In this study, green round poles of Populus nigra L.var.italica were treated with Celcure by using Tire - Tube method.After felling and sizing trees, thick - jolly rancher filled gummies end of poles (about 15 cm.) were debarked and a section of tire inner Tube was fastened around the debarked end of the fresh - cut poles and bound tightly with rubber bands and the upper end of the tube was connected to the viqua-f4 elevated solution container.
Then the poles installed on slope and let them to absorb the solution.The results showed that sapwoods were completely penetrated but hartwood less after 8-24 hrs.