Why are the seeds of this species difficult? The seeds may have physical dormancy, which would have to be overcome before they will germinate. The seeds can be scarified so that they imbibe water.
Corchorus olitorius (Image: L. Robb, RBG Kew)
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 likely to be Physically Dormant (inferred from available information on germination and of characteristics of seeds in this family).
Chip the seed coat with a scalpel before sowing. Germinate on agar, germination paper or sand at 30ºC.
Corchorus olitorius showing embryo
(Image: L. Robb, RBG Kew)
Accepted name: Corchorus olitorius L.
Common name: nalta jute, Jew's mallow
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.
- International Seed Testing Association (2010). International Rules for Seed Testing: edition 2010. ISTA, Bassersdorf, Switzerland.
- AFPD (African Flowering Plants Database) - Conservatoire et Jardin Botaniques de la Ville de Genève, Switzerland, and South African National Biodiversity Institute, Pretoria, RSA: Corchorus olitorius.
- AVRDC - The World Vegetable Centre, Taiwan: fact sheet on Corchorus olitorius.
- PROTAbase (Plant Resources of Tropical Africa) - Wageningen, Netherlands: Corchorus olitorius.
- SID (Seed Information Database) - Royal Botanic Gardens, Kew, UK: Corchorus olitorius.
- Tropicos - Missouri Botanical Garden, USA: Corchorus olitorius.