Seed Information Database

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Storage Behaviour  1000 Seed Weight  Seed Dispersal  Germination  Salt Tolerance  Literature Cited

APG Clade: EUDICOTS - CORE EUDICOTS - ASTERIDS - EUASTERIDS I
APG Order: Gentianales
APG Family: APOCYNACEAE
Kew Family: ASCLEPIADACEAE
Genus: Calotropis
Species Epithet: procera
Species Author: (Ait.) Ait.f.
Life Form: nanophan.

Storage Behaviour

Storage Behaviour: Orthodox
Storage Conditions: Long-term storage under IPGRI preferred conditions at RBG Kew, WP. Oldest collection 22 years; germination change 100 to 90%, 13 years, 1 collection

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1000 Seed Weight

Average 1000 Seed Weight(g): 10.14
Details of Component Seed Weights:
  1. 2.812; (Mazer, 1989); Seed
  2. 9.075; (Mazer, 1989); Seed
  3. 23.237; (Jurado et al., 1991); Diaspore; Weight is based upon the average of 20 individual diaspore masses; diaspores were dried at 80°C for 24 hours prior to weighing.
  4. 11.08; (RBG Kew, Wakehurst Place); Seed
  5. 8.34; (RBG Kew, Wakehurst Place); Seed
  6. 10.86; (RBG Kew, Wakehurst Place); Seed
  7. 9.72; (RBG Kew, Wakehurst Place); Seed
  8. 8.01; (RBG Kew, Wakehurst Place); Seed
  9. 8.09; (RBG Kew, Wakehurst Place); Seed
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Seed Dispersal

  1. Wind; Diaspore is blown by wind; Method not stated; (Sen, 1982); Diaspore=seed. The seed is plumed.
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Germination

  1. 80 % germination; germination medium = 1 % Agar; germination conditions = 26 °C, 12/12; (RBG Kew, Wakehurst Place)
  2. 100 % germination; germination medium = 1 % Agar; germination conditions = 31 °C, 12/12; (RBG Kew, Wakehurst Place)
  3. 94 % germination; germination medium = 1 % Agar; germination conditions = 31 °C, 12/12; (RBG Kew, Wakehurst Place)
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Salt Tolerance

  1. Plant Type: xero; Max dS/m: 8; Photosynthetic Pathway: C3?
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Literature Cited
  1. Mazer, S. 1989. Ecological, taxonomic, and life history correlates of seed mass among Indiana dunes Angiosperms. Supplement: species list, untransformed seed mass, seed mass class and ecological data associated with each species. Ecological Monographs, 59.
  2. Jurado, E., Westoby, M. and Nelson, D. 1991. Diaspore weight, dispersal, growth form and perenniality of central Australian plants. Journal of Ecology, 79:811-830.
  3. Sen, D.N. 1982. Environment and Plant Life in Indian Desert. Geobios International, Jodhpur, India.
  4. RBG Kew, Wakehurst Place.
  5. Aronson, J.A., 1982a. Halophytes of Central America and the Caribbean Region, R and D Authority, Ben Gurion University of the Negev.Report No BGUN - ARI - 9 - 82 Beer - Sheva, Israel.
  6. Aronson, J.A., 1982b. Preliminary report on halophyte and desert plant collection in Northwest India: March - April, 1982. R and D Authority, Ben Gurion University of the Negev. Beer - Sheva, Israel.
  7. Aronson, J.A., sine anno. Halophytes - new crops for deserts and coastal areas. Rome: FAO, CERES. Unpublished manuscript.
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