domestication potentials of sea kale (crambe maritima l.) · • experimental methods • results...
TRANSCRIPT
DanSeed Symposium 2014 | March 11th
Dias 1Jonas Christensen
Jonas Christensen, Cand. [email protected] of Copenhagen
Domestication potentials of sea kale (Crambe maritima L.)- Seed germination
Jonas Christensen
DanSeed Symposium 2014 | March 11thDias 2
Presentation outline
• Introduction
• Introductory experiments
• Experimental methods
• Results
• Conclusions and perspectives
Jonas Christensen
DanSeed Symposium 2014 | March 11thDias 3
Introduction
• Demand for quality & niche products• Locally grown foods• New Nordic Food Concept
• Sea kale (Crambe maritima L.)• Known from the Victorian Era• Forced shoots, flower shoots
Jonas Christensen
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• Geobotany and ecology• Plant morphology Roots Leaves Flowers and fruit set Seeds and dispersal
• Potential?• Wild domesticated?• Pericarp germination• Hypothesis Germ. highest 15-20oC
Introduction
Jonas Christensen
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Introductory experiments• Pericarp, seed weight?• Seed weight Pericarp: Without pericarp:
50% of data
Jonas Christensen
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• Pericarp• Pre-treatments at five different temperatures 10% NaOCl (+water control) and pericarp removal Gravel sand: 5, 10, 15, 20 and 25oC, 2.rep (n=12) Peat: 15oC, 2.rep (n=12)
Introductory experiments
Jonas Christensen
DanSeed Symposium 2014 | March 11thDias 7
Domestication potentials of seakale
Experimental methods
• Pericarp removal, sown in peat, 15oC• 10, 15 and 20oC, 4 replicates (n=50)• 10 h of light with 50µmol m-2s-1
• Measuring: started on day 5, 2-4d.• Germination, radicle ≥ 2 mm• Infection, mycelium-like structure
Blue: germinated seeds
Red: infected seeds
Jonas Christensen
DanSeed Symposium 2014 | March 11thDias 8
Results
Jonas Christensen
DanSeed Symposium 2014 | March 11thDias 9
Conclusions and perspectives
• Germination and infection• Plant propagation Seed germination Clonal propogation Use as a perennial plant
• Domestication and breeding perspectives Seed dormancy
Phenotypic characteristics
Two types of a crop
