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| Soil temperature and moisture regulate seed dormancy cycling of a dune annual in a temperate desert | |
Gao, Ruiru1; Zhao, Ruihua1; Huang, Zhenying ; Yang, Xuejun; Wei, Xiaoya1; He, Zhan1; Walck, Jeffrey L.
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| 2018 | |
| Source Publication | ENVIRONMENTAL AND EXPERIMENTAL BOTANY
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| ISSN | 0098-8472 |
| Volume | 155Pages:688-694 |
| Abstract | 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. |
| Keyword | Agriophyllum squarroswn Dormancy cycle Seed germination Soil seed bank Soil temperature Soil moisture |
| Subject Area | Plant Sciences ; Environmental Sciences |
| DOI | 10.1016/j.envexpbot.2018.08.010 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | SQUARROSUM L. MOQ. ; AGRIOPHYLLUM-SQUARROSUM ; SAND DUNES ; SOLIDAGO ASTERACEAE ; GERMINATION BIOLOGY ; INNER-MONGOLIA ; BURIED SEEDS ; DRY STORAGE ; EVOLUTION ; CYCLES |
| WOS ID | WOS:000446289500065 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Subtype | Article |
| Publication Place | OXFORD |
| EISSN | 1873-7307 |
| Funding Organization | 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] |
| Corresponding Author Email | zhenying@ibcas.ac.cn |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ibcas.ac.cn/handle/2S10CLM1/20471 |
| Collection | 植被与环境变化国家重点实验室 |
| Affiliation | 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 |
| Recommended Citation 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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| File Name/Size | DocType | Version | Access | License | ||
| 1-s2.0-S009884721831（878KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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