Seed Information Database

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Storage Behaviour  1000 Seed Weight  Oil Content  Protein Content  Germination  Morphology  Literature Cited

APG Clade: EUDICOTS - CORE EUDICOTS - ROSIDS - EUROSIDS I
APG Order: Malpighiales
APG Family: EUPHORBIACEAE
Kew Family: EUPHORBIACEAE
Genus: Jatropha
Species Epithet: curcas
Species Author: L.
Life Form: nanophan. or phan.


Storage Behaviour

Storage Behaviour: Orthodox
Storage Conditions: 90% viability following drying to mc's in equilibrium with 15% RH and freezing for 2 months at -20°C at RBG Kew, WP

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1000 Seed Weight

Average 1000 Seed Weight(g): 551
Details of Component Seed Weights:
  1. 421.94; (FAO, 1975); Seed; Seed mc not stated, but weight is likely to refer to air-dry seed.
  2. 421.9; (von Carlowitz, 1991); Seed; Seed mc not stated, but weight is likely to refer to air-dry seed.
  3. 430.3; (Barclay & Earle, 1974); Seed; Seed mc not stated, but weight is likely to refer to air-dry seed.
  4. 430; (Kleiman et al., 1965); Seed; Seed mc not stated, but weight is likely to refer to air-dry seed.
  5. 588; (Msanga, 1998); Seed; Seed mc not stated, but weight is likely to refer to air-dry seed.
  6. 661.4428; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  7. 726.4768; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  8. 520.636; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  9. 578.2; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  10. 649.88; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  11. 630.9340659; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
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Germination

  1. 95 % germination (seeds sown: 20); germination medium: moist sand; germination conditions: light 8/16; 25°C; 42 days; (RBG Kew, Wakehurst Place)
  2. 90 % germination (seeds sown: 20); germination medium: 1% agar; germination conditions: light 8/16; 25°C; 42 days; (RBG Kew, Wakehurst Place)
  3. 100 % germination (seeds sown: 10); germination medium: moist sand; germination conditions: light 8/16; 25°C; 14 days; (RBG Kew, Wakehurst Place)
  4. 100 % germination (seeds sown: 10); germination medium: 1% agar; germination conditions: light 8/16; 25°C; 7 days; (RBG Kew, Wakehurst Place)
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Oil Content

Average of Oil Content (%): 31.05
Details of Component Oil Contents:
  1. 31.1; (Barclay & Earle, 1974); Entire seed/nut; Moisture content not stated
  2. 31.0; (Kleiman et al., 1965); Entire seed/nut; Moisture content not stated
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Protein Content

Average of Protein Content (%): 18.8
Details of Component Protein Contents:
  1. 19.0; (Kleiman et al., 1965); Entire seed/nut; Moisture content not stated
  2. 18.6; (Barclay & Earle, 1974); Entire seed/nut; Moisture content not stated
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Seed Morphology

(RBG Kew, Wakehurst Place.)

Fruit:

Fruit type: coccarium
Diaspore: seed
Mechanical protection of seed: seed coat
Fruit dehiscent: Yes

Seed:


Seed size length (mm): 20.0
Seed size width (mm): 12.0
Seed size height (mm): 9.0
Seed colour: black
Seed shape: ovoid, subtrigonous in transverse section
Sarcotesta: absent
Seed appendages: caruncula
Seed surface: smooth with fine pits
Raphe: present
Hilum: small
Other specialised structures: none

Internal Morphology:


Seed configuration: anatropous
Embryo type: axial-spatulate
Relative size embryo: quarter (1/4 plus)
Endosperm ruminate: No
Embryo colour: white


Literature Cited
  1. FAO. 1975. Forest Tree Seed Directory. Rome, Food and Agriculture Organisation of the United Nations.
  2. von Carlowitz, P.G. 1991. Multipurpose trees and shrubs: sources of seeds and inoculants. ICRAF, Nairobi. USDA 25.
  3. Barclay, A.S. and Earle, F.R. 1974. Chemical analyses of seeds III: oil and protein content of 1253 species. Economic Botany, 28:178-236.
  4. Kleiman, R., Smith, C.R. and Yates, S.G. 1965. Search for new industrial oils. XII. Fifty-eight Euphorbiaceae oils, including one rich in Vernolic acid. Journal of the American Oil Chemists’ Society, 42:169-172.
  5. RBG Kew, Wakehurst Place.
  6. Msanga, H.P. 1998. Seed Germination of Indigenous Trees in Tanzania. Northern Forestry Centre, Canadian Forest Service.
  7. RBG Kew, Wakehurst Place; material provided by National Gene Bank of Kenya.
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