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Phenology and germination in some rainforest canopy species at Mt Field National Park, Tasmania

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Read, J (1989) Phenology and germination in some rainforest canopy species at Mt Field National Park, Tasmania. Papers and Proceedings of the Royal Society of Tasmania, 123. pp. 211-221. ISSN 0080-4703

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Abstract

The timing of shoot expansion, flowering, germination and leaf fall was recorded in some rainforest canopy species
at Mt Field National Park, Tasmania. Seed collected from these and two other species was germinated in Hobart under
controlled conditions. Most of the variation in phenology and germination requirements was continuous and correlated
broadly with distribution with respect to the temperature climate. The species which commonly occur at high altitudes
-Athrotaxis selaginoides, A. cupressoides, Nothofagus gunnii and N. cunninghamii-germinated earlier at low
temperatures than the others, with provenance variation indicated in N. cunnillghamii. The cold-sensitive species
Atherosperma moschatum failed to germinate at low temperatures, with a secondary dormancy indicated. Atherosperma
moschatum and Phyllocladus asplelliifolius showed delayed shoot expansion during the cool growing season of
1984-85 which rendered the shoots more frost-sensitive. The periodicity of seed production is also greatest in the high
altitude species, although the ecological implications are uncertain with respect to climate. Only P. aspleniifolius shows
evidence of prolonged seed dormancy. This characteristic enables the populations to survive large-scale disturbance as
soil-stored seed and therefore is an important feature of the regeneration ecology of this species.

Item Type: Article
Keywords: Royal Society of Tasmania, RST, Van Diemens Land, natural history, science, ecology, taxonomy, botany, zoology, geology, geography, papers & proceedings, Australia, UTAS Library
Journal or Publication Title: Papers and Proceedings of the Royal Society of Tasmania
Page Range: pp. 211-221
ISSN: 0080-4703
Collections: Royal Society Collection > Papers & Proceedings of the Royal Society of Tasmania
Additional Information:

Copyright Royal Society of Tasmania

Date Deposited: 23 May 2012 04:46
Last Modified: 18 Nov 2014 04:34
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