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Publication Type J
Authors Orlovsky, N. S., U. N. Japakova, I. Shulgina and S. Volis
Title Comparative study of seed germination and growth of Kochia prostrata and Kochia scoparia (Chenopodiaceae) under salinity
Source Journal of Arid Environments
Abstract Soils of arid regions of Central Asia contain salts of different types that may differentially affect seed germination and plant development. We studied effect of NaCl, Na2SO4, 2NaCl + KCl + CaCl2 and 2Na(2)SO(4)+K2SO4+MgSO4 on germination of Kochia prostrata and Kochia scoparia seeds under a range of concentrations from 0.5 to 5% and at two constant temperature regimes +22 degrees C and +6 degrees C. The observed salt tolerance limit of germination at constant temperature +22 degrees C for both species was 5-6%, while at low temperature (+6 degrees C) this limit was 2%. The salt tolerance of young plants (before flowering) was 3% for NaCl. Low concentrations of sulfuric and mixed salts had a stimulating effect on seed germination in K. prostrata. Despite similarity of salt-tolerance limits the studied species showed a significant difference in seed recovery ability, i.e. the ability of ungerminated, salt-soaked seeds to germinate after transfer to fresh water. K. scoparia demonstrated a full germination recovery after seed transfer to distilled water while K. prostrata showed only a partial recovery. (C) 2011 Elsevier Ltd. All rights reserved.
Author Address [Volis, S.] Ben Gurion Univ Negev, Dept Life Sci, IL-84105 Beer Sheva, Israel. [Orlovsky, N. S.; Shulgina, I.] Ben Gurion Univ Negev, Inst Agr & Biotechnol Drylands, IL-84990 Midreshet Ben Gurion, Israel. [Japakova, U. N.] Acad Sci Uzbek, Inst Bot, Tashkent 700143, Uzbekistan. Volis, S (reprint author), Ben Gurion Univ Negev, Dept Life Sci, POB 653, IL-84105 Beer Sheva, Israel. volis@bgu.ac.il
ISSN 0140-1963
ISBN 0140-1963
Publication Date Jun
Year Published 2011
Volume 75
Issue 6
Beginning Page 532-537
Digital Object Identifier (DOI) 10.1016/j.jaridenv.2011.01.014
Unique Article Identifier WOS:000288890100004
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