Why are the seeds of this species difficult? The seeds may have physiological dormancy, which can be overcome by mimicking the seasonal patterns of the species' native habitat.
Eleusine coracana (Image: S. Wood, RBG Kew)
This species has Orthodox seeds - dry to 15-20% eRH and store at -20ºC, or as cool as possible.
Germinate on agar, germination paper or sand at 20ºC, or under an alternating temperature regime of 30/20ºC.
The seeds of this species may be Physiologically Dormant (based on other species in the same genus). If germination is low, this type of seed dormancy can be overcome by mimicking the seasonal patterns of the species' native habitat. Use a moist pre-chill or pre-heat treatment (depending on local climatic conditions) or a dry after-ripening treatment, before germinating the seeds on agar, germination paper or sand at their optimum temperature. If this does not work, you can perform delicate surgery to enable the embryo to grow. Excise the tissue near the root tip.
(Image: S. Wood, RBG Kew)
See more images of this species at the Digital Atlas of Economic Plants.
Accepted name: Eleusine coracana (L.) Gaertn.
Synonyms: Eleusine pilosa Gilli, Eleusine tocussa Fresen. fide Fl. Ethiopia Eritrea, Cynosurus coracanus L.
Common name: finger millet
References and Links
- Food and Agriculture Organization of the United Nations and International Plant Genetic Resources Institute (1994). Genebank Standards. FAO/IPGRI, Rome, Italy.
- International Seed Testing Association (2010). International Rules for Seed Testing: edition 2010. ISTA, Bassersdorf, Switzerland.
- Rao, N.K., Hanson, J., Dulloo, M.E., Ghosh, K., Nowell, D. and Larinde, M. (2006). Manual of seed handling in genebanks. Handbooks for Genebanks No. 8. Bioversity International, 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: Eleusine coracana.
- PROTAbase (Plant Resources of Tropical Africa) - Wageningen, Netherlands: Eleusine coracana.
- SID (Seed Information Database) - Royal Botanic Gardens, Kew, UK: Eleusine coracana.
- Tropicos - Missouri Botanical Garden, USA: Eleusine coracana.