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dc.contributor.authorVolkova, L
dc.contributor.authorBennett, LT
dc.contributor.authorTausz, M
dc.date.accessioned2021-01-08T01:27:04Z
dc.date.available2021-01-08T01:27:04Z
dc.date.issued2011-01-01
dc.identifier.citationVolkova, L., Bennett, L. T. & Tausz, M. (2011). Diurnal and seasonal variations in photosynthetic and morphological traits of the tree ferns Dicksonia antarctica (Dicksoniaceae) and Cyathea australis (Cyatheaceae) in wet sclerophyll forests of Australia. ENVIRONMENTAL AND EXPERIMENTAL BOTANY, 70 (1), pp.11-19. https://doi.org/10.1016/j.envexpbot.2010.06.001.
dc.identifier.issn0098-8472
dc.identifier.urihttp://hdl.handle.net/11343/258604
dc.description.abstractSteady state and dynamic responses of two tree fern species of contrasting origins, Dicksonia antarctica (of Gondwanan origin) and Cyathea australis (Pan-tropical), were studied over two consecutive years under field conditions in a wet sclerophyll forest of south-east Australia. Irrespective of their different origins, there were no significant differences in photosynthetic performance between the two species. Growth irradiance and leaf temperature, but not plant water status, was significantly related to photosynthetic and morphological traits. At a common leaf temperature, maximum light-use efficiency of photosystem II (Fv/Fm) was significantly lower in winter than in summer, suggesting some limitation to PSII efficiency potentially associated with cold winter mornings. Both species displayed seasonal acclimation in a number of measured photosynthetic parameters and frond traits (i.e. Fv/Fm, Asat, gs, NA, total chlorophyll, SLA). Acclimation of stomatal density to spatial variation in growth irradiance seemed limited in both species, although stomatal pattern differed between species. Because there were no significant differences between the two species in photosynthetic parameters, both species can be described by common carbon gain and water use models at the leaf scale.
dc.languageEnglish
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD
dc.titleDiurnal and seasonal variations in photosynthetic and morphological traits of the tree ferns Dicksonia antarctica (Dicksoniaceae) and Cyathea australis (Cyatheaceae) in wet sclerophyll forests of Australia
dc.typeJournal Article
dc.identifier.doi10.1016/j.envexpbot.2010.06.001
melbourne.affiliation.departmentSchool of Ecosystem and Forest Sciences
melbourne.affiliation.departmentUniversity General
melbourne.source.titleEnvironmental and Experimental Botany
melbourne.source.volume70
melbourne.source.issue1
melbourne.source.pages11-19
melbourne.elementsid332893
melbourne.contributor.authorBennett, Lauren
melbourne.contributor.authorTausz, Michael
melbourne.contributor.authorVolkova, Liubov
dc.identifier.eissn1873-7307
melbourne.accessrightsThis item is currently not available from this repository


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