干旱区生态环境知识资源中心(Arid): Physiological performance of Tabebuia aurea seeds subjected to abiotic stresses

Arid

DOI	10.1590/1983-21252023v36n423rc
	Physiological performance of Tabebuia aurea seeds subjected to abiotic stresses
	Medeiros, Hohana L. de S.; Pereira, Kleane T. O.; Torres, Salvador B.; Benedito, Clarisse P.; Couto, Jorge R. S. do
通讯作者	Medeiros, HLD
来源期刊	REVISTA CAATINGA
ISSN	0100-316X
EISSN	1983-2125
出版年	2023
卷号	36 期号:4 页码:962-970
英文摘要	-Seeds subjected to abiotic stresses may have their physiological performance compromised, impairing the multiplication of species. Thus, the objective was to evaluate the germination and initial development of Tabebuia aurea seedlings subjected to water and salt stresses. Water stress was simulated with two osmotic agents (PEG 6000 and mannitol) at five osmotic potentials (0.0, -0.2, -0.4, -0.6 and -0.8 MPa). For salt stress, three osmotic agents (NaCl, KCl and CaCl2) were used at five concentrations (0, 6, 12, 18 and 24 dS m-1). The experiments were conducted under a completely randomized experimental design, with four replicates of 25 seeds, in a factorial scheme (osmotic agents x potentials), and the data were subjected to analysis of variance and regression. The variables analyzed were germination, first germination count, germination speed index, root and shoot length, and seedling root and shoot dry mass. The results showed that water and salt stresses reduced the germination and vigor of T. aurea seeds, with water stress being more harmful to the species, especially when induced by PEG 6000. Of the salts used, the one that most harmed the species was CaCl2, followed by NaCl and KCl.
英文关键词	Bignoniaceae Salinity Water stress Semi-arid region
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:001082948400023
WOS关键词	WATER ; GERMINATION ; PLANT
WOS类目	Agronomy
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/2XILL650/398414
推荐引用方式 GB/T 7714	Medeiros, Hohana L. de S.,Pereira, Kleane T. O.,Torres, Salvador B.,et al. Physiological performance of Tabebuia aurea seeds subjected to abiotic stresses[J],2023,36(4):962-970.
APA	Medeiros, Hohana L. de S.,Pereira, Kleane T. O.,Torres, Salvador B.,Benedito, Clarisse P.,&Couto, Jorge R. S. do.(2023).Physiological performance of Tabebuia aurea seeds subjected to abiotic stresses.REVISTA CAATINGA,36(4),962-970.
MLA	Medeiros, Hohana L. de S.,et al."Physiological performance of Tabebuia aurea seeds subjected to abiotic stresses".REVISTA CAATINGA 36.4(2023):962-970.