Arid
DOI10.1111/j.1095-8339.2009.01009.x
The role of after-ripening in promoting germination of arid zone seeds: a study on six Australian species
Commander, Lucy E.1,2; Merritt, David J.1,2; Rokich, Deanna P.1,2,3; Dixon, Kingsley W.1,2
通讯作者Commander, Lucy E.
来源期刊BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
ISSN0024-4074
EISSN1095-8339
出版年2009
卷号161期号:4页码:411-421
英文摘要

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 degrees C and storing seeds at two temperatures (30 and 45 degrees C) from 1 to 18 months. Following storage, seeds were incubated in water, gibberellic acid (GA(3)) or karrikinolide (KAR(1); 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 GA(3) or KAR(1). 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. (C) 2009 The Linnean Society of London, Botanical Journal of the Linnean Society, 2009, 161, 411-421.


英文关键词Australia karrikinolide rehabilitation seed dormancy smoke
类型Article
语种英语
国家Australia
收录类别SCI-E
WOS记录号WOS:000272452000004
WOS关键词SOUTHWESTERN WESTERN-AUSTRALIA ; FIRE EPHEMERALS ; DORMANCY ; SMOKE ; TEMPERATURE ; MECHANISMS ; ASTERACEAE ; PLANTS ; LIGHT ; DIOSCOREACEAE
WOS类目Plant Sciences
WOS研究方向Plant Sciences
来源机构University of Western Australia
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/160067
作者单位1.Kings Pk & Bot Gardens, Perth, WA 6005, Australia;
2.Univ Western Australia, Sch Plant Biol, Fac Nat & Agr Sci, Crawley, WA 6009, Australia;
3.Murdoch Univ, Sch Environm Sci, Murdoch, WA 6150, Australia
推荐引用方式
GB/T 7714
Commander, Lucy E.,Merritt, David J.,Rokich, Deanna P.,et al. The role of after-ripening in promoting germination of arid zone seeds: a study on six Australian species[J]. University of Western Australia,2009,161(4):411-421.
APA Commander, Lucy E.,Merritt, David J.,Rokich, Deanna P.,&Dixon, Kingsley W..(2009).The role of after-ripening in promoting germination of arid zone seeds: a study on six Australian species.BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,161(4),411-421.
MLA Commander, Lucy E.,et al."The role of after-ripening in promoting germination of arid zone seeds: a study on six Australian species".BOTANICAL JOURNAL OF THE LINNEAN SOCIETY 161.4(2009):411-421.
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