biologia plantarum

International journal on Plant Life established by Bohumil Němec in 1959

Biologia plantarum 45:617-619, 2002 | DOI: 10.1023/A:1022352012012

Alleviation of Salinity-Induced Dormancy in Perennial Grasses

S. Gulzar1, M.A. Khan1
1 Department of Botany, University of Karachi, Karachi, Pakistan

All seeds of Aeluropus lagopoides and Urochondra setulosa germinated under non-saline conditions except for Sporobolus ioclados which showed only 40 % germination. Increase in salinity substantially inhibited germination and few seeds germinated at 400 mM NaCl. Germination at 200 mM NaCl was alleviated in U. setulosa by the application of gibberellic acid and fusicoccin, in A. lagopoides by thiourea, betaine, kinetin, fusicoccin and ethephon, and in S. ioclados by gibberellin and ethephon. High salinity (400 mM NaCl) induced germination inhibition was alleviated by proline, kinetin, fusicoccin and ethephon only in A. lagopoides.

Keywords: Aeluropus lagopoides; betaine; ethephon; fusicoccin; halophytic grasses; kinetin; nitrate; proline; Sporobolus ioclados; thiourea; Urochondra setulosa
Subjects: Aeluropus lagopoides; alleviation of stress effects; betaine, salinity-induced dormancy; cytokinins; dormancy; fusicoccin; gibberelins; halophytic grasses; proline; salt stress, dormancy induction, alleviation; Sporobolus ioclados; Urochondra setuilosa

Published: December 1, 2002  Show citation

ACS AIP APA ASA Harvard Chicago Chicago Notes IEEE ISO690 MLA NLM Turabian Vancouver
Gulzar, S., & Khan, M.A. (2002). Alleviation of Salinity-Induced Dormancy in Perennial Grasses. Biologia plantarum, 45(4), 617-619. doi: 10.1023/A:1022352012012
Share...
Download citation
  • BibTeX (.bib)
  • Bookends (.ris)
  • EasyBib (.ris)
  • EndNote (.enw)
  • EndNote 8 (.xml)
  • ISI WoS (.isi)
  • Medlars (.medlars)
  • Mendeley (.ris)
  • MODS (.xml)
  • Papers (.ris)
  • RefWorks (.txt)
  • RefManager (.ris)
  • RIS (.ris)
  • MS Word (.xml)
  • Zotero (.ris)
    • Open full article

    References

    1. Amen, R.D., Carter, G.E., Kelly, R.J.: The nature of seed dormancy and germination in the salt marsh grass Distichlis spicata.-New Phytol. 69: 1005-1013, 1970. Go to original source...
    2. Bewley, J.D., Black, M.: Seeds: Physiology of Development and Germination.-Plenum Press, London 1994. Go to original source...
    3. Esashi, Y., Ohara, Y., Okazaki, M., Hishinuma, K.: Control of cocklebur seed germination by nitrogenous compounds: Nitrite, nitrate, hydroxylamine, thiourea, azide, and cyanide.-Plant Cell Physiol. 20: 349-361, 1979. Go to original source...
    4. Gul, B., Khan, M.A., Weber, D.J.: Alleviation of salinity and dark-enforced dormancy in Allenrolfea occidentalis seed under various thermoperiods.-Aust. J. Bot. 48: 745-752, 2000. Go to original source...
    5. Gulzar, S., Khan, M.A.: Seed germination of a halophytic grass Aeluropus lagopoides.-Ann. Bot. 87: 319-324, 2001. Go to original source...
    6. Gulzar, S., Khan, M.A., Ungar, I.A.: Effect of temperature and salinity on the germination of Urochondra setulosa.-Seed Sci. Technol. 29: 21-29, 2001.
    7. Ismail, A.M.A.: Germination ecophysiology in population of Zygophyllum qatarenses Hadidi from contrasting habitats.-J. arid Environ. 18: 185-194, 1990. Go to original source...
    8. Karssen, C.M.: Two sites of hormonal action during germination of Chenopodium album seeds.-Physiol. Plant. 36: 264-270, 1976. Go to original source...
    9. Ketring, D.L.: Ethylene and seed germination.-In: Khan, A.A. (ed.): The Physiology and Biochemistry of Seed Dormancy and Germination. Pp. 157-178. North-Holland Publishing Company, Amsterdam 1977.
    10. Khan, M.A., Ungar, I.A.: Alleviation of seed dormancy in the desert forb Zygophyllum simplex L. from Pakistan.-Ann. Bot. 80: 395-400, 1997. Go to original source...
    11. Khan, M.A., Ungar, I.A.: Alleviation of salinity enforced dormancy in Atriplex griffithi Moq. var. stocksii Boiss.-Seed Sci. Technol. 28: 29-37, 2000.
    12. Khan, M.A., Ungar, I.A.: Effect of dormancy regulating chemicals on the germination of Triglochin maritima.-Biol. Plant. 44: 301-303, 2001a. Go to original source...
    13. Khan, M.A., Ungar, I.A.: Role of dormancy regulating chemicals in release of innate and salinity-induced dormancy in Sporobolus arabicus Boiss.-Seed Sci. Technol. 29: 299-306, 2001b.
    14. Khan, M.A., Ungar, I.A.: Alleviation of salinity stress and the response to temperature in two seed morphs of Halopyrum mucronatum (Poaceae).-Aust. J. Bot. 49: in press, 2001c. Go to original source...
    15. Schönbeck, M.W., Egley, G.H.: Phase-sequence of red-root pigweed germination responses to ethylene and other stimuli.-Plant Physiol. 68: 175-179, 1981. Go to original source...
    16. Stout, R.G.: Fusicoccin activity and building in Arabidopsis thaliana.-Plant Physiol. 88: 999-1001, 1998. Go to original source...
    17. Ungar, I.A.: Seed germination and seed-bank ecology of halophytes.-In: Kigel, J. Galili, G. (ed.): Seed Development and Seed Germination. Pp. 599-628. Marcel Dekker, New York 1995. Go to original source...

    Return to the content