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Authors Greenwood, ME; DuBowy, PJ
Author Full Name Greenwood, ME; DuBowy, PJ
Title Germination characteristics of Zannichellia palustris from New South Wales, Australia
Source AQUATIC BOTANY
Language English
Document Type Article
Author Keywords Australia; dormancy; estuarine restoration; salinity; stratification; temperature; Zannichellia
Keywords Plus WESTERN-EUROPE; ECOLOGY; SEEDS; TAXA; REGENERATION; TEMPERATURE; ABUNDANCE
Abstract We describe the germination characteristics of a population of Zanichella palustris from the Hunter region of New South Wales, Australia. Laboratory experiments indicate that germination of Z. palustris is affected by temperature, dormancy, stratification and salinity. Five trials, conducted at 30-day intervals, on stored seeds were undertaken. The pattern of germination differed between fresh seed and seed-bank seeds. Higher germination occured at 20 degrees C (18-67%) than 28 degrees C (7-60%) and seeds within the seed-bank outperformed fresh seeds (49 versus 36%), in terms of total percentage and rate of germination. Germination was lower in freshly collected seeds and increased after harvest, peaking in 1- and 2-month old seeds, before tapering off (40, 54, 58, 35, 22%, respectively). Stratification enabled a higher and more regularly paced germination to occur. However, no significant difference was discerned between seeds stratified at 5 degrees C for 30 days and non-stratified seeds. Although salinity did not appear to affect seed viability, concentrations of >= 6 ppt NaCl prevented germination. These germination patterns suggest that cool water, cold stratification and low salinity are optimal germination conditions. (c) 2005 Elsevier B.V. All rights reserved.
Author Address Univ Newcastle, Sch Biol & Chem Sci, Res Grp Restorat Ecol, Newcastle, NSW 2308, Australia; USA Corps Engineers, CESAJ PD ES, Jacksonville, FL 32232 USA
Reprint Address Greenwood, ME (corresponding author), Univ Newcastle, Discipline Geog & Environm Sci, Sch Environm & Life Sci, Newcastle, NSW 2308, Australia.
E-mail Address mary.greenwood@studentmail.newcastle.edu.au
Times Cited 9
Total Times Cited Count (WoS, BCI, and CSCD) 9
Publisher ELSEVIER SCIENCE BV
Publisher City AMSTERDAM
Publisher Address PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
ISSN 0304-3770
29-Character Source Abbreviation AQUAT BOT
ISO Source Abbreviation Aquat. Bot.
Publication Date MAY
Year Published 2005
Volume 82
Issue 1
Beginning Page 1
Ending Page 11
Digital Object Identifier (DOI) 10.1016/j.aquabot.2005.01.007
Page Count 11
Web of Science Category Plant Sciences; Marine & Freshwater Biology
Subject Category Plant Sciences; Marine & Freshwater Biology
Document Delivery Number 939BE
Unique Article Identifier WOS:000230046300001
Plants associated with this reference

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