Uptake and distribution of K, Na and S ions in salt-treated seedlings of mango

Seedlings of 24 mango germplasm were screened for salt tolerance under polyhouse condition. The seedlings were daily irrigated with Hoagland solution containing either no or 4.5 dS/m salt solution (NaCl + Na₂SO₄). Six germplasm which tolerated salt concentration (EC) 4.5 dS/m were further tested for various concentrations of salt, i.e. 0, 4.5 7.5 and 9.0 dS/m. The results showed that Na accumulation was greater in roots compared to leaves and stems of seedlings of all the germplasm. Of the 6 varieties, Hybrid 15/.1 showed minimum Na and S content in various parts of seedlings. Thus, Hybrid 15/1 may be recommended as a salt tolerant rootstock for mango cultivars in salt-affected soils.