To carry out this investigation, we evaluated in vivo,
during five weeks and under greenhouse conditions, the
effect of chitosan as a coating on corn seeds on the
germination and growth (thickness of stems, total length
of the leaves and stems) of seedlings under abiotic stress
conditions. After the fifth week of growing, it was
evaluated qualitatively (in vitro) the potential effect of
chitosan on the leaves of maize seedlings during their
growth, to determine if the crop triggers defense mechanisms
against fungal development, resulting from biotic
stress caused by the imposition of acid and alkaline pH to
soil, as well as drought and moisture conditions present
in farmland, which is a serious problem worldwide due to
the high levels of pollutants and rainfall fluctuations that
have occurred in recent years.