In the first series of experiments the roots exposed to the
electric field were growing, gravitropically downward.
When the field was disconnected, the roots were allowed
to grow further and they continued evidently undisturbed
growth downward. Anatomical observations of the roots
sampled immediately after the electric field had been shut
off and after 24 h from that moment showed that there
was no variation in the RAM cellular structure in comparison
with the control