Biological effects in plants at action of the magnetic and electromagnetic fields induced by devices of therapeutic appointment

Influence of magnetic (MF) and electromagnetic fields (EMF), which sources are devices of therapeutic appointment, on a garden cress (Lepidium sativum L.) is studied. It is shown that at action of EMF the reliable increase in concentration of a chlorophyll A and carotinoids was noted. In experience option of "30 min." dynamics of viability of seeds doesn't change, and in experience options "1 hour" and "MF" viability of seeds increases. At influence of EMF within 30 minutes and in experience with MF increase of survival is observed, but at increase in time of influence of EPF till 1 o'clock this indicator decreases. The increase in the studied morphometric indicators in all options of experience is revealed. Variability at action of EMF of the studied morphometric indicators in skilled options is wider, and at action of MF it decreases. Instability of ontogenesis under the influence of EMF determines increase of probability of violation of ontogenetic development which was estimated in size of asymmetry of cotyledon shares.