Remember, this is just a rough test of the actual damage. Some damage that occurred last winter to the shoots and trunk may not show up until June and some buds may still be damaged later on this spring. Many plants were not hardened sufficiently when the deep, early cold hit in September. Cold temperatures in October followed by unseasonably warm temperatures in November didn't help either. USDA worked on this problem some time ago.
Most vegetables show a decrease in yield with increasing salt levels.
There is little difference in tolerance among cultivars within kinds of vegetables, nor does it make much difference what kind of salt is involved. Salt tolerance of some common vegetables. In general, yields of most crops will be affected when salinity levels reach 4 to 8 ECe. Some plants do well in low light levels, some in high. Foliage plants are easier to grow in the home because the tolerate the lower levels of light most homes have.