干旱区生态环境知识资源中心(Arid): Comparison of prechilling stratification and sulfuric acid scarification on seed germination of Panicum virgatum under drought stress

Arid

DOI	10.15302/J-FASE-2017146
	Comparison of prechilling stratification and sulfuric acid scarification on seed germination of Panicum virgatum under drought stress
	Wang, Nan; Gao, Jing; Zhang, Suiqi; Yan, Feng
通讯作者	Wang, N
来源期刊	FRONTIERS OF AGRICULTURAL SCIENCE AND ENGINEERING
ISSN	2095-7505
EISSN	2095-977X
出版年	2017
卷号	4 期号:2 页码:220-227
英文摘要	In semi-arid regions of the Loess Plateau, water deficiency restricts plant performance. Panicum virgatum (switchgrass), which is a highly versatile grass, had been introduced to the Plateau as a restoration species. To determine if prechilling stratification (PCS) and sulfuric acid scarification (SAS) can optimize establishment, P. virgatum cvs Pathfinder, Trailblazer and Alamo were tested under different ambient water potentials by measuring germination and root and shoot growth along water potential gradients under laboratory conditions. Both PCS and SAS improved total germination percentage (TGP), with PCS being more beneficial. The effect of PCS and SAS on mean germination time (MGT) weakened gradually with increasing drought stress. Both PCS and SAS showed no obvious effect on promoting root and shoot growth. Both PCS and SAS reduced base water potential requirement for reaching 50% germination of Pathfinder and Trailblazer, with this effect greater for PCS. These results indicate that embryo dormancy may be a major factor limiting germination of P. virgatum under drought conditions. Pathfinder appears to be more suitable for a semi-arid environment, whereas Alamo appears to be unsuitable for drought conditions. Given the large difference between predicted value and measured value, the reliability and applicable scope of linear regression estimated Psi(50) needs further investigation, specification and optimization.
英文关键词	base water potential data analysis method embryo growth germination
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	ESCI
WOS记录号	WOS:000410755300011
WOS关键词	EMBRYO GROWTH ; SWEET SORGHUM ; LOESS PLATEAU ; L. CULTIVARS ; SWITCHGRASS ; TEMPERATURE ; CHINA ; DORMANCY ; SALT
WOS类目	Agronomy
WOS研究方向	Agriculture
Scopus学科分类	Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Peoples R China.
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/332249
作者单位	[Wang, Nan] Shaanxi Univ Chinese Med, Shaanxi Collaborat Innovat Ctr Chinese Med Resour, Xianyang 712083, Peoples R China; [Wang, Nan; Zhang, Suiqi; Yan, Feng] Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Peoples R China; [Gao, Jing] Shaanxi Univ Chinese Med, Coll Pharm, Xianyang 712046, Peoples R China
推荐引用方式 GB/T 7714	Wang, Nan,Gao, Jing,Zhang, Suiqi,et al. Comparison of prechilling stratification and sulfuric acid scarification on seed germination of Panicum virgatum under drought stress[J]. 西北农林科技大学,2017,4(2):220-227.
APA	Wang, Nan,Gao, Jing,Zhang, Suiqi,&Yan, Feng.(2017).Comparison of prechilling stratification and sulfuric acid scarification on seed germination of Panicum virgatum under drought stress.FRONTIERS OF AGRICULTURAL SCIENCE AND ENGINEERING,4(2),220-227.
MLA	Wang, Nan,et al."Comparison of prechilling stratification and sulfuric acid scarification on seed germination of Panicum virgatum under drought stress".FRONTIERS OF AGRICULTURAL SCIENCE AND ENGINEERING 4.2(2017):220-227.