Seed Information Database

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Storage Behaviour  1000 Seed Weight  Seed Dispersal  Germination  Literature Cited

APG Clade: EUDICOTS - CORE EUDICOTS - ASTERIDS - EUASTERIDS II
APG Order: Asterales
APG Family: ASTERACEAE
Kew Family: COMPOSITAE
Genus: Dahlia
Species Epithet: coccinea
Species Author: Cav.

Storage Behaviour

Storage Behaviour: Orthodox
Storage Conditions: 100 % viability following drying to mc's in equilibrium with 15 % RH and freezing for 92 days at -20°C at RBG Kew, WP

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1000 Seed Weight

Average 1000 Seed Weight(g): 5.4934
Details of Component Seed Weights:
  1. 5.0836; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  2. 5.9032; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
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Seed Dispersal

  1. Unassisted; Seeds drop to the ground close to or beneath the parent plant; Direct or experimental observation; (Vazquez & Givnish, 1998)
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Germination

  1. 100 % germination (seeds sown: 47); germination medium: 1% agar; germination conditions: light 8/16; 15°C; 77 days; (RBG Kew, Wakehurst Place)
  2. 57 % germination (seeds sown: 46); germination medium: 1% agar; germination conditions: light 8/16; 25/10°C (Therm 8/16); 133 days; (RBG Kew, Wakehurst Place)
  3. 100 % germination (seeds sown: 50); germination medium: 1% agar; germination conditions: light 8/16; 15°C; 28 days; (RBG Kew, Wakehurst Place)
  4. 100 % germination (seeds sown: 50); germination medium: 1% agar; germination conditions: light 8/16; 20°C; 28 days; (RBG Kew, Wakehurst Place)
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Literature Cited
  1. RBG Kew, Wakehurst Place.
  2. Vazquez, J.A. and Givnish, T.J. 1998. Altitudinal gradients in tropical forest composition, structure, and diversity in the Sierra de Manantlan. Journal of Ecology, 86:999-1020.
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