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Publication Type J
Authors Hameed, A., M. Z. Ahmed and M. A. Khan
Title Comparative effects of NaCl and seasalt on seed germination of coastal halophytes
Source Pakistan Journal of Botany
Author Keywords Aeluropus lagopoides Desmostachya bipinnata Haloxylon stocksii Karachi Suaeda fruticosa
Abstract The coastal and near coastal habitats of Karachi, Pakistan are characterized by dominant stands of perennial halophytes like Aeluropus lagopoides, Desmostachya bipinnata, Haloxylon stocksii and Suaeda fruticosa. Experiments were carried out to investigate comparative effects of NaCl and seasalt salinity on both rate and final seed germination of these species. Salinity tolerance range of halophytes varied among species and also between salt types. Seed germination of all test species decreased with increase in salinity of both salt types. Aeluropus lagopoides was the most tolerant at 50 dS m(-1) whereas, S. fruticosa the least salt tolerant at 30 dS m(-1), although the tolerance range was in following sequence: A. lagopoides > D. bipinnata > H. stocksii > S. fruticosa. While rate of germination showed a different pattern D. bipinnata > A. lagopoides = H. stocksii > S. fruticosa. Seasalt affected seed germination as well as rate of germination of A. lagopoides, D. bipinnata and S. fruticosa more adversely than NaCl especially at higher concentration. However, in H. stocksii seed germination was not significantly different in either salt type. Rate of germination also followed same pattern.
Author Address [Hameed, A; Ahmed, MZ; Khan, MA] Univ Karachi, Dept Bot, Karachi 75270, Pakistan Khan, MA (reprint author), Univ Karachi, Dept Bot, Karachi 75270, Pakistan halophyte_ajmal@yahoo.com
ISSN 0556-3321
ISBN 0556-3321
29-Character Source Abbreviation Pak. J. Bot.
Publication Date Dec
Year Published 2006
Volume 38
Issue 5
Beginning Page 1605-1612
Unique Article Identifier WOS:000203707400030
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