干旱区生态环境知识资源中心(Arid): Effects of oxygenated brackish water on germination and growth characteristics of wheat

Arid

DOI	10.1016/j.agwat.2020.106520
	Effects of oxygenated brackish water on germination and growth characteristics of wheat
	Zhu Mengjie; Wang Quanjiu; Sun Yan; Zhang Jihong
通讯作者	Wang, QJ ; Sun, Y (corresponding author), Xian Univ Technol, State Key Lab Ecohydraul Northwest Arid Reg China, Xian, Peoples R China.
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2021
卷号	245
英文摘要	The long-term utilization of brackish water for irrigation in arid areas will decrease the oxygen content required for root growth, leading to the deterioration of soil environment in the root zone and the inhibition of plant growth. This study investigated the effects of oxygenated brackish water on the physiological characteristics of seed germination and seedling growth characteristics of spring wheat. The dissolved oxygen (DO) of 20 mg.l(-1) in brackish water had a significant promotion effect on the seed germination and seedling growth. Specifically, at this DO concentration of 20 mg.l(-1), the germination rate, germination potential, germination index, vigor index, and plant height on the 23rd day after sowing of wheat seeds were significantly higher than those of brackish water treatment (CK). Furthermore, compared with CK, the alpha-amylase activity in wheat seeds was significantly increased. Germination rate could be used as the quantitative evaluation index for wheat seed germination under the condition of oxygenated brackish water irrigation. According to the relationship between germination rate and DO concentration, the DO concentration with the maximum germination rate was 19 mg.l(-1). During the wheat seedling growth period, compared with CK, the oxygenated brackish water with DO concentration of 20 mg.l(-1) significantly increased the contents of soluble sugar and soluble protein in the leaves, whereas significantly decreased the proline content. Soluble sugar content was selected as the quantitative evaluation index for wheat seedling growth. The electrical conductivity and the activities of alkaline phosphatase and nitrate reductase in the root zone soil were significantly influenced. Thus, the oxygenation of brackish water with appropriate DO concentration could effectively improve the salt stress caused by brackish water irrigation. These results provide an effective method for the safe and efficient utilization of brackish water.
英文关键词	Dissolved oxygen Germination rate Oxygenated brackish water Physiological index Wheat
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000606744200008
WOS关键词	IRRIGATION WATER ; DRIP IRRIGATION ; HEAVY CLAY ; SOIL ; AERATION ; NITRATE ; TOMATO ; YIELD ; COTTON
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/347637
作者单位	[Zhu Mengjie; Wang Quanjiu; Sun Yan; Zhang Jihong] Xian Univ Technol, State Key Lab Ecohydraul Northwest Arid Reg China, Xian, Peoples R China
推荐引用方式 GB/T 7714	Zhu Mengjie,Wang Quanjiu,Sun Yan,et al. Effects of oxygenated brackish water on germination and growth characteristics of wheat[J],2021,245.
APA	Zhu Mengjie,Wang Quanjiu,Sun Yan,&Zhang Jihong.(2021).Effects of oxygenated brackish water on germination and growth characteristics of wheat.AGRICULTURAL WATER MANAGEMENT,245.
MLA	Zhu Mengjie,et al."Effects of oxygenated brackish water on germination and growth characteristics of wheat".AGRICULTURAL WATER MANAGEMENT 245(2021).