干旱区生态环境知识资源中心(Arid): Relative Salt Tolerance of Four Herbaceous Perennial Ornamentals

Arid

DOI	10.3390/horticulturae5020036
	Relative Salt Tolerance of Four Herbaceous Perennial Ornamentals
	Hooks, Triston; Niu, Genhua
通讯作者	Niu, GH (corresponding author), Texas A&M Agrilife Res, El Paso, TX 79927 USA.
来源期刊	HORTICULTURAE
EISSN	2311-7524
出版年	2019
卷号	5 期号:2
英文摘要	Salt tolerant ornamental plants can be irrigated with alternative water sources that are typically saline as a sustainable practice for urban landscaping, especially in arid and semi-arid regions. However, the salt tolerance of many ornamentals is not known. An eight-week greenhouse experiment was conducted to assess the relative salt tolerance of four perennial ornamentals, 'Angelina' (Sedum rupestre), 'Autumn Joy' (S. telephium), 'Blue Spruce' (S. reflexum), and 'Blue Daze' (Evolvulus glomeratus). The plants were grown in pots with potting mix substrate and irrigated with control or saline solutions. The electrical conductivities (EC) of the saline solutions were 5.0 and 10.0 mS/cm. Data collected included relative shoot, root, and total dry weight (DW), visual score, shoot tissue concentrations of Na+, Cl-, K+, and Ca2+, and the K+/Na+ ratio. There were significant differences in treatment and varieties for all response variables, and some interactions were also significant, indicating different responses to salinity for the four varieties. Shoot, root, and total DW decreased with increasing salinity for all varieties. Visual score was highest in Autumn Joy and Blue Spruce when treated with EC5 and EC10 and lowest in Angelina and Blue Daze, the latter of which showed symptoms of moderate foliar damage including leaf necrosis, or burn, due to salt stress. The concentrations of Na+ and Cl- in the shoot tissue increased with increasing salinity while K(+)and Ca2+ and the K+/Na+ ratio tended to decrease. Of the four varieties of herbaceous perennial ornamentals evaluated in this study, Autumn Joy and Blue Spruce were considered the most relatively salt tolerant while Angelina and Blue Daze were least tolerant.
英文关键词	ornamentals herbaceous perennials salt tolerance salinity
类型	Article
语种	英语
开放获取类型	gold, Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000474247700010
WOS关键词	PLANT-TISSUE ; GREEN ROOF ; SALINITY ; SECURITY ; CHLORIDE
WOS类目	Horticulture
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/369867
作者单位	[Hooks, Triston; Niu, Genhua] Texas A&M Agrilife Res, El Paso, TX 79927 USA
推荐引用方式 GB/T 7714	Hooks, Triston,Niu, Genhua. Relative Salt Tolerance of Four Herbaceous Perennial Ornamentals[J],2019,5(2).
APA	Hooks, Triston,&Niu, Genhua.(2019).Relative Salt Tolerance of Four Herbaceous Perennial Ornamentals.HORTICULTURAE,5(2).
MLA	Hooks, Triston,et al."Relative Salt Tolerance of Four Herbaceous Perennial Ornamentals".HORTICULTURAE 5.2(2019).