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Publication Type J
Authors Gul, B. and M. A. Khan
Title Effect of growth regulators and osmotica in alleviating salinity effects on the germination of Salicornia utahensis
Source Pakistan Journal of Botany
Author Keywords dormancy relieving compounds; seed-germination; allenrolfea- occidentalis; nitrogenous compounds; amaranthus-caudatus; dimorphic seeds; ethylene; temperature; fusicoccin; stress
Abstract Salicornia utahensis Tiderstrom is a perennial halophyte from the family Chenopodiaceae and is widely distributed in brackish water playas of northern Utah. Salicornia utahensis produces seeds Under high salinity and deposits its seed oil saline soil. Seeds showed only 65 % germination in distilled water. Seed germination decreased with the increase in salinity and less than 5 % seeds germinated at 900 mM NaCl. We determined the role of germination regulating chemicals in alleviating salinity stress. This germination was Substantially enhanced with the inclusion of ethephon, fusicoccin (FC), and kinetin, under saline conditions while gibberellic acid, thiourea, proline and betaine had little effect. Rate of germination showed a similar pattern with that of percentage germination.
Author Address Univ Karachi, Dept Bot, Karachi 75270, Pakistan Brigham Young Univ, Dept Bot & Range Sci, Provo, UT 84602 USA Gul B Univ Karachi, Dept Bot, Karachi 75270, Pakistan
29-Character Source Abbreviation Pak. J. Bot.
Year Published 2003
Volume 35
Issue 5
Beginning Page 885-894
Unique Article Identifier ISI:000224571600025
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