Effect of Controlled Hydration on Germination of Tobacco Seeds

  • Published : 2003.09.01

Abstract

Controlled hydration treatment of tobacco seeds enhanced seed performance greatly without additional materials associated with conventional osmotic or solid matrix priming technique. The seeds were hydrated by adding water to a level from 10 to 60% by 5% increments and incubated for 8 days at $25^{\circ}C$. After the treatment, the seeds were dried to the original seed moisture content under $20^{\circ}C$ for 72 hours. The moisture content of tobacco seeds equivalent to 35% by the hydration treatment gave the greatest improvement in germination rate and speed compared to untreated or polyethylene glycol (PEG) primed seeds, especially at low temperature of $15^{\circ}C$.

Keywords

References

  1. Brockhurst, P. A. and Dearman, J. 1983a. Interactions between seed priming treatments and nine seed lots of carrot, celery and onion. I. Laboratory germination. Annals of Applied Biology 102: 577-584 https://doi.org/10.1111/j.1744-7348.1983.tb02729.x
  2. Brockhurst, P. A. and Dearman, J. 1983b. Interactions between seed priming treatments and nine seed lots of carrot, celery and onion. 2. Seedling emergence and plant growth. Annals of Applied Biology 102 : 585-593 https://doi.org/10.1111/j.1744-7348.1983.tb02730.x
  3. Buljalski, W., Nienow, A. W. and Gray, D. 1989. Establishing the large scale osmotic priming of onion seeds by using enriched air. Annals of Applied Biology 115 : 171-176 https://doi.org/10.1111/j.1744-7348.1989.tb06824.x
  4. Fujikura, Y, Krakk, H. L. Basra, A. S. and Karssen, C. M. 1993 Hydropriming, a simple and inexpensive priming method. Seed Sci. and Technol 21 : 639-642
  5. Gray, D., Rowse, H. R. and Drew, R. L. K. 1990. A comparison of two large-scale seed priming techniques. Ann. Appl. Biol. 116:611-615 https://doi.org/10.1111/j.1744-7348.1990.tb06644.x
  6. Heydecker, W., Higgings, J. and Gulliver, R. L. 1973. Accelerated germination by osmotic seed treatment. Nature 246 : 42 https://doi.org/10.1038/246042a0
  7. Min, T. G. and Seo, B. M. 1999. Optimum conditions for tobacco seed priming by PEG 6000. Korean J. Crop Sci. 44(3) : 263-266
  8. Min, T. G. 2001. Priming effects on germination of aged tobacco seeds. Korean J. Crop Sci. 46(4): 325-327
  9. Rowse, H. R. 1996. Drum priming-A non-osmotic method of priming seeds. Seed Sci. and Technol. 24 : 281-294
  10. Taylor, A. G., Klen, D. E. and Whitlow, T. H. 1988. SMP: Solid matrix priming of seed. Hort Sci. 37 : 1-11 https://doi.org/10.1016/0304-4238(88)90146-X
  11. Taylor, A. G. 1997. Seed storage, germination and quality. In: The Physiology of Vegetable Crops, Wien, H. C. (ed). University Press, Cambridge, UK. pp. 1-36
  12. Taylor, A. G., Allen, P. S. Bennett, M. A. Bradford, K. J. Burris, J. S. and Misra, M. K. 1998. Seed enhancements. Seed Sci Reserch. 8 : 245-256
  13. Warren, J. B. and Bennet, M. A. 1997. Seed hydration using the drum priming system. Hort Sci. 32(7): 1220-1221