Abstract
The influence of NaCl on ions accumulation was investigated in panicle, leaf sheath and flag leaf of two rice genotypes differing in salt tolerance. In comparison, Na + content in all part of sensitive cultivar (IR29) was more than tolerant one (FL485) under salt condition. There was a significant (P ≤ 0.01) reduction in flag leaf, leaf sheath and panicle K+ concentration in both cultivars result in salt treatment. Salinization of the medium caused a significant accumulation of C1 - ions in all parts of stressed IR29 especially in flag leaf and leaf sheath in compare to their control treatment. Opposite to that observed in stressed IR29 Cl - accumulation, a marked decline was found during experiment in all part of salt-tolerant cultivar FL485 except in leaf sheath. Ca2+ accumulation in tolerant FL485 cv. was significantly more than sensitive IR29 cv. at all part of plant. Upon salinization, the Mg 2+ content of leaf sheath and flag leaf of both cultivars significantly reduced in contrast to those control treatment, while no significant changes was observed in Mg2+ panicle concentration of both cultivars.
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