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Effects of amount and frequency of precipitation and sand burial on seed germination, seedling emergence and survival of the dune grass Leymus secalinus in semiarid China

文献类型：期刊论文

作者Zhu, Yajuan1; Yang, Xuejun; Baskin, Carol C.; Baskin, Jerry M.; Dong, Ming; Huang, Zhenying
刊名PLANT AND SOIL
出版日期2014
卷号374期号:1-2页码:399-409
关键词Desiccation tolerance Hydration/dehydration Precipitation Sand burial Seed germination Seedling emergence
ISSN号0032-079X
DOI10.1007/s11104-013-1892-9
文献子类Article
英文摘要Seed germination and seedling emergence are vulnerable to water stress in arid environments. When precipitation is low and unpredictable during the early growing season, seeds near the sand surface often suffer from hydration/dehydration during germination. We investigated the responses of seedling emergence and survival of a sand dune grass with high sand stabilization value to amount and frequency of precipitation and depth of burial in sand. Effects of amount and frequency of precipitation, burial and hydration/dehydration on seedling emergence of Leymus secalinus, were examined using standard procedures. Seedling emergence was affected by amount and frequency of monthly precipitation and depth of burial, and it decreased as precipitation frequency decreased with same amount of precipitation. Highest emergence percentage was obtained with 100 or 150 mm precipitation at 1-4 cm depth. Hydration/dehydration treatments decreased germination and increased dormancy percentage. Young seedlings with root lengths of 0-1 mm desiccated up to 30 days revived after rehydration. Seedling emergence of L. secalinus is adapted to 150 mm monthly precipitation with frequency of 10-30 times per month, 1-4 cm burial depth and dehydration interval of 1-2 days. Alteration of amount and/or frequency of precipitation caused by climate change could markedly affect seedling emergence and population regeneration of this species.
学科主题Agronomy ; Plant Sciences ; Soil Science
出版地DORDRECHT
电子版国际标准刊号1573-5036
WOS关键词HYDRATION-DEHYDRATION ; WINTER DROUGHT ; WATER ; ANNUALS ; SUMMER ; ESTABLISHMENT ; RESPONSES ; PLANTS ; CONSEQUENCES ; VARIABILITY
WOS研究方向Agriculture ; Plant Sciences
语种英语
WOS记录号WOS:000328849200030
出版者SPRINGER
资助机构National Key Technology RD Program [2012BAD16B03-01] ; Key Basic Research and Development Plan of China [2010CB951304] ; National Natural Science Foundation of P. R. China [30872074]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/27200]  
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.Chinese Acad Forestry, Inst Desertificat Studies, Beijing 100091, 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
推荐引用方式
GB/T 7714		 Zhu, Yajuan,Yang, Xuejun,Baskin, Carol C.,et al. Effects of amount and frequency of precipitation and sand burial on seed germination, seedling emergence and survival of the dune grass Leymus secalinus in semiarid China[J]. PLANT AND SOIL,2014,374(1-2):399-409.
APA Zhu, Yajuan,Yang, Xuejun,Baskin, Carol C.,Baskin, Jerry M.,Dong, Ming,&Huang, Zhenying.(2014).Effects of amount and frequency of precipitation and sand burial on seed germination, seedling emergence and survival of the dune grass Leymus secalinus in semiarid China.PLANT AND SOIL,374(1-2),399-409.
MLA Zhu, Yajuan,et al."Effects of amount and frequency of precipitation and sand burial on seed germination, seedling emergence and survival of the dune grass Leymus secalinus in semiarid China".PLANT AND SOIL 374.1-2(2014):399-409.

入库方式： OAI收割

来源：植物研究所

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