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Publication Type J
Authors Duan, D. Y., X. J. Liu, M. A. Khan and B. Gul
Title Effects of salt and water stress on the germination of Chenopodium glaucum L., seed
Source Pakistan Journal of Botany
Author Keywords salinity; temperature; growth; halophytes; recovery
Abstract Effect of salts (Na2SO4, Na2CO3, MgSO4, NaCl, MgCl2), soil extract and polyethylene glycol (PEG-6000) on the germination of Chenopodium glaucum L., seed was studied. Maximum germination was obtained in distilled water. Germination decreased with increase in salinity. The inhibition of germination by salt solutions was in the order of MgCl2 > Na2SO4 > Na2CO3 > NaCl > Soil extract > MgSO4. Germination also decreased with decrease in osmotic potential caused by PEG treatment. Seed germination percentage was lower in NaCl than in iso-osmotic PEG solutions at osmotic potential less than - 0.5 MPa. Non-germinated seeds under various salt treatments when transferred to distilled water recovered completely, indicating little ionic effect of salinity on seed germination and viability. Germination inhibition, therefore, appears to be osmotic. Similar recovery response was noted when seeds from PEG solution were transferred to water.
Author Address Chinese Acad Sci, Shijiazhuang Inst Agr Modernizat, Shijiazhuang 050021, Japan Chinese Acad Sci, Shijiazhuang Inst Agr Modernizat, Shijiazhuang 050021, Japan Univ Karachi, Dept Bot, Karachi 75270, Pakistan Duan DY Chinese Acad Sci, Shijiazhuang Inst Agr Modernizat, Shijiazhuang 050021, Japan
29-Character Source Abbreviation Pak. J. Bot.
Publication Date Dec
Year Published 2004
Volume 36
Issue 4
Beginning Page 793-800
Unique Article Identifier ISI:000226557400014
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