Mitotic analyses indicated a positive influence of EMF on the rate of cell proliferation in pretreated seeds with 3mT intensity for a 4h exposure time,
and showed decrease in chromosomal aberrations[17].
Racuciu (2006) observed that the magnetic field stimulated the shoot development of maize and led to an increase in germinating energy, germination, fresh weight and shoot length[15].
still the mechanism of action of magnetic field on plants are not well known .
Beneficial effects of magnetic fields on different crops and yields have been reported .
An increase of crops of different species subjected to magnetic field has been found.
EMFs in both extremely low frequency (ELF) and radio frequency (RF) ranges activate the cellular stress response, a protective mechanism that induces the expression of stress response genes.
EM fields bring about oxidative stress; they increase in the activity concentration and lifetime of free radicals.