Seed Information Database

Search Results

Storage Behaviour  1000 Seed Weight  Germination  Salt Tolerance  Literature Cited

APG Clade: EUDICOTS - CORE EUDICOTS - ASTERIDS - EUASTERIDS I
APG Order: Solanales
APG Family: CONVOLVULACEAE
Kew Family: CONVOLVULACEAE
Genus: Calystegia
Species Epithet: sepium
Species Author: (L.) R.Br.
Life Form: hemicr.

Storage Behaviour

Storage Behaviour: Orthodox
Storage Conditions: 100 % viability following drying to mc's in equilibrium with 15 % RH and freezing for 1 month at -20°C at RBG Kew, WP; The species has been shown to form a long-term persistent soil seed bank, with seeds surviving in the soil for 10 years or longer in at least one investigation (maximum longevity >39 years; Thompson et al., 1997). Survival in ambient conditions for this period of time satisfies the criteria for orthodox behaviour.

Top  Interpreting the storage behaviour data

1000 Seed Weight

Average 1000 Seed Weight(g): 28.2
Details of Component Seed Weights:
  1. 21.055; (Baker Seed Herbarium, California); Seed; Seed mc not stated, but weight is likely to refer to air-dry seed.
  2. 30.0; (Baker Seed Herbarium, California); Seed; Seed mc not stated, but weight is likely to refer to air-dry seed.
  3. 25.626; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  4. 38.0472; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  5. 29.6; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  6. 25.31112; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  7. 28.9884; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  8. 26.6073491; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
Top  Interpreting the seed weight data

Germination

  1. 96 % germination (seeds sown: 54); pre-sowing treatments: scarification (seed coat partially removed with scalpel. seed coat chipped); germination medium: 1% agar; germination conditions: light 8/16; 15°C; 14 days; (RBG Kew, Wakehurst Place)
  2. 100 % germination (seeds sown: 20); pre-sowing treatments: scarification (seed coat partially removed with scalpel. seed coat chipped); germination medium: 1% agar; germination conditions: light 8/16; 15°C; 7 days; (RBG Kew, Wakehurst Place)
  3. 100 % germination (seeds sown: 20); pre-sowing treatments: scarification (seed coat partially removed with scalpel. seed coat chipped); germination medium: 1% agar; germination conditions: light 8/16; 20°C; 7 days; (RBG Kew, Wakehurst Place)
  4. 95 % germination (seeds sown: 20); pre-sowing treatments: scarification (seed coat partially removed with scalpel. seed coat chipped); germination medium: 1% agar; germination conditions: light 8/16; 25°C; 7 days; (RBG Kew, Wakehurst Place)
  5. 100 % germination (seeds sown: 10); pre-sowing treatments: scarification (seed coat partially removed with scalpel. seed coat chipped); germination medium: 1% agar; germination conditions: light 12/12; 16°C; (RBG Kew, Wakehurst Place)
Top  Interpreting the germination data

Salt Tolerance

  1. Plant Type: psamm; Photosynthetic Pathway: C3?
Top  Interpreting the salt tolerance data

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.
  3. Baker Seed Herbarium, California.
  4. Barbour, M.G. and Dejong, T.M. 1977. Response of West Coast beach taxa - salt spray, seawater inundation and soil salinity. Bulletin Torrey Botanical Club, 104:29-34.
Top

Back to search | Interpreting this page