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Version 3.22
Publication Type J
Authors Commander, LE; Merritt, DJ; Rokich, DP; Dixon, KW
Author Full Name Commander, L. E.; Merritt, D. J.; Rokich, D. P.; Dixon, K. W.
Title Seed biology of Australian arid zone species: Germination of 18 species used for rehabilitation
Language English
Document Type Article
Author Keywords Dormancy; Karrikinolide; Seed ecology; Smoke
Abstract Revegetation of disturbed land, particularly in arid environments, is often hindered by low seedling establishment. information on seed biology and germination cues of keystone species is lacking, particularly in and Australia; a major zone for mining developments. This study investigated seed characteristics and germination of 18 common species required for rehabilitation of disturbed areas at Shark Bay Salt in the Shark Bay World Heritage Area, Western Australia. Untreated seeds of seven species (Aphanopetalum clematideum, Atriplex bunburyana, Austrostipa elegantissima, Melaleuca cardiophylla, Pembertonia latisquamea, Rhagodia baccata, Salsolo tragus) exhibited high germination percentages. Seeds of two species (Acacia tetragonophylla, Stylobasium spathulatum) had low imbibition, which increased with hot-water treatment, hence require scarification for germination. Gibberellic acid, smoke water and karrikinolide (a butenolide isolated from smoke) substantially increased germination percentages of three species (Anthocercis littorea, Diploloena grandiflora, Solanum orbiculatum). Seeds of the remaining six species (Dioscorea hastifolia, Eremophila oldfieldii, Nitraria billardierei, Ptilotus exaltatus, Thryptomene baeckeacea, Zygophyllum fruticulosum) had low germination percentages regardless of treatment. Most species germinated equally well at 26/13 degrees C and 33/18 degrees C, however seven species had improved performance at 26/13 degrees C. This study is significant to land managers and conservation agencies with an interest in optimising germination of arid zone seeds for restoration. Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved.
Author Address [Commander, L. E.; Merritt, D. J.; Rokich, D. P.; Dixon, K. W.] Kings Pk & Bot Gardens, Perth, WA 6005, Australia; [Commander, L. E.; Merritt, D. J.; Rokich, D. P.; Dixon, K. W.] Univ Western Australia, Sch Plant Biol, Fac Nat & Agr Sci, Crawley, WA 6009, Australia; [Rokich, D. P.] Murdoch Univ, Sch Environm Sci, Murdoch, WA 6150, Australia
Reprint Address Commander, LE (reprint author), Kings Pk & Bot Gardens, Perth, WA 6005, Australia.
E-mail Address lucy.commander@bgpa.wa.gov.au; david.merritt@bgpa.wa.gov.au; deanna.rokich@bgpa.wa.gov.au; kingsley.dixon@bgpa.wa.gov.au
ResearcherID Number Commander, Lucy/G-5546-2011; Merritt, David/G-9376-2011; Dixon, Kingsley/B-1042-2011; Dixon, Kingsley/A-8133-2016
ORCID Number Dixon, Kingsley/0000-0001-5989-2929
Funding Agency and Grant Number Minerals and Energy Research Institute of Western Australia; Botanic Gardens and Parks Authority - Alcoa of Australia Ltd
Funding Text Funding for this research was provided by Shark Bay Salt whose staff also provided logistical support for the collection of some seeds used in this study. In addition, LEC received a post-graduate scholarship from the Minerals and Energy Research Institute of Western Australia. Funding for DJM is provided by the Botanic Gardens and Parks Authority - Alcoa of Australia Ltd Seed Conservation Scientist post. Thanks go to Dr. Jeff Walck and Dr. Siti Hidayati for their comments to improve the manuscript.
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Cited Reference Count 47
Times Cited 25
Total Times Cited Count (WoS, BCI, and CSCD) 27
Publisher City LONDON
Publisher Address 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND
ISSN 0140-1963
29-Character Source Abbreviation J ARID ENVIRON
ISO Source Abbreviation J. Arid. Environ.
Publication Date JUN-JUL
Year Published 2009
Volume 73
Issue 6-7
Beginning Page 617
Ending Page 625
Digital Object Identifier (DOI) 10.1016/j.jaridenv.2009.01.007
Page Count 9
Web of Science Category Ecology; Environmental Sciences
Subject Category Environmental Sciences & Ecology
Document Delivery Number 448YW
Unique Article Identifier WOS:000266298900005
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