干旱区生态环境知识资源中心(Arid): Photosynthesis and salt cations adsorption response of spring maize (Zea mays L.) to salinity stress caused by different drip irrigation regimes in an arid saline area, Northwest China

Arid

DOI	10.1111/jac.12601
	Photosynthesis and salt cations adsorption response of spring maize (Zea mays L.) to salinity stress caused by different drip irrigation regimes in an arid saline area, Northwest China
	Cheng, Yu; Zhang, Tibin; Qiao, Ruonan; Yan, Sihui; Luo, Min; Wang, Chun; Zhang, Tonggang; Dong, Qin'ge; Feng, Hao
通讯作者	Zhang, TB
来源期刊	JOURNAL OF AGRONOMY AND CROP SCIENCE
ISSN	0931-2250
EISSN	1439-037X
出版年	2022
卷号	208 期号:5 页码:693-708
英文摘要	Salinity is one of the most decisive environmental factors limiting crop productivity, especially in arid and semi-arid regions. The objective of this study was to evaluate the growth depression of spring maize (Zea mays L.) due to salinity stress caused by different drip irrigation regimes in an arid saline area. A two-year field experiment was conducted in the Hetao Irrigation District, northwest China in 2019 and 2020. The study soil was moderately saline with ECe (electrical conductivity of saturated soil extract) of 8.04 dS m(-1). Three threshold values of soil matric potential (SMP), -10, -30, and -50 kPa, were used to trigger a 10-20 mm drip irrigation of spring maize. Nine plots were arranged in a randomized block design (with triplication for each SMP level). Results showed that the lower soil salinity caused by higher SMP levels significantly increased crop photosynthetic capacity and reduced salt cations (K+, Na+, Ca2+, Mg2+) concentrations in plant organs, thereby increasing aboveground biomass and grain yields. Gas exchange parameter values first increased and then decreased in the R1-R5 stage (76-115 DAP) except for net photosynthetic rate (P-n) of -10 kPa treatment. Four salt cations in the aboveground parts were mainly distributed in stems and leaves, followed by grains. However, there was no significant difference in aboveground cationic accumulation among treatments. Correlation analysis indicated that gas exchange parameter values were negatively correlated with concentrations of K+, Na+, Ca2+, and Mg2+ in aboveground plant organs at harvest, indicating that P-n could quantitatively reflect the salt ionic toxicity in crops to a large extent. Considering photosynthesis, salt cations absorption, and water use efficiency, an SMP threshold of -30 kPa is recommended for drip irrigation of maize in this arid saline condition. These findings can provide a theoretical basis and technical reference for the promotion of mulched drip irrigation under the arid saline condition.
英文关键词	drip irrigation gas exchange parameters growth salt cations soil matric potential
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000800860700001
WOS关键词	SOIL-SALINITY ; GROWTH ; WATER ; YIELD ; WHEAT ; TOLERANCE ; EVAPOTRANSPIRATION ; DEGRADATION ; INDEX
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/2XILL650/393274
推荐引用方式 GB/T 7714	Cheng, Yu,Zhang, Tibin,Qiao, Ruonan,et al. Photosynthesis and salt cations adsorption response of spring maize (Zea mays L.) to salinity stress caused by different drip irrigation regimes in an arid saline area, Northwest China[J],2022,208(5):693-708.
APA	Cheng, Yu.,Zhang, Tibin.,Qiao, Ruonan.,Yan, Sihui.,Luo, Min.,...&Feng, Hao.(2022).Photosynthesis and salt cations adsorption response of spring maize (Zea mays L.) to salinity stress caused by different drip irrigation regimes in an arid saline area, Northwest China.JOURNAL OF AGRONOMY AND CROP SCIENCE,208(5),693-708.
MLA	Cheng, Yu,et al."Photosynthesis and salt cations adsorption response of spring maize (Zea mays L.) to salinity stress caused by different drip irrigation regimes in an arid saline area, Northwest China".JOURNAL OF AGRONOMY AND CROP SCIENCE 208.5(2022):693-708.