Seed Information Database

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Storage Behaviour  1000 Seed Weight  Germination  Literature Cited

APG Clade: EUDICOTS - CORE EUDICOTS - ROSIDS - EUROSIDS II
APG Order: Myrtales
APG Family: ONAGRACEAE
Kew Family: ONAGRACEAE
Genus: Ludwigia
Species Epithet: octovalvis
Species Author: (Jacq.) P.H.Raven
Life Form: nanophan.


Storage Behaviour

Storage Behaviour: Orthodox
Storage Conditions: Long-term storage under IPGRI preferred conditions at RBG Kew, WP. Oldest collection 15 years; average germination change 100 to 87.5%, mean storage period 14 years, 2 collections

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1000 Seed Weight

Average 1000 Seed Weight(g): 0.1
Details of Component Seed Weights:
  1. 0.0368; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  2. 0.0396; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  3. 0.054; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  4. 0.0552; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  5. 0.0632; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  6. 0.0648; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  7. 0.0654; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  8. 0.0656; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  9. 0.0664; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  10. 0.07476; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  11. 0.0812; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  12. 0.0956; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  13. 0.1004; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  14. 0.2287356; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  15. 0.07; (Clifford, 2000); Seed
  16. 0.1; (Clifford, 2000); Seed
  17. 0.45; (Grubb et al., 1998); Seed; oven dry
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Germination

  1. 69 % germination (seeds sown: 16); germination medium: 1% agar; germination conditions: light 8/16; 25/10C (Therm 8/16); 35 days; (RBG Kew, Wakehurst Place)
  2. 89 % germination (seeds sown: 19); germination medium: 1% agar; germination conditions: light 8/16; 35/20C (Therm 8/16); 35 days; (RBG Kew, Wakehurst Place)
  3. 95 % germination (seeds sown: 20); germination medium: 1% agar; germination conditions: light 8/16; 25/10C (Therm 8/16); 35 days; (RBG Kew, Wakehurst Place)
  4. 100 % germination (seeds sown: 19); germination medium: 1% agar; germination conditions: light 8/16; 35/20C (Therm 8/16); 21 days; (RBG Kew, Wakehurst Place)
  5. 94 % germination (seeds sown: 17); germination medium: 1% agar; germination conditions: light 8/16; 25/10C (Therm 8/16); 35 days; (RBG Kew, Wakehurst Place)
  6. 100 % germination (seeds sown: 18); germination medium: 1% agar; germination conditions: light 8/16; 35/20C (Therm 8/16); 35 days; (RBG Kew, Wakehurst Place)
  7. 100 % germination (seeds sown: 20); germination medium: 1% agar; germination conditions: light 12/12; 26/11C (Therm 12/12); (RBG Kew, Wakehurst Place)
  8. 100 % germination (seeds sown: 100); germination medium: 1% agar; germination conditions: light 12/12; 26/11C (Therm 12/12); (RBG Kew, Wakehurst Place)
  9. 100 % germination (seeds sown: 100); germination medium: 1% agar; germination conditions: light 12/12; 26/11C (Therm 12/12); (RBG Kew, Wakehurst Place)
  10. 54 % germination (seeds sown: 50); germination medium: 1% agar; germination conditions: light 8/16; 25C; 49 days; (RBG Kew, Wakehurst Place)
  11. 94 % germination (seeds sown: 50); germination medium: 1% agar; germination conditions: light 12/12; 21C; (RBG Kew, Wakehurst Place)
  12. 90 % germination (seeds sown: 20); germination medium: 1% agar; germination conditions: light 8/16; 25C; 35 days; (RBG Kew, Wakehurst Place)
  13. 62 % germination (seeds sown: 13); germination medium: 1% agar; germination conditions: light 8/16; 20C; 77 days; (RBG Kew, Wakehurst Place)
  14. 94 % germination (seeds sown: 17); germination medium: 1% agar; germination conditions: light 8/16; 20C; 35 days; (RBG Kew, Wakehurst Place)
  15. 75 % germination (seeds sown: 16); germination medium: 1% agar; germination conditions: light 8/16; 25C; 35 days; (RBG Kew, Wakehurst Place)
  16. 100 % germination (seeds sown: 17); germination medium: 1% agar; germination conditions: light 8/16; 20C; 35 days; (RBG Kew, Wakehurst Place)
  17. 100 % germination (seeds sown: 20); germination medium: 1% agar; germination conditions: light 8/16; 25C; 28 days; (RBG Kew, Wakehurst Place)
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Literature Cited
  1. RBG Kew, Wakehurst Place.
  2. Clifford, H.T. 2000. Dicotyledon seedling morphology as a correlate of seed size. Proceedings of the Royal Society of Queensland, 109:39-48.
  3. Grubb, P.J., Metcalfe, D.J., Grubb, E.A.A. and Jones, G.D. 1998. Nitrogen-Richness and Protection of Seeds in Australian Tropical Rainforest: A Test of Plant Defence Theory. Oikos, 82:467-482.
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