干旱区生态环境知识资源中心(Arid): Germination and vigour in genotypes of forage sorghum at different levels of water and salt stress

Arid

DOI	10.5433/1679-0359.2020v41n5Supl1p1975
	Germination and vigour in genotypes of forage sorghum at different levels of water and salt stress
	de Lima Nunes, Luma Rayane; Cruz, Miller Clementino; Pinheiro, Charles Lobo; de Sousa, Geocleber Gomes; Dutra, Alek Sandro
通讯作者	Nunes, LRD
来源期刊	SEMINA-CIENCIAS AGRARIAS
ISSN	1676-546X
EISSN	1679-0359
出版年	2020
卷号	41 期号:5 页码:1975-1986
英文摘要	Salinity and water deficiency are abiotic factors which have a strong impact on agricultural activities, especially in arid and semi-arid regions. The aim of this research was to analyse the tolerance of two genotypes of forage sorghum, EA 116 and BRS Ponta Negra, to different levels of water and salt stress during germination. The conditions of water and salt stress were simulated by moistening the substrate with a solution of mannitol and of sodium chloride (NaCl) respectively, with the water potential adjusted to 0 (distilled water), -0.1, -0.2, -0.3, -0.4, -0.5 and -0.6 MPa. The variables under analysis were germination percentage, first count, germination speed index, shoot and root length, seedling dry weight, electrolyte leakage and leaf Na+/K+ ratio. The experiment was conducted in a completely randomised design, and distributed in a 2 (genotypes) x 2 (stress condition) x 7 (osmotic potential) factorial scheme, with four replications. The EA 116 and BRS Ponta Negra genotypes show greater tolerance to water stress. The EA 116 cultivar maintained germination under water stress from 0 to -0.6 MPa and saline stress from 0 to -0.4 MPa.
英文关键词	Sorghum bicolor Homeostasis Tolerance Abiotic stress
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000573230300010
WOS关键词	SEEDS
WOS类目	Agriculture, Multidisciplinary
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/2XILL650/326531
作者单位	[de Lima Nunes, Luma Rayane; Pinheiro, Charles Lobo] Univ Fed Ceara, Programa Posgrad Fitotecnia Agron, Curso Doutorado, Fortaleza, Ceara, Brazil; [Cruz, Miller Clementino] Univ Integracao Int Lusofonia Afro Brasileira, UNILAB, Redencao, CE, Brazil; [de Sousa, Geocleber Gomes] UNILAB, Redencao, CE, Brazil; [Dutra, Alek Sandro] Univ Fed Ceara, Fortaleza, Ceara, Brazil
推荐引用方式 GB/T 7714	de Lima Nunes, Luma Rayane,Cruz, Miller Clementino,Pinheiro, Charles Lobo,et al. Germination and vigour in genotypes of forage sorghum at different levels of water and salt stress[J],2020,41(5):1975-1986.
APA	de Lima Nunes, Luma Rayane,Cruz, Miller Clementino,Pinheiro, Charles Lobo,de Sousa, Geocleber Gomes,&Dutra, Alek Sandro.(2020).Germination and vigour in genotypes of forage sorghum at different levels of water and salt stress.SEMINA-CIENCIAS AGRARIAS,41(5),1975-1986.
MLA	de Lima Nunes, Luma Rayane,et al."Germination and vigour in genotypes of forage sorghum at different levels of water and salt stress".SEMINA-CIENCIAS AGRARIAS 41.5(2020):1975-1986.