干旱区生态环境知识资源中心(Arid): Effects of soil salinity on foxtail millet osmoregulation, grain yield, and soil water utilization under varying water conditions

Arid

DOI	10.1016/j.agwat.2023.108354
	Effects of soil salinity on foxtail millet osmoregulation, grain yield, and soil water utilization under varying water conditions
	Ma, Yuzhao; Liu, Wenwen; Qiao, Yunzhou; Qiao, Wenjun; Yang, Hong; Zhong, Yuanning; Yang, Han; Wang, Huili; Li, Yongpeng; Dong, Baodi; Liu, Mengyu
通讯作者	Dong, BD
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2023
卷号	284
英文摘要	Salinity and water deficit are major abiotic environmental stresses affecting crop quality in arid and semi-arid areas. Particularly, salinity stress induces several detrimental physiological effects on crops, including toxic ion accumulation, disturbed osmotic potential, and reduced grain yield. However, how salinity stress reduces growth loss and maintains water productivity (WP) by compensating for water conditions in foxtail millet re-mains unclear. Herein, a two-year experiment was conducted to investigate the effects of two soil water levels [W1, 45% & PLUSMN; 5% field capacity (FC); and W2, 75% & PLUSMN; 5% FC; FC, 0.34 cm3 cm -3] and ten soil salinity levels (S, 1.0-2.8 g kg-1 in 0.2 g kg-1 intervals) on foxtail millet flag-leaf osmoregulation, grain yield, and soil water utilization in the Bohai Lowland of the North China Plain. The results indicated that the plant survival rate was significantly lower at W2 than at W1 three days after sowing. Compared with W1, the Na+ (2.94-9.96% for S1.8 and S2.0) and proline contents (2.74-61.48%) at W2 were lower from the heading to the grain filling stage, whereas the K+ content (5.39-23.24% from S1.6 to S2.0, except for S1.6 at the flowering stage) was significantly higher. With increasing salt stress, the leaf water potential dropped continuously. Compared with S1.0, evapo-transpiration at S1.6, S2.2, and S2.8 decreased significantly by 8.36-72.70% at W1 (except for S1.6) and by 4.69-52.44% at W2 in both study years. In 2021, aboveground biomass decreased at W1, but remained stable at W2 in S1.0-S1.4, at the mature stage. Compared with W1, W2 increased the grain yield (1.54-110.85%) but decreased water productivity at the grain yield (WPy, 1.54-33.72%) and biomass levels (WPbm, 2.36-47.49%). Overall, the grain yield at the soil salinity levels of 1.87 and 1.91 g kg -1 (at W1 and W2, respectively) was only half that at 1.0 g kg -1 soil salinity. Altogether, this study provides guidelines for foxtail millet cultivation in saline soils.
英文关键词	Abiotic stress Salt tolerance Proline Water consumption Salinity threshold Drought
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:001018154800001
WOS关键词	WHEAT CULTIVARS ; WINTER-WHEAT ; DROUGHT ; SALT ; NITROGEN ; STRESS ; CARBON ; TOLERANCE ; SEEDLINGS ; GROWTH
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/2XILL650/395068
推荐引用方式 GB/T 7714	Ma, Yuzhao,Liu, Wenwen,Qiao, Yunzhou,et al. Effects of soil salinity on foxtail millet osmoregulation, grain yield, and soil water utilization under varying water conditions[J],2023,284.
APA	Ma, Yuzhao.,Liu, Wenwen.,Qiao, Yunzhou.,Qiao, Wenjun.,Yang, Hong.,...&Liu, Mengyu.(2023).Effects of soil salinity on foxtail millet osmoregulation, grain yield, and soil water utilization under varying water conditions.AGRICULTURAL WATER MANAGEMENT,284.
MLA	Ma, Yuzhao,et al."Effects of soil salinity on foxtail millet osmoregulation, grain yield, and soil water utilization under varying water conditions".AGRICULTURAL WATER MANAGEMENT 284(2023).