干旱区生态环境知识资源中心(Arid): Salt Tolerance of Sego Supreme (TM) Plants

Arid

DOI	10.21273/HORTSCI14342-19
	Salt Tolerance of Sego Supreme (TM) Plants
	Paudel, Asmita 1; Chen, Ji Jhong 1; Sun, Youping 1; Wang, Yuxiang 2; Anderson, Richard 3
通讯作者	Sun, Youping
来源期刊	HORTSCIENCE
ISSN	0018-5345
EISSN	2327-9834
出版年	2019
卷号	54 期号:11 页码:2056-2062
英文摘要	Sego Supreme (TM) is a designated plant breeding and introduction program at the Utah State University Botanical Center and the Center for Water Efficient Landscaping. This plant selection program introduces native and adapted plants to the arid West for aesthetic landscaping and water conservation. The plants are evaluated for characteristics such as color, flowering, ease of propagation, market demand, disease/pest resistance, and drought tolerance. However, salt tolerance has not been considered during the evaluation processes. Four Sego Supreme (TM) plants [Aquilegia barnebyi (oil shale columbine), Clematis fruticosa (Mongolian gold clematis), Epilobium septentrionale (northern willowherb), and Tetraneuris acaulis var. arizonica (Arizona four-nerve daisy)] were evaluated for salt tolerance in a greenhouse. Uniform plants were irrigated weekly with a nutrient solution at an electrical conductivity (EC) of 1.25 dS.m(-1) as control or a saline solution at an EC of 2.5, 5.0, 7.5, or 10.0 dS.m(-1) for 8 weeks. After 8 weeks of irrigation, A. barnebyi irrigated with saline solution at an EC of 5.0 dS.m(-1) had slight foliar salt damage with an average visual score of 3.7 (0 = dead; 5 = excellent), and more than 50% of the plants were dead when irrigated with saline solutions at an EC of 7.5 and 10.0 dS.m(-1). However, C. fruticosa, E. septentrionale, and T. acaulis had no or minimal foliar salt damage with visual scores of 4.2, 4.1, and 4.3, respectively, when irrigated with saline solution at an EC of 10.0 dS.m(-1). As the salinity levels of treatment solutions increased, plant height, leaf area, and shoot dry weight of C. fruticosa and T. acaulis decreased linearly; plant height of A. barnebyi and E. septentrionale also declined linearly, but their leaf area and shoot dry weight decreased quadratically. Compared with the control, the shoot dry weights of A. barnebyi, C. fruticosa, E. septentrionale, and T. acaulis decreased by 71.3%, 56.3%, 69.7%, and 48.1%, respectively, when irrigated with saline solution at an EC of 10.0 dS.m(-1). Aquilegia barnebyi and C. fruticosa did not bloom during the experiment at all treatments. Elevated salinity reduced the number of flowers in E. septentrionale and T. acaulis. Elevated salinity also reduced the number of shoots in all four species. Among the four species, sodium (Na+) and chloride (Cl-) concentration increased the most in A. barnebyi by 53 and 48 times, respectively, when irrigated with saline solution at an EC of 10.0 dS.m(-1). In this study, C. fruticosa and T. acaulis had minimal foliar salt damage and less reduction in shoot dry weight, indicating that they are more tolerant to salinity. Epilobium septentrionale was moderately tolerant to saline solution irrigation with less foliar damage, although it had more reduction in shoot dry weight. On the other hand, A. barnebyi was the least tolerant with severe foliar damage, more reduction in shoot dry weight, and a greater concentration of Na+ and Cl-.
英文关键词	Aquilegia barnebyi Clematis fruticosa Epilobium septentrionale mineral nutrient Tetraneuris acaulis visual score
类型	Article
语种	英语
国家	USA ; Peoples R China
开放获取类型	gold, Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000494845500027
WOS关键词	SALINE WATER IRRIGATION ; PHYSIOLOGICAL-RESPONSES ; GROWTH ; MECHANISMS ; CULTIVARS ; NUTRITION
WOS类目	Horticulture
WOS研究方向	Agriculture
EI主题词	2019-11-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310491
作者单位	1.Utah State Univ, Dept Plants Soils & Climate, 4820 Old Main Hill, Logan, UT 84322 USA; 2.Xinjiang Agr Univ, Western Arid Reg Grassland Resources & Ecol Key L, 311 East Nongda Rd, Urumqi 830052, Xinjiang, Peoples R China; 3.Utah State Univ, Bot Ctr, 725 Sego Lily Dr, Kaysville, UT 84037 USA
推荐引用方式 GB/T 7714	Paudel, Asmita,Chen, Ji Jhong,Sun, Youping,et al. Salt Tolerance of Sego Supreme (TM) Plants[J],2019,54(11):2056-2062.
APA	Paudel, Asmita,Chen, Ji Jhong,Sun, Youping,Wang, Yuxiang,&Anderson, Richard.(2019).Salt Tolerance of Sego Supreme (TM) Plants.HORTSCIENCE,54(11),2056-2062.
MLA	Paudel, Asmita,et al."Salt Tolerance of Sego Supreme (TM) Plants".HORTSCIENCE 54.11(2019):2056-2062.