Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.agwat.2017.05.003 |
Spinach biomass yield and physiological response to interactive salinity and water stress | |
Ors, Selda1; Suarez, Donald L.2 | |
通讯作者 | Suarez, Donald L. |
来源期刊 | AGRICULTURAL WATER MANAGEMENT
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ISSN | 0378-3774 |
EISSN | 1873-2283 |
出版年 | 2017 |
卷号 | 190页码:31-41 |
英文摘要 | Critical shortages of fresh water throughout arid regions are forcing growers to decide among the following options, applying insufficient fresh water, causing water stress, applying saline water causing salt stress or applying some combination minimizing saline water application, causing combined water and salt stress. A comprehensive approach to manage drought and salinity is to evaluate the impact of water stress and salt stress individually and then examine their interactions on plant production. To analyze salinity and water stress responses and their interaction together on spinach growth, an experiment was conducted from April 1 to May 21, 2013, using 6 different irrigation waters at electrical conductivity (EC): 0.85, 4, 7, 9, 12, 15 dS m(-1). Soil moisture was recorded by sensors and stress treatments had the following soil water matric pressure control (-45 kPa), -200 to -300 kPa, and -400 to -500 kPa. We evaluated three replicates per treatment for yield, vegetative parameters, ion composition, and physiological parameters. The results showed that the spinach yield response to salt and water stress was very different. Spinach yield initially increased with salinity and subsequently decreased only when the irrigation water was EC 9 dS m(-1) and above (osmotic pressure of -310 kPa). In contrast, yield decreased at the first water stress level (-230 kPa) relative to control. The additional presence of salinity stress decreased the relative yield response due to water stress. Similarly under water stress the relative yield response to increasing salinity was reduced. Although no model provided good prediction of stress response, the best predictive model (relative error) was one that considered the response to multiple stresses as the product of the response to the individual stresses. Published by Elsevier B.V. |
英文关键词 | Stress Drought WUE Photosynthesis Ion composition |
类型 | Article |
语种 | 英语 |
国家 | Turkey ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000404700500004 |
WOS关键词 | SALT STRESS ; DROUGHT TOLERANCE ; STOMATAL RESPONSES ; MINERAL-CONTENT ; USE EFFICIENCY ; GROWTH ; PLANT ; DEFICIT ; LEAVES ; ION |
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/2XILL650/197159 |
作者单位 | 1.Ataturk Univ, Dept Agr Struct & Irrigat, TR-25240 Erzurum, Turkey; 2.USDA ARS, Salin Lab, 450 W Big Springs Rd, Riverside, CA 92507 USA |
推荐引用方式 GB/T 7714 | Ors, Selda,Suarez, Donald L.. Spinach biomass yield and physiological response to interactive salinity and water stress[J],2017,190:31-41. |
APA | Ors, Selda,&Suarez, Donald L..(2017).Spinach biomass yield and physiological response to interactive salinity and water stress.AGRICULTURAL WATER MANAGEMENT,190,31-41. |
MLA | Ors, Selda,et al."Spinach biomass yield and physiological response to interactive salinity and water stress".AGRICULTURAL WATER MANAGEMENT 190(2017):31-41. |
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