Conclusions
There was no significant difference between 100 ppm of
silver nitrate and 60 ppm concentration of nano silver on
the shoot silver concentration. Therefore, permeability of
nano silver is far greater than that of silver nitrate. The
reason of this matter is the small size of nano particle,
which causes more adhesion of nano particles to plant
tissues. By considering the lesser use of silver in nano
silver, this treatment can be used instead of other combinations
of silver. However, the nano silver effect compared
with other silver combinations on reducing the ethylene
effect needs more researches.