Journal article
The role of after-ripening in promoting germination of arid zone seeds: a study on six Australian species
Botanical Journal of the Linnean Society, Vol.161(4), pp.411-421
2009
Abstract
The effects of after-ripening (storage under warm, dry conditions) on seed germination was examined in six plant species from the arid zone of Western Australia with the aim of improving germination and germination rate for rehabilitation objectives. Study species (Acanthocarpus preissii, Anthocercis littorea, Dioscorea hastifolia, Eremophila oldfieldii, Thryptomene baeckeacea and Zygophyllum fruticulosum) were selected based on diverse plant habits, seed types and requirements for rehabilitation. After-ripening was investigated by adjusting seed moisture content to 13 and 50 equilibrium relative humidity (eRH) at 23 °C and storing seeds at two temperatures (30 and 45 °C) from 1 to 18 months. Following storage, seeds were incubated in water, gibberellic acid (GA3) or karrikinolide (KAR1; the butenolide, 3-methyl-2H-furo[2,3-c]pyran-2-one). All after-ripening conditions increased germination percentage and rate of A. littorea and D. hastifolia, with A. littorea only germinating when treated with GA3 or KAR1. The germination of Z. fruticulosum was dependent on after-ripening temperature and seed moisture content. After-ripening had a limited effect on the remaining three species. The restoration implications of the findings are discussed.
Details
- Title
- The role of after-ripening in promoting germination of arid zone seeds: a study on six Australian species
- Authors/Creators
- L.E. Commander (Author/Creator)D.J. Merritt (Author/Creator)D.P. Rokich (Author/Creator)K.W. Dixon (Author/Creator)
- Publication Details
- Botanical Journal of the Linnean Society, Vol.161(4), pp.411-421
- Publisher
- Blackwell Publishing
- Identifiers
- 991005543109807891
- Copyright
- © 2009 The Linnean Society of London.
- Murdoch Affiliation
- School of Environmental Science
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.40 Forestry
- 3.40.86 Plant Communities
- Web Of Science research areas
- Plant Sciences
- ESI research areas
- Plant & Animal Science