IB-CAS  > 植被与环境变化国家重点实验室
Sand burial helps regulate timing of seed germination of a dominant herb in an inland dune ecosystem with a semiarid temperate climate
Ye, Xuehua1; Li, Leilei1; Baskin, Carol C.; Baskin, Jerry M.; Du, Juan1; Huang, Zhenying1
2019
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume680Pages:44-50
AbstractSand burial plays important role in the life history of species in sandy areas of arid and semi-arid temperate regions, by affecting seed germination, seedling growth and survival and plant community. However, few studies have focused on the effects of sand burial on the dynamics of seed dormancy in such areas. In this study, seed germination characteristics of Allium tenuissimum, a dominant perennial herb in the dune ecosystem in Ordos Plateau in northern China, was investigated. Dormancy dynamics were monitored for seeds buried at sand depths of 0, 2 and 5 cm in the natural habitats for 13 months. Freshly matured seeds of A. tenuissimum were conditionally dormant and germinated to high percentages at high but not low temperatures. Germination percentages were increased by incubation at summer temperature (15/25 degrees C) and dry storage, but GA(3) and cold stratification had no significant effects. These results suggested that seeds of A. tenuissimum were conditionally dormant, and incubation under warm, wet (but not cold, wet) conditions and dry after-ripening resulted in complete dormancy releasing. Seeds buried at 2 and 5 cm in the field for 13 months exhibited seasonal changes in germination, with an increase in spring and summer followed by decrease in autumn and winter. However, seeds on the soil surface (0 cm) gradually came out of dormancy beginning in January, and germinated percentage was highest in July, after which remained high. The peak of nondormancy for seeds buried in the field was in the summer, which corresponds to the period of highest annual precipitation. Sand burial helped mediate seeds dormancy dynamics of A. tenuissimum via seasonal dormancy cycling. Our finding contributes to a better understanding of how timing of seedling establishment is controlled in a semiarid dune ecosystem in temperate climate. (C) 2019 Elsevier B.V. All lights reserved.
KeywordAllium tenuissimum Dormancy dynamics Sand burial Seed germination Seed population Soil seed bank
Subject AreaEnvironmental Sciences
DOI10.1016/j.scitotenv.2019.05.087
Indexed BySCI
Language英语
WOS KeywordANNUAL DORMANCY CYCLES ; SEASONAL-CHANGES ; SOIL ; PLANT ; PRECIPITATION ; STRATEGIES ; EMERGENCE ; SURVIVAL ; EROSION ; SYSTEM
WOS Research AreaEnvironmental Sciences & Ecology
WOS IDWOS:000468863400006
PublisherELSEVIER
SubtypeArticle
Publication PlaceAMSTERDAM
EISSN1879-1026
Funding OrganizationKey Basic Research and Development Plan of ChinaNational Basic Research Program of China [2016YFC0500805-02] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31870711, 31570416, 31470032]
Corresponding Author EmailZhenying@ibcas.ac.cn
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ibcas.ac.cn/handle/2S10CLM1/19657
Collection植被与环境变化国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
2.Chinese Acad Sci, Inner Mongolia Res Ctr Prataculture, Beijing 100093, Peoples R China
3.Baskin, Carol C.; Baskin, Jerry M.] Univ Kentucky, Dept Biol, Lexington, KY 40506 USA
4.Baskin, Carol C.] Univ Kentucky, Dept Plant & Soil Sci, Lexington, KY 40546 USA
Recommended Citation
GB/T 7714
Ye, Xuehua,Li, Leilei,Baskin, Carol C.,et al. Sand burial helps regulate timing of seed germination of a dominant herb in an inland dune ecosystem with a semiarid temperate climate[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,680:44-50.
APA Ye, Xuehua,Li, Leilei,Baskin, Carol C.,Baskin, Jerry M.,Du, Juan,&Huang, Zhenying.(2019).Sand burial helps regulate timing of seed germination of a dominant herb in an inland dune ecosystem with a semiarid temperate climate.SCIENCE OF THE TOTAL ENVIRONMENT,680,44-50.
MLA Ye, Xuehua,et al."Sand burial helps regulate timing of seed germination of a dominant herb in an inland dune ecosystem with a semiarid temperate climate".SCIENCE OF THE TOTAL ENVIRONMENT 680(2019):44-50.
Files in This Item:
File Name/Size DocType Version Access License
j.scitotenv.2019.05.(1248KB)期刊论文出版稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Ye, Xuehua]'s Articles
[Li, Leilei]'s Articles
[Baskin, Carol C.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Ye, Xuehua]'s Articles
[Li, Leilei]'s Articles
[Baskin, Carol C.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Ye, Xuehua]'s Articles
[Li, Leilei]'s Articles
[Baskin, Carol C.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: j.scitotenv.2019.05.087.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.