According to these and previous results (Balibrea et al., 1999;
P´erez-Alfocea et al., 2002; Parra, 2002), the method of haloconditioning
seems to increase salt tolerance in tomato throughout
the induction of the adaptive component. Although the method
is easy to apply homogeneously to a high number of plants, some
of the treatments provoked low seedling viability and the possibility
exists that the most tolerant individuals are being selected,
which should be rare since the original population was a commercial
F1 hybrid. The study of the horizontal transmission of
the observed salt tolerance could help to explain the genetic
or epigenetic basis of the presumably induced adaptation.