Research on genotype difference of growth and mineral nutrition balance of wheat under NaCl stress

The effect of NaCl stress on growth and mineral nutrition contents of different wheat varieties was investigated. The results showed that, comparing with CK, NaCl stress decreased fresh and dry weights of shoot and root and contents of K+ and Mg2+ of root, decreased K+ and Mg2+ contents of shoot under 200mmol/L NaCl treatment, increased Na +contents of shoot and root and Ca2+ contents of root;Ca2+ contents of shoot of 50mmol/L NaCl decreased and that of 200mmol/L increased. Na+ contents of shoot were highly correlated with biomass. The order of salt tolerance of four wheat varieties was: J9428LK7LK6J411.