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: Senecio
Species Epithet: vulgaris
Species Author: L.
Life Form: ther.

Storage Behaviour

Storage Behaviour: Orthodox
Storage Conditions: 87% germination after 3 years storage (Hanelt, 1977); long-term storage under IPGRI preferred conditions at RBG Kew, WP. Oldest collection 2 years

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1000 Seed Weight

Average 1000 Seed Weight(g): 0.21
Details of Component Seed Weights:
  1. 0.23; (Hayashi, 1977); Seed; Based upon the average weight of 5 batches of 100 seeds; weight refers to air-dry seed.
  2. 0.16; (Salisbury, 1942); Seed; Seed mc not stated, but weight is likely to refer to air-dry seed.
  3. 0.185; (Fenner, 1983); Seed; Based upon the average weight of 100 air-dry seeds.
  4. 0.162; (Milberg et al., 2000); Seed; Based upon the average weight of 20 batches of a known quantity of air-dry seeds.
  5. 0.165; (Baker Seed Herbarium, California); Seed; Seed mc not stated, but weight is likely to refer to air-dry seed.
  6. 0.218; (Baker Seed Herbarium, California); Seed; Seed mc not stated, but weight is likely to refer to air-dry seed.
  7. 0.23; (Baker Seed Herbarium, California); Seed; Seed mc not stated, but weight is likely to refer to air-dry seed.
  8. 0.25; (Thompson et al., 1993); Fruit
  9. 0.25; (Grime et al., 1981); Germinule; Seed mc not stated, but weight is likely to refer to air-dry seed.
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Seed Dispersal

  1. Wind; Diaspore is blown by wind; Direct or experimental observation; (Ridley, 1930); Diaspore=achene. The seed has a pappus.
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Germination

  1. 95 % germination (seeds sown: 20); germination medium: 1% agar; germination conditions: light 8/16; 10°C; 14 days; (RBG Kew, Wakehurst Place)
  2. 54 % germination (seeds sown: 54); germination medium: 1% agar; germination conditions: light 8/16; 10°C; 63 days; (RBG Kew, Wakehurst Place)
  3. 100 % germination (seeds sown: 20); germination medium: 1% agar; germination conditions: light 8/16; 15°C; 7 days; (RBG Kew, Wakehurst Place)
  4. 85 % germination (seeds sown: 20); germination medium: 1% agar; germination conditions: light 8/16; 20°C; 7 days; (RBG Kew, Wakehurst Place)
  5. 100 % germination (seeds sown: 50); germination medium: 1% agar; germination conditions: light 12/12; 16°C; (RBG Kew, Wakehurst Place)
  6. 100 % germination (seeds sown: 20); germination medium: 1% agar; germination conditions: light 8/16; 25/10°C (Therm 8/16); 7 days; (RBG Kew, Wakehurst Place)
  7. 100 % germination (seeds sown: 20); germination medium: 1% agar; germination conditions: light 8/16; 20°C; 7 days; (RBG Kew, Wakehurst Place)
  8. 100 % germination (seeds sown: 20); germination medium: 1% agar; germination conditions: light 8/16; 15°C; 7 days; (RBG Kew, Wakehurst Place)
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Literature Cited
  1. Grime, J.P., Mason, G., Curtis, A.A., Rodman, J., Band, S.R., Mowforth, M.A.G., Neal, A.M. and Shaw, S. 1981. A comparative study of germination characteristics in a local flora. Journal of Ecology, 69:1017-1059.
  2. Hanelt, V.P. 1977. Biologische und systematische Aspekte der Lebensdauer von Samen. Biologische Rundschau, 15:81-91.
  3. Hayashi, I. 1977. Secondary succession of herbaceous communities in Japan. Japanese Journal of Ecology, 27:191-200.
  4. Thompson, K., Band, S.R. and Hodgson, J.G. 1993. Seed size and shape predict persistence in soil. Functional Ecology, 7:236-241.
  5. Salisbury, E.J. 1942. The Reproductive Capacity of Plants. G. Bell and Sons, London.
  6. Fenner, M. 1983. Relationships between seed weight, ash content and seedling growth in twenty-four species of Compositae. New Phytologist, 95:697-706.
  7. Milberg, P., Andersson, L. and Thompson, K. 2000. Large-seeded species are less dependent on light for germination than small-seeded ones. Seed Science Research, 10:99-104.
  8. RBG Kew, Wakehurst Place.
  9. Baker Seed Herbarium, California.
  10. Ridley, H.N. 1930. The Dispersal of Plants Throughout the World. William Clowes and Sons Ltd., London.
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