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

APG Clade: EUDICOTS - CORE EUDICOTS - ASTERIDS - EUASTERIDS I
APG Order: Solanales
APG Family: SOLANACEAE
Kew Family: SOLANACEAE
Genus: Nicotiana
Species Epithet: tabacum
Species Author: L.
Common Name: tobacco
Life Form: ther.


Storage Behaviour

Storage Behaviour: Orthodox
Storage Conditions: 92% germination following 20 years hermetic storage at room temperature (Harrington, 1972); seeds not damaged from exposure to liquid nitrogen (Stanwood & Bass, 1981); >90% germination after 4 years hermetic storage at ambient temperatures with 2-3% mc, whereas great loss in viability during this time with 5-6% mc (Bangarayya et al., 1981); p50= 10.3 years for seeds stored under open storage in a temperate climate(Priestley, 1986); long-term storage under IPGRI preferred conditions at RBG Kew, WP. Oldest collection 19 years; average germination change 98 to 100%, mean storage period 13 years, 3 collections

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1000 Seed Weight

Average 1000 Seed Weight(g): 0.07
Details of Component Seed Weights:
  1. 0.0768; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  2. 0.0856; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  3. 0.0824; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  4. 0.0816; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  5. 0.0436; (RBG Kew, Wakehurst Place); Seed; *Seed weights reported may include minor covering structures
  6. 0.07; (Felfoldi, 1980); Seed; Seed mc not stated, but weight is likely to refer to air-dry seed.
  7. 0.08; (Felfoldi, 1980); Seed; Seed mc not stated, but weight is likely to refer to air-dry seed.
  8. 0.01; (Barclay & Earle, 1974); Seed; Seed mc not stated, but weight is likely to refer to air-dry seed.
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Germination

  1. 98 % germination (seeds sown: 50); germination medium: 1% agar; germination conditions: light 12/12; 26C; (RBG Kew, Wakehurst Place)
  2. 89 % germination (seeds sown: 100); germination medium: 1% agar; germination conditions: light 12/12; 21C; (RBG Kew, Wakehurst Place)
  3. 100 % germination (seeds sown: 100); germination medium: 1% agar; germination conditions: light 12/12; 21C; (RBG Kew, Wakehurst Place)
  4. 96 % germination (seeds sown: 100); germination medium: 1% agar; germination conditions: light 12/12; 21C; (RBG Kew, Wakehurst Place)
  5. 74 % germination (seeds sown: 100); germination medium: 1% agar; germination conditions: light 12/12; 21C; (RBG Kew, Wakehurst Place)
  6. 100 % germination (seeds sown: 50); germination medium: 1% agar; germination conditions: light 12/12; 21C; (RBG Kew, Wakehurst Place)
  7. 100 % germination (seeds sown: 50); germination medium: 1% agar; germination conditions: light 12/12; 21C; (RBG Kew, Wakehurst Place)
  8. 100 % germination (seeds sown: 50); germination medium: 1% agar; germination conditions: light 12/12; 21C; (RBG Kew, Wakehurst Place)
  9. 100 % germination (seeds sown: 50); germination medium: 1% agar; germination conditions: light 12/12; 21C; (RBG Kew, Wakehurst Place)
  10. 100 % germination (seeds sown: 50); germination medium: 1% agar; germination conditions: light 12/12; 21C; (RBG Kew, Wakehurst Place)
  11. 100 % germination (seeds sown: 50); germination medium: 1% agar; germination conditions: light 12/12; 21C; (RBG Kew, Wakehurst Place)
  12. 100 % germination (seeds sown: 50); germination medium: 1% agar; germination conditions: light 12/12; 21C; (RBG Kew, Wakehurst Place)
  13. 100 % germination (seeds sown: 50); germination medium: 1% agar; germination conditions: light 12/12; 21C; (RBG Kew, Wakehurst Place)
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Oil Content

Average of Oil Content (%): 38.1
Details of Component Oil Contents:
  1. 45.4; (Barclay & Earle, 1974); Entire seed/nut; Moisture content not stated
  2. 33.5; (Vaughan, 1970); Entire seed/nut; Moisture content not stated; Mid-point of the range 33-34
  3. 36.5; (Padley et al., 1994); Entire seed/nut; Moisture content not stated; Mid-point of the range 30-43
  4. 37.0; (Eckey, 1954); Entire seed/nut; Moisture content not stated; Mid-point of the range 33-41
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Protein Content

Average of Protein Content (%): 22.4
Details of Component Protein Contents:
  1. 22.4; (Barclay & Earle, 1974); Entire seed/nut; Moisture content not stated
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Literature Cited
  1. Bangarayya, M., Babu, D.P., and Rao, M. 1981. Effect of seed moisture content at the time of storage on the viability of Virginia flue-cured tobacco varietes. In IV National Symposium on Tobacco 19-22 January 1981, Rajahmundry, India. Abstracts of papers. Indian Society of Tobacco Science (1981) 70. (Seed Abstracts 1983, 6 (2) No 70).
  2. Harrington, J.F. 1972. Seed storage and longevity. In Seed Biology, Volume III. (Ed. by T.T. Kozlowski). Academic Press, New York & London.
  3. Priestley, D.A. 1986. Seed Aging. Cornell University Press.
  4. Stanwood, P.C. and Bass, L.N. 1981. Seed germplasm preservation using liquid nitrogen. Seed Science and Technology, 9:423-437.
  5. Felfoldi, E. 1980. Seed Counts (Numbers of Seeds Per Unit Weight). Technical Report Series, 32. Government of Victoria, Department of Agriculture.
  6. 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.
  7. RBG Kew, Wakehurst Place.
  8. Eckey, E.W. 1954. Vegetable fats and oils. American Chemical Society Monograph Series no. 123. Reinhold Publishing Corporation, New York.
  9. Padley, F.B., Gunstone, F.D. and Harwood, J.L. 1994. Occurrence and characteristics of oils and fats. In: The Lipid Handbook (2nd Edn.). (Ed. by F.D.Gunstone, J.L. Harwood and F.B. Padley), pp. 47-146.
  10. Vaughan, J.G. 1970. The Structure and Utilisation of Oil Seeds. Chapman and Hall Ltd., London.
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