Acta Agriculturae Boreali-Sinica ›› 2025, Vol. 40 ›› Issue (S1): 130-137. doi: 10.7668/hbnxb.20195244

Special Issue: Cucumber Vegetables Cultivation & Physiology

• Tillage & Cultivation·Physiology & Biochemistry • Previous Articles     Next Articles

Effects of Different Concentrations of NaCl on the Growth, Development and Quality of Cucumber

TENG Wenli1,2,3, LI Ning1,2, WU Zhanhui1,2, LIU Mingchi1,2, WANG Liping3, LIU Ning1,2   

  1. 1 Key Laboratory of Urban Agriculture in North China,Ministry of Agriculture and Rural Affairs,Beijing Vegetable Research Center,Beijing Academy of Agriculture and Forestry Sciences,Beijing 100097,China
    2 State Key Laboratory of Vegetable Biobreeding,National Engineering Research Center for Vegetables,Beijing 100097,China
    3 College of Landscape and Ecological Engineering,Hebei University of Engineering,Handan 056038,China
  • Received:2024-06-24 Published:2025-12-29

Abstract:

In order to investigate the effects of salt stress on the growth,development and quality of facility cucumbers,salt treatment was carried out on Zhongnong 126 cucumber in the multi-storey glass greenhouse of Vegetable Research Center of Beijing Academy of Agriculture and Forestry Sciences from 2023 to 2024.Four treatments of 0(control),25,50 and 100 mmol/L NaCl were added into the nutrient solution to analyze the effects of different concentrations of NaCl treatment on growth and development,photosynthetic characteristics,antioxidant enzyme activity,fruit quality and yield of cucumber.The results showed that with the increase of NaCl concentration,cucumber plant height decreased,stem diameter had no significant difference,and leaf area decreased.Leaf photosynthetic pigment content,Net photosynthetic rate(Pn), stomatal conductance(Gs), transpiration rate(Tr), maximum photochemical efficiency(Fv/Fm),photochemical quenching coefficient(qP)decreased gradually. Intercellular CO2 concentration(Ci)gradually increased; Non-photochemical quenching coefficient(NPQ) increased first and then decreased, and was highest under T2 treatment. The activities of Superoxide dismutase(SOD), peroxidase(POD), catalase(CAT)increased and then decreased.Except SOD,the activities of POD and CAT were the highest at 25 mmol/L NaCl concentration,which were 38.73% and 95.18% higher than CK,respectively.The content of H2O2 increased gradually.With the increase of NaCl concentration,the melon length shortened and the melon head pointed,and the fruit deformity rate increased.The vitamin C content increased first and then decreased, and it performed best under T1 treatment, which was significantly better than the control group. There was no significant difference in soluble solid content among different treatments.Salt treatment significantly reduced the yield of cucumber by 38.89%-81.35% compared with control.Based on the comprehensive evaluation of yield and quality,it is suggested that Zhongnong 126 cucumber should be treated with 25 mmol/L NaCl,which can significantly improve fruit quality.Subsequent research will focus on optimizing cultivation techniques,improving plant salt tolerance while ensuring quality,achieving yield improvement,and providing technical support for high-quality cucumber production.

Key words: Cucumber, Salt stress, Growth and development, Quality

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Cite this article

TENG Wenli, LI Ning, WU Zhanhui, LIU Mingchi, WANG Liping, LIU Ning. Effects of Different Concentrations of NaCl on the Growth, Development and Quality of Cucumber[J]. Acta Agriculturae Boreali-Sinica, 2025, 40(S1): 130-137. doi: 10.7668/hbnxb.20195244.

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