干旱区生态环境知识资源中心(Arid): Cold stratification requirements for seed dormancy-break differ in soil moisture content but not duration for alpine and desert species

Arid

DOI	10.1007/s11104-021-05212-4
	Cold stratification requirements for seed dormancy-break differ in soil moisture content but not duration for alpine and desert species
	Chen, Dali; Yuan, Zhen; Luo, Xinping; Yang, Lingjie; Chen, Xianglai; Zhang, Zuxin; Wang, Jingjing; Hu, Xiaowen
通讯作者	Hu, XW (corresponding author), Lanzhou Univ, State Key Lab Grassland Agroecosyst,Coll Pastoral, Key Lab Grassland Livestock Ind Innovat,Minist Ed, Minist Agr & Rural Affairs,Engn Res Ctr Grassland, Lanzhou 730000, Peoples R China.
来源期刊	PLANT AND SOIL
ISSN	0032-079X
EISSN	1573-5036
出版年	2022
英文摘要	Background and aims Seed dormancy-break via cold stratification is of fundamental importance for plant adaptation to environmental conditions and response to climate change through timing germination, seedling emergence and consequently community dynamics. Although cold stratification requirements for dormancy break vary among species, it is not known if this variation is determined by the environmental conditions experienced by seeds or by differences among species. Methods We determined the soil moisture content and duration of cold stratification required for seed dormancy-break of species from alpine and desert habitats (soil moisture content: 20 and 18 species from alpine and desert habitats, respectively; duration: 16 and 16 species from the alpine and desert, respectively), and examined the correlation between environmental conditions (soil moisture content and duration of cold stratification) required for dormancy-break and seed traits. Results Seed germination increased and then decreased as soil moisture content or duration of cold stratification increased. The optimal and critical soil moisture content for seed dormancy-break were higher for alpine species than desert species. A positive correlation between optimal soil moisture content and seed shape was found. However, the duration of cold stratification required for dormancy-break was not related to habitat, seed mass or seed shape. Conclusions Our results suggest that soil moisture content rather than duration of cold stratification resulting from climate change could affect seed germination and consequently seedling emergence and establishment, especially for desert species.
英文关键词	Seed dormancy Cold stratification Habitats Soil moisture content Stratification duration Climate change
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000725456200011
WOS关键词	CLIMATE-CHANGE ; GERMINATION RESPONSE ; PRECHILL DURATION ; R PACKAGE ; TEMPERATURE ; INHIBITION ; AUSTRALIA ; ALTITUDE ; PATTERNS ; PREDICT
WOS类目	Agronomy ; Plant Sciences ; Soil Science
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/374676
作者单位	[Chen, Dali; Yuan, Zhen; Luo, Xinping; Yang, Lingjie; Chen, Xianglai; Zhang, Zuxin; Wang, Jingjing; Hu, Xiaowen] Lanzhou Univ, State Key Lab Grassland Agroecosyst,Coll Pastoral, Key Lab Grassland Livestock Ind Innovat,Minist Ed, Minist Agr & Rural Affairs,Engn Res Ctr Grassland, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Chen, Dali,Yuan, Zhen,Luo, Xinping,et al. Cold stratification requirements for seed dormancy-break differ in soil moisture content but not duration for alpine and desert species[J],2022.
APA	Chen, Dali.,Yuan, Zhen.,Luo, Xinping.,Yang, Lingjie.,Chen, Xianglai.,...&Hu, Xiaowen.(2022).Cold stratification requirements for seed dormancy-break differ in soil moisture content but not duration for alpine and desert species.PLANT AND SOIL.
MLA	Chen, Dali,et al."Cold stratification requirements for seed dormancy-break differ in soil moisture content but not duration for alpine and desert species".PLANT AND SOIL (2022).