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Authors CONACHER, CA; POINER, IR; BUTLER, J; PUN, S; TREE, DJ
Author Full Name CONACHER, CA; POINER, IR; BUTLER, J; PUN, S; TREE, DJ
Title GERMINATION, STORAGE AND VIABILITY TESTING OF SEEDS OF ZOSTERA-CAPRICORNI ASCHERS FROM A TROPICAL BAY IN AUSTRALIA
Source AQUATIC BOTANY
Language English
Document Type Article
Keywords Plus MARINA L
Abstract The effects on the germination of Zostera capricorni Aschers. of several factors, including salinity, temperature and incising the seed coat were investigated and analysed using analysis of variance. We also investigated methods for estimating the viability of Z. capricorni seeds, and their storage life. Soaking the seeds in 0.5% tetrazolium at 25 degrees C for 18-24 h gave the most consistent staining pattern for testing the viability of Z. capricorni seeds. This method can now be used to ensure that seeds are viable before they are used in further studies of the germination and growth of seedlings or in rehabilitation projects. Low salinities (1-10 parts per thousand) and incising the seed coat promoted rapid and almost complete germination of Z. capricorni, indicating the seeds do not have a primary dormancy. Temperature did not affect seeds in the lower salinities (1, 5 and 10 parts per thousand). However, at higher salinities (20, 30 and 40 parts per thousand) seeds only germinated at low temperatures (15 degrees C). In Moreton Bay, salinities are rarely as low as 1-10 parts per thousand; consequently Z. capricorni is most likely to germinate in winter, when temperature decreases. Paradoxically most Z. capricorni seeds are found in spring and summer, with very few present in winter. The most successful storage of Z. capricorni seeds was at 5-10 degrees C in aerated water. Under these conditions 58+/-10% (SE) of these seeds were still viable after 50 days.
Author Address QUEENSLAND DEPT PRIMARY IND,STAND LAB,INDOOROOPILLY,QLD 4068,AUSTRALIA
Reprint Address CONACHER, CA (corresponding author), CSIRO,DIV FISHERIES,MARINE LABS,POB 120,CLEVELAND,QLD 4163,AUSTRALIA.
Times Cited 52
Total Times Cited Count (WoS, BCI, and CSCD) 58
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 JUL
Year Published 1994
Volume 49
Issue 1
Beginning Page 47
Ending Page 58
Digital Object Identifier (DOI) 10.1016/0304-3770(94)90005-1
Page Count 12
Web of Science Category Plant Sciences; Marine & Freshwater Biology
Subject Category Plant Sciences; Marine & Freshwater Biology
Document Delivery Number PR010
Unique Article Identifier WOS:A1994PR01000004
Plants associated with this reference

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