干旱区生态环境知识资源中心(Arid): Seedling salt tolerance for above ground-related traits in cowpea (Vigna unguiculata (L.) Walp)

Arid

DOI	10.1007/s10681-019-2379-4
	Seedling salt tolerance for above ground-related traits in cowpea (Vigna unguiculata (L.) Walp)
	Dong, Lingdi 1,2,3; Ravelombola, Waltram 1; Weng, Yuejin 1; Qin, Jun 1,2,3; Bhattarai, Gehendra 1; Zia, Bazgha 1; Zhou, Wei 1; Wang, Yuhai 1,2,3; Mou, Beiquan 4; Shi, Ainong 1
通讯作者	Shi, Ainong
来源期刊	EUPHYTICA
ISSN	0014-2336
EISSN	1573-5060
出版年	2019
卷号	215 期号:3
英文摘要	With poor quality of irrigation water, salt concentrations in cultivated areas keep increasing, hence preventing cowpea from being cultivated for optimal growth and development. Effects of salinity on crops are severe in semi-arid and arid regions where low rainfall does not allow salt compounds to be leached from soils. Seedling stage is one the most vulnerable stages in plant growth and development. However, to date, few if any salt-tolerant cowpea cultivars have been reported worldwide. Therefore, the objective of this study was to evaluate cowpea genotypes for salt tolerance based on the reduction of above ground-related traits. A total of 155 cowpea genotypes was phenotyped for salt tolerance at seedling stage. Salt treatments were 0mM and 200mM NaCl. The experiment design was completely randomized (CRD) with three replications per genotype and salt treatment combination, and organized in a split-plot manner. Salt stress was imposed for 2weeks and a total of 19 parameters were used for salt tolerance evaluation. Results revealed that: (1) a large variation in salt tolerance was found among the 155 cowpea genotypes; (2) salt stress significantly reduced plant height and fresh shoot biomass, but slightly increased chlorophyll content; (3) a relatively high correlation was found between plant height and fresh biomass-related parameters; (4) chlorophyll content had low correlation with plant height and fresh shoot biomass reductions, respectively; and (5) PI354686, PI353270, PI354666, and PI354842 were salt-tolerant based on the decrease in plant height and fresh shoot biomass, and PI548785, PI582466, PI339599, and 09-697 were the top performers based on chlorophyll content. These results can be used for advancing breeding programs for salt tolerance in cowpea.
英文关键词	Cowpea Vigna unguiculata Salinity Seedling Tolerance Chlorophyll content
类型	Article
语种	英语
国家	USA ; Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000459048500002
WOS关键词	GLYCINE-MAX ; ACCUMULATION ; STAGE
WOS类目	Agronomy ; Plant Sciences ; Horticulture
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215570
作者单位	1.Univ Arkansas, Dept Hort, Fayetteville, AR 72701 USA; 2.Cereal, 162 Hengshanjie St, Shijiazhuang 050035, Hebei, Peoples R China; 3.Hebei Acad Agr & Forestry Sci, 162 Hengshanjie St, Shijiazhuang 050035, Hebei, Peoples R China; 4.USDA ARS, 1636 E Alisal St, Salinas, CA 93905 USA
推荐引用方式 GB/T 7714	Dong, Lingdi,Ravelombola, Waltram,Weng, Yuejin,et al. Seedling salt tolerance for above ground-related traits in cowpea (Vigna unguiculata (L.) Walp)[J],2019,215(3).
APA	Dong, Lingdi.,Ravelombola, Waltram.,Weng, Yuejin.,Qin, Jun.,Bhattarai, Gehendra.,...&Shi, Ainong.(2019).Seedling salt tolerance for above ground-related traits in cowpea (Vigna unguiculata (L.) Walp).EUPHYTICA,215(3).
MLA	Dong, Lingdi,et al."Seedling salt tolerance for above ground-related traits in cowpea (Vigna unguiculata (L.) Walp)".EUPHYTICA 215.3(2019).