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Effects of Salinity on the Macro- and Micronutrient Contents of a Halophytic Plant Species ( Portulaca oleracea L.)

Author

Listed:
  • Gulom Bekmirzaev

    (Department of Irrigation and Melioration, Tashkent Institute of Irrigation and Agricultural Mechanization Engineers, Kori-Niyoziy str. 39, 100000 Tashkent, Uzbekistan)

  • Baghdad Ouddane

    (Environmental Physico-Chemistry (PCE), LAboratoire de Spectrochimie Infrarouge et Raman (LASIR), University of Lille, 59655 Villeneuve d’Ascq, France)

  • Jose Beltrao

    (Research Centre for Spatial and Organizational Dynamics, University of Algarve (The Gambelas Campus), 8005-139 Faro, Portugal)

  • Mukhamadkhon Khamidov

    (Department of Irrigation and Melioration, Tashkent Institute of Irrigation and Agricultural Mechanization Engineers, Kori-Niyoziy str. 39, 100000 Tashkent, Uzbekistan)

  • Yoshiharu Fujii

    (International Environmental and Agricultural Sciences, Tokyo University of Agriculture and Technology (Fuchu Campus), Tokyo 183-8509, Japan)

  • Akifumi Sugiyama

    (Research Institute for Sustainable Humanosphere (RISH), Kyoto University, Kyoto 611-0011, Japan)

Abstract

The main purpose of the two consecutive experimental studies presented here was to compare the effect of salinity on nutrients in leaves of the halophytic plant species Portulaca oleracea L. and in soil. The first experiment was conducted to study the effect of salinity on plant growth, biomass accumulation, yield, root layer development, salt accumulation, and the dynamics of changes in mineral substances in plants and soil. In the second experiment, P. oleracea seeds were sown directly into salinized soil (treated immediately before plant growth) to determine the nutrient levels in leaves and soil. Three salinity treatments (saline water solution with NaCl: T1, 5 dS m −1 ; T2, 9.8 dS m −1 ; and T3, 20 dS m −1 ) and a control treatment (T0, 1 dS m −1 ) were used in the first experiment. The soil in the second experiment was used in a previous study (performed immediately before P. oleracea growth) (salinized soil: T1, 7.2 dS m −1 ; T2, 8.8 dS m −1 ; T3, 15.6 dS m −1 ; T0, 1.9 dS m −1 ). The plants were irrigated with tap water at amounts in the range of 0.25–0.50 L/pot. Analysis of the experimental results showed that P. oleracea is resistant to salinity, is able to remove ions (400–500 kg ha −1 NaCl), and can be grown in saline soil. The results indicated that P. oleracea is able to grow in high-salinity soil. This finding was confirmed by the dry matter obtained under high-salinity conditions. Salinity stress affected nutrient uptake in leaves and soil.

Suggested Citation

  • Gulom Bekmirzaev & Baghdad Ouddane & Jose Beltrao & Mukhamadkhon Khamidov & Yoshiharu Fujii & Akifumi Sugiyama, 2021. "Effects of Salinity on the Macro- and Micronutrient Contents of a Halophytic Plant Species ( Portulaca oleracea L.)," Land, MDPI, vol. 10(5), pages 1-13, May.
    • Handle: RePEc:gam:jlands:v:10:y:2021:i:5:p:481-:d:548361
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    References listed on IDEAS

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    1. Gulom Bekmirzaev & Baghdad Ouddane & Jose Beltrao & Yoshiharu Fujii, 2020. "The Impact of Salt Concentration on the Mineral Nutrition of Tetragonia tetragonioides," Agriculture, MDPI, vol. 10(6), pages 1-10, June.
    2. Ors, Selda & Suarez, Donald L., 2017. "Spinach biomass yield and physiological response to interactive salinity and water stress," Agricultural Water Management, Elsevier, vol. 190(C), pages 31-41.
    3. Gulom Bekmirzaev & Jose Beltrao & Baghdad Ouddane, 2019. "Effect of Irrigation Water Regimes on Yield of Tetragonia Tetragonioides," Agriculture, MDPI, vol. 9(1), pages 1-9, January.
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