干旱区生态环境知识资源中心(Arid): Growth phenology and water potential patterns of Periploca angustifolia in relation to water availability

Arid

DOI	10.1111/aje.12735
	Growth phenology and water potential patterns of Periploca angustifolia in relation to water availability
	Dghim, Fairouz 1,2; Boukhris, Makki 2; Neffati, Mohamed 1; Chaieb, Mohamed 2
通讯作者	Dghim, Fairouz
来源期刊	AFRICAN JOURNAL OF ECOLOGY
ISSN	0141-6707
EISSN	1365-2028
出版年	2020
卷号	58 期号:4 页码:649-657
英文摘要	Periploca angustifolia Labill., is a multipurpose shrub also used to rehabilitate drylands. It is essential to understand its phenological patterns under arid conditions. In order to understand how plants manage extreme drought, this study investigates the relationship between phenological traits of P. angustifolia Labill., water potential and climatic conditions. During two successive growing seasons (Sep 2009-Augst 2011) phenological patterns, soil water content and water potentials were measured monthly for plants of Periploca angustifolia Labill growing under rain-fed conditions (Annual rainfall = 168 mm) at the pastoretum of the Arid Regions Institute in southern Tunisia. The psi md decreased progressively and concomitantly with increasing seasonal drought, reaching the lowest values in late summer (down to -3 MPa). Water potentials of P. angustifolia Labill were affected by spatial and temporal variations in soil water content. The increased diurnal amplitude values ( increment psi > -1.3 MPa) explained the especially high biological activity of this species during the dry season. Our results clearly demonstrate that P. angustifolia Labill is a drought-tolerant species reaching low water potentials during the driest months of summer. These characteristics make this shrub as promising for rehabilitating degraded arid ecosystems.
英文关键词	drought Periploca angustifolia phenology soil water content stem physiology water relations
类型	Article
语种	英语
国家	Tunisia
收录类别	SCI-E
WOS记录号	WOS:000525982400001
WOS关键词	SOIL ; APOCYNACEAE ; STRESS ; SHRUB
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/313911
作者单位	1.Arid Reg Inst, Lab Range Ecol, Medenine 4119, Tunisia; 2.Univ Sfax, Fac Sci Sfax, Res Unity Plant Biol & Ecophysiol, Sfax, Tunisia
推荐引用方式 GB/T 7714	Dghim, Fairouz,Boukhris, Makki,Neffati, Mohamed,et al. Growth phenology and water potential patterns of Periploca angustifolia in relation to water availability[J],2020,58(4):649-657.
APA	Dghim, Fairouz,Boukhris, Makki,Neffati, Mohamed,&Chaieb, Mohamed.(2020).Growth phenology and water potential patterns of Periploca angustifolia in relation to water availability.AFRICAN JOURNAL OF ECOLOGY,58(4),649-657.
MLA	Dghim, Fairouz,et al."Growth phenology and water potential patterns of Periploca angustifolia in relation to water availability".AFRICAN JOURNAL OF ECOLOGY 58.4(2020):649-657.