SHA Fengxia,ZHOU Zihan,GUAN Zhendan,et al.Effects of Salt and Alkali Stress on the Physiological Traits of ‘Ningqi Cai No.1’[J].Northern Horticulture,2026,(3):43-51.[doi:10.11937/bfyy.20252574]
盐、碱胁迫对“宁杞菜1号”生理特性的影响
- Title:
- Effects of Salt and Alkali Stress on the Physiological Traits of ‘Ningqi Cai No.1’
- 文章编号:
- 1001-0009(2026)03-0043-09
- Keywords:
- ‘Ningqi Cai No.1’; saline-alkali stress; chlorophyll fluorescence parameters; physiological characteristics
- 分类号:
- S567.1
- 文献标志码:
- A
- 摘要:
- 以二年生盆栽“宁杞菜1号”为试材,施加100、200、300 mmol·L-1 NaCl;150、200、250 mmol·L-1 NaHCO3,进行胁迫处理,对照CK1、CK2浇清水,测定了叶绿素荧光指标和抗氧化酶活性等生理指标,并通过主成分分析进行综合评价,以期为宁夏菜用枸杞的高效栽培和综合开发利用提供参考依据。结果表明:盐碱胁迫下PSⅡ光能转化效率稳定,但碱胁迫显著降低电子传递速率(ETR);脯氨酸和可溶性蛋白质含量随胁迫加剧显著积累;抗氧化酶活性增强,其中抗坏血酸过氧化物酶(APX)在碱胁迫下响应最显著。主成分分析显示,盐胁迫下300 mmol·L-1 NaCl处理、碱胁迫下200 mmol·L-1 NaHCO3和250 mmol·L-1 NaHCO3处理综合得分较高,表明“宁杞菜1号”耐盐碱性较强。“宁杞菜1号”在盐碱胁迫下表现出较好的耐受性,光合作用系统相对稳定,抗氧化防御系统被激活。
- Abstract:
- Two-year-old potted ‘Ningqi Cai No.1’ was used as the test material,subjected to stress treatments with 100 mmol·L-1 NaCl,200 mmol·L-1 NaCl,300 mmol·L-1 NaCl;150 mmol·L-1 NaHCO3,200 mmol·L-1 NaHCO3,and 250 mmol·L-1 NaHCO3,with controls CK1 and CK2 watered with clean water.Physiological indicators such as chlorophyll fluorescence parameters and antioxidant enzyme activities were measured,and a comprehensive evaluation was conducted through principal component analysis,in order to provide references for the efficient cultivation and comprehensive utilization of Ningxia vegetables wolfberry.The results showed that under saline-alkali stress,the PSⅡ photochemical efficiency remained stable,but alkali stress significantly reduced the electron transport rate (ETR);proline and soluble protein contents accumulated significantly with increasing stress;antioxidant enzyme activities (APX,SOD,POD) were enhanced,with APX showing the most pronounced response under alkali stress.Principal component analysis showed that under salt stress,treatment with 300 mmol·L-1 NaCl,and under alkali stress,treatments with 200 mmol·L-1 NaHCO3 and 250 mmol·L-1 NaHCO3 scored higher in comprehensive evaluation,indicated that ‘Ningqi Cai No.1’ had strong saline-alkali tolerance.‘Ningqi Cai No.1’ exhibited good tolerance under saline-alkali stress,with a relatively stable photosynthetic system and an activated antioxidant defense system.
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备注/Memo
第一作者简介:沙凤霞(2000-),女,硕士研究生,研究方向为果树学。E-mail:2182432530@qq.com.责任作者:冯美(1970-),女,硕士,教授,现主要从事果树栽培及栽培生理等研究工作。E-mail:feng_m @ nxu.edu.cn.基金项目:宁夏自然基金资助项目(2024AAC03087)。收稿日期:2025-07-14