connected 58 volts across a branch of two young
citrus trees causing a current of approximately 1.6 milliamperes to flow
through the branches. The direct current potential was applied for 28
days with the negative pole connected to the branch tip. The treated
branches exhibited accelerated growth and greater leaf density than
untreated branches. However, some leaf abnormality was present. The ripe
fruit was dropped from the treated branches, but unripe fruit remained on
the branch.