Arid
DOI10.1080/15324982.2017.1284944
Candidate halophytic grasses for addressing land degradation: Shoot responses of Sporobolus airoides and Paspalum vaginatum to weekly increasing NaCl concentration
Pessarakli, Mohammad1; Breshears, David D.2; Walworth, James3; Field, Jason P.2; Law, Darin J.2
通讯作者Pessarakli, Mohammad
来源期刊ARID LAND RESEARCH AND MANAGEMENT
ISSN1532-4982
EISSN1532-4990
出版年2017
卷号31期号:2页码:169-181
英文摘要

In many arid and semiarid regions worldwide, high levels of soil salinity is a key driver of land degradation, as well as a key impediment to re-establishing plant cover. Combating land degradation and erosion associated with soil salinity requires experimental determination of plant species that can grow in soils with high levels of salinity and can be used to re-establish plant cover. Herein, we evaluated the responses of untested candidate cultivars of two halophytic grass species to high soil salinity: alkali sacaton (Sporobolus airoides Torr.) and seashore paspalum (Paspalum vaginatum Swartz). We evaluated the growth responses of both species in a greenhouse under control (no-salt) and various levels of NaCl salinity (EC 8, 16, 24, 32, 40, and 48dSm(-1)) using Hoagland solution in a hydroponics system in a randomized complete block design trial. At all salinity levels, sacaton grass had a greater shoot height, shorter root length, lower shoot fresh and dry weights, and poorer color and general quality compared to seashore paspalum. The shoot fresh and dry weights of both grasses were greatest at the low to medium levels of salinity, with the greatest response observed at EC 16dSm(-1). At the highest level, salinity significantly reduced shoot fresh and dry weights of both grasses. Because growth of both halophytic species exhibited high tolerance to salinity stress and were stimulated under low to medium levels of salinity, both species could be considered suitable candidates for re-establishing plant cover in drylands to combat desertification and land degradation associated with high levels of soil salinity.


英文关键词Alkali sacaton grass salt stress seashore paspalum true halophyte wind erosion
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000399546000005
WOS关键词SALT TOLERANCE ; SALINITY TOLERANCE ; SEMIARID LANDSCAPES ; STRESS TOLERANCE ; GROWTH-RESPONSES ; PLANTS ; DESERTIFICATION ; BERMUDAGRASS ; GRASSLAND ; SALTGRASS
WOS类目Environmental Sciences ; Soil Science
WOS研究方向Environmental Sciences & Ecology ; Agriculture
来源机构University of Arizona
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/197552
作者单位1.Univ Arizona, Sch Plant Sci, Coll Agr & Life Sci, Forbes Bldg,Room 303,1140 E South Campus Dr, Tucson, AZ 85721 USA;
2.Univ Arizona, Sch Nat Resources & Environm, Coll Agr & Life Sci, Tucson, AZ USA;
3.Univ Arizona, Dept Soil Water & Environm Sci, Coll Agr & Life Sci, Tucson, AZ USA
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GB/T 7714
Pessarakli, Mohammad,Breshears, David D.,Walworth, James,et al. Candidate halophytic grasses for addressing land degradation: Shoot responses of Sporobolus airoides and Paspalum vaginatum to weekly increasing NaCl concentration[J]. University of Arizona,2017,31(2):169-181.
APA Pessarakli, Mohammad,Breshears, David D.,Walworth, James,Field, Jason P.,&Law, Darin J..(2017).Candidate halophytic grasses for addressing land degradation: Shoot responses of Sporobolus airoides and Paspalum vaginatum to weekly increasing NaCl concentration.ARID LAND RESEARCH AND MANAGEMENT,31(2),169-181.
MLA Pessarakli, Mohammad,et al."Candidate halophytic grasses for addressing land degradation: Shoot responses of Sporobolus airoides and Paspalum vaginatum to weekly increasing NaCl concentration".ARID LAND RESEARCH AND MANAGEMENT 31.2(2017):169-181.
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