Abstract
The salinity tolerance and ion transport of 2-month-old seedlings of stone pine (Pinus pinea L.) grown in hydroponic solution containing various concentrations of NaCl (0–100 mM) were studied. The presence of salt of up to 100 mM did not significantly reduce growth. Seedling hydration was insensitive to salinity. High salt concentrations reduced K+ and Ca2+ uptake, root accumulation, and export to shoots. Na+ and Cl− ions, representing the major part of the ionic uptake, were effectively compartmentalized in vacuoles. We concluded that seedlings of stone pine cultivated hydroponically were highly tolerant to salt concentrations of up to 100 mM for a culture period of 38 days. This tolerance was associated with the accumulation of Na+ and Cl− ions in the shoots.
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Communicated by J. Franklin.
An erratum to this article can be found at http://dx.doi.org/10.1007/s11738-010-0620-9
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Khaldi, A., Ammar, R.B., Woo, S.Y. et al. Salinity tolerance of hydroponically grown Pinus pinea L. seedlings. Acta Physiol Plant 33, 765–775 (2011). https://doi.org/10.1007/s11738-010-0601-z
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DOI: https://doi.org/10.1007/s11738-010-0601-z