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Publication Type J
Authors Bhatt, A., P. R. M. Souza and D. Gallacher
Title Intraspecific variation of Haloxylon salicornicum (Amaranthaceae) seed germination under salinity and simulated drought
Source Arid Land Research and Management
Author Keywords Arabian germination desert seed variation
Abstract Haloxylon salicornicum (Moq.) Bunge ex Boiss. is a suitable species for desert and coastal restoration for its forage production and dune stabilization. Inter-population variation of seed parameters has previously received little attention. Variation in seed germination response to drought and salinity stress was evaluated for three Kuwaiti populations for use in restoration projects. Germination parameters varied significantly among populations. Seeds from Kabd were larger and germinated at a higher percentage than the other two populations, Mutla and Liya, under conditions of saline (62.8%, 40.0%, and 50.7% respectively) and moisture (58.2%, 32.6%, and 45.6%) stress. Increasing salinity and drought simulation progressively inhibited seed germination across all populations. Drought simulation by PEG 6000 inhibited germination from -0.3 MPa, while salinity affected the germination proportion from 400 mM NaCl for all the studied populations. All populations exhibited a high recovery from NaCl and PEG stress, indicating the species is broadly adapted to survival through drought and saline conditions. Our findings indicate that revegetation success with this species will be influenced by the population characteristics of the maternal seed source.
Author Address [Bhatt, Arvind] Chinese Acad Sci, Lushan Bot Garden, Jiujian, Peoples R China. [Souza-Filho, Paulo R. M.] Univ Fed Oeste Bahia, Ctr Multidisciplinar Barra, Barreiras, Brazil. [Gallacher, David] Univ Sydney, Sch Life & Environm Sci, 12656 Newell Highway, Narrabri 2390, Australia. Gallacher, D (corresponding author), Univ Sydney, Sch Life & Environm Sci, 12656 Newell Highway, Narrabri 2390, Australia. d.gallacher@sydney.edu.au
ISSN 1532-4982
ISBN 1532-4982
29-Character Source Abbreviation Arid Land Res. Manag.
Digital Object Identifier (DOI) 10.1080/15324982.2020.1869862
Unique Article Identifier WOS:000606678000001
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