, Pretoria, RSA: Dodonaea viscosa.
- PROTAbase (Plant Resources of Tropical Africa) - Wageningen, Netherlands: Dodonaea viscosa.
- SID (Seed Information Database) - Royal Botanic Gardens, Kew, UK: Dodonaea viscosa.
- Tropicos - Missouri Botanical Garden, USA: Dodonaea viscosa.
- Kew Species Profile: Dodonaea viscosa