-

This expriment was carried out to determine the effect of sodium chloride (NaCl) on absorption and transportation of mineral elements in five
native of Iran cultivars of melon (Cucumis melo L.) namely: "Abbas shuri", "Suski", "Zarde Karaj", "Khaghani" and "Tashkandi". Half-strenght Hogaland
solution with final salinity levels (0, 2.5, 5, 7.5 gr/lit, NaCI) were used for a period of 75 days. Increase in salinity concentration, increased Na+, CI-,
Na+jK- ratio and decreased K+, Ca2+, Mg2+ in leaf and root tissues. CI¬(except in "Tashkandi") , K+, Ca2+, and Mg2+ contents in leaves were higher
than those in root tissues, but Na+ and Na+jK+ in leaves were lower than those in roots. The highest Na+jK+ ratio in leaves, was observed in "Abbas
shuri" and "Khaghani", while the lowest ratios were observed in "Tashkandi",
"Zarde Karaj" while "Suski" respectively. According to the above results, it seems that cultivar "Suski" exhibits a ni_her salt tolerance than the other
treated cultivars.