Seed Information Database

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Storage Behaviour  1000 Seed Weight  Germination  Literature Cited

APG Clade: EUDICOTS - CORE EUDICOTS - ASTERIDS - EUASTERIDS II
APG Order: Asterales
APG Family: ASTERACEAE
Kew Family: COMPOSITAE
Genus: Galinsoga
Species Epithet: quadriradiata
Species Author: Ruiz & Pav.
Life Form: ther.


Storage Behaviour

Storage Behaviour: Orthodox?
Storage Conditions: The species has been shown to form a short-term persistent soil seed bank, with seeds surviving in the soil for >1 year, but <5 years (Thompson et al., 1997). Unfortunately maximum longevity of the seeds in the soil was not stated in the available data. As such, although it is likely that the taxon exhibits orthodox storage behaviour, the possibility that its seeds survive for <2 years in the soil and may be intermediate or recalcitrant cannot be entirely ruled out.

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1000 Seed Weight

Average 1000 Seed Weight(g): 0.2484
Details of Component Seed Weights:
  1. 0.2652; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  2. 0.2136; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  3. 0.2664; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
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Germination

  1. 100 % germination (seeds sown: 19); ; germination medium: 1% agar; germination conditions: light 12/12; 16C; ; (RBG Kew, Wakehurst Place)
  2. 95 % germination (seeds sown: 20); ; germination medium: 1% agar; germination conditions: light 8/16; 15C; 42 days; ; (RBG Kew, Wakehurst Place)
  3. 100 % germination (seeds sown: 25); ; germination medium: 1% agar; germination conditions: light 8/16; 20C; 7 days; ; (RBG Kew, Wakehurst Place)
  4. 89 % germination (seeds sown: 19); ; germination medium: 1% agar; germination conditions: light 8/16; 10C; 56 days; ; (RBG Kew, Wakehurst Place)
  5. 100 % germination (seeds sown: 25); ; germination medium: 1% agar; germination conditions: light 8/16; 15C; 7 days; ; (RBG Kew, Wakehurst Place)
  6. 100 % germination (seeds sown: 20); ; germination medium: 1% agar; germination conditions: light 8/16; 20C; 7 days; ; (RBG Kew, Wakehurst Place)
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Literature Cited
  1. Thompson, K., Bakker, J.P. and Bekker, R.M. 1997. The Soil Seed Banks of North West Europe: Methodology, density and Longevity. Cambridge University Press, Cambridge.
  2. RBG Kew, Wakehurst Place.
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