干旱区生态环境知识资源中心(Arid): Seed germination traits predict seedling emergence rather than survival of Stipa breviflora in populations along a latitude gradient

Arid

DOI	10.1002/ldr.4046
	Seed germination traits predict seedling emergence rather than survival of Stipa breviflora in populations along a latitude gradient
	Zhang, Zuxin; Luo, Xinping; Chen, Dali; Chen, Lijun; Hu, Xiaowen
通讯作者	Hu, XW (corresponding author), Lanzhou Univ, Coll Pastoral Agr Sci & Technol, Minist Agr & Rural Affairs, Key Lab Grassland Livestock Ind Innovat,State Key, 768 Jiayuguan West Rd, Lanzhou 730020, Peoples R China.
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
出版年	2021
卷号	32 期号:15 页码:4417-4429
英文摘要	Seed germination is a key stage for successful seedling establishment, and thus it should be considered when selecting the seed source for ecological restoration. However, how seed germination traits of wild species in the laboratory contribute to seedling emergence and establishment under natural conditions is not well known. In this study, seeds from 12 populations collected in 2017 and 14 additional populations collected in 2018 of Stipa breviflora were used for laboratory germination tests and field seedling establishment evaluation in the Alxa Desert and at Yuzhong on the Loess Plateau. Depending on germination conditions, seed germination percentage showed a positive, negative, or no correlation with the latitude of seed collection. Seedlings derived from seeds collected in southern populations had a higher establishment percentage in southern growing sites than those from northern populations, and vice versa, suggesting that populations are locally adapted at the seedling survival stage. Germination in laboratory was generally positively correlated with seedling emergence in the field. There was positive relationship between lab germination and field seedling survival at Yuzhong Station, while negative relationship was observed at Alxa Station. These results suggested that high germination percentages could be adaptive or maladaptive depending on offspring growth conditions. Thus, seed source selection based on germination traits should take offspring growing conditions into consideration.
英文关键词	ecological restoration local adaptation seed germination seedling establishment Stipa breviflora
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000685875400001
WOS关键词	FIELD EMERGENCE ; LOCAL ADAPTATION ; SAND DUNES ; TEMPERATURE ; PLANT ; DESERT ; ESTABLISHMENT ; DORMANCY ; BURIAL ; VIGOR
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364104
作者单位	[Zhang, Zuxin; Luo, Xinping; Chen, Dali; Chen, Lijun; Hu, Xiaowen] Lanzhou Univ, Coll Pastoral Agr Sci & Technol, Minist Agr & Rural Affairs, Key Lab Grassland Livestock Ind Innovat,State Key, 768 Jiayuguan West Rd, Lanzhou 730020, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Zuxin,Luo, Xinping,Chen, Dali,et al. Seed germination traits predict seedling emergence rather than survival of Stipa breviflora in populations along a latitude gradient[J]. 兰州大学,2021,32(15):4417-4429.
APA	Zhang, Zuxin,Luo, Xinping,Chen, Dali,Chen, Lijun,&Hu, Xiaowen.(2021).Seed germination traits predict seedling emergence rather than survival of Stipa breviflora in populations along a latitude gradient.LAND DEGRADATION & DEVELOPMENT,32(15),4417-4429.
MLA	Zhang, Zuxin,et al."Seed germination traits predict seedling emergence rather than survival of Stipa breviflora in populations along a latitude gradient".LAND DEGRADATION & DEVELOPMENT 32.15(2021):4417-4429.