Most angiosperms — and all major crops — are unable to withstand high concentrations of sodium chloride. Soils containing concentrations of salt amounting to a few hundred millimolar occur naturally, of course, and saline land is estimated to represent between 2.3 and 6.4% of global land surface [1]. As much as 13% of cultivated land is thought to be salt-affected. In some instances, however, a...