Soil temperature and moisture regulate seed dormancy cycling of a dune annual in a temperate desert

doi:10.1016/j.envexpbot.2018.08.010

	Soil temperature and moisture regulate seed dormancy cycling of a dune annual in a temperate desert
	Gao, Ruiru 1; Zhao, Ruihua 1; Huang, Zhenying; Yang, Xuejun ; Wei, Xiaoya 1; He, Zhan 1; Walck, Jeffrey L.
	2018
发表期刊	ENVIRONMENTAL AND EXPERIMENTAL BOTANY
ISSN	0098-8472
卷号	155 页码:688-694
摘要	Plants have evolved diverse strategies to ensure their survival and regeneration in specific environments. Although temperature and soil moisture control seed dormancy, most studies have concentrated on temperature and little is known about the influence of moisture for species in the arid region. Responses of seed dormancy and germination of Agriophyllum squarrosun (Amaranthaceae), a pioneer and dominant species in Mu Us Sandland in northern China, to variations in soil moisture and temperature were examined. Our study showed that (1) freshly harvested seeds were in non-deep physiological (conditional) dormancy; (2) seeds in the soil exhibited dormancy cycling being non-dormant in spring and dormant from summer to autumn; (3) dry conditions at cold or warm temperatures alleviated dormancy; (4) germination was promoted by wetting-drying cycles; and (5) dormancy was induced by warm temperature (15/25 degrees) and particularly low soil moisture less than 14.0%. The seasonal pattern of seed dormancy/germination was regulated by seasonal rainfall and soil temperature. At the same time, a range of conditions enable dormancy break and germination regardless of soil moisture conditions allowing the species to persist in an unpredictable environment.
关键词	Agriophyllum squarroswn Dormancy cycle Seed germination Soil seed bank Soil temperature Soil moisture
学科领域	Plant Sciences ; Environmental Sciences
DOI	10.1016/j.envexpbot.2018.08.010
收录类别	SCI
语种	英语
WOS关键词	SQUARROSUM L. MOQ. ; AGRIOPHYLLUM-SQUARROSUM ; SAND DUNES ; SOLIDAGO ASTERACEAE ; GERMINATION BIOLOGY ; INNER-MONGOLIA ; BURIED SEEDS ; DRY STORAGE ; EVOLUTION ; CYCLES
WOS记录号	WOS:000446289500065
出版者	PERGAMON-ELSEVIER SCIENCE LTD
文献子类	Article
出版地	OXFORD
EISSN	1873-7307
资助机构	National Key Technology RD ProgramNational Key Technology R&D Program [2016YFC050080502] ; National Natural Science Foundation of P.R. ChinaNational Natural Science Foundation of China (NSFC) [31570416, 31370705] ; Strategy of CAS Biological Resources Service Network Planning Project [ZSSD-014]
作者邮箱	zhenying@ibcas.ac.cn
引用统计	被引频次：12[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/20471
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Shanxi Normal Univ, Sch Life Sci, Linfen 041000, Shanxi, Peoples R China 3.Walck, Jeffrey L.] Middle Tennessee State Univ, Dept Biol, Murfreesboro, TN 37132 USA
推荐引用方式 GB/T 7714	Gao, Ruiru,Zhao, Ruihua,Huang, Zhenying,et al. Soil temperature and moisture regulate seed dormancy cycling of a dune annual in a temperate desert[J]. ENVIRONMENTAL AND EXPERIMENTAL BOTANY,2018,155:688-694.
APA	Gao, Ruiru.,Zhao, Ruihua.,Huang, Zhenying.,Yang, Xuejun.,Wei, Xiaoya.,...&Walck, Jeffrey L..(2018).Soil temperature and moisture regulate seed dormancy cycling of a dune annual in a temperate desert.ENVIRONMENTAL AND EXPERIMENTAL BOTANY,155,688-694.
MLA	Gao, Ruiru,et al."Soil temperature and moisture regulate seed dormancy cycling of a dune annual in a temperate desert".ENVIRONMENTAL AND EXPERIMENTAL BOTANY 155(2018):688-694.

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