Grafting Method - Wedge or Cleft Grafting
Wedge or Cleft Grafting
This method is generally used in
the propagation of deciduous fruits and top working older trees of inferior
varieties. Branches of the rootstock 1.25-5 cm thick or even larger are cut at
the top, and a vertical split 5-8 cm deep id made in the center of the stub
with a heavy chisel or knife.
The split is kept apart until scion containing at
least three buds is inserted. The basal end of the scion is cut into a long
sloping wedge about 5 cm long. The side of the wedge which is to face outward
is made slightly wider than the inside edge. One scion is inserted in each side
of the split. After adjustments of the scion, the tool used to keep the split
open is removed to allow the full pressure of the split stock to bear on the
scions at the point where the cambium of stock and scion are in contact. No tying
is usually needed; however, all the wounded surfaces are thoroughly waxed over.
Cleft grafting is the most successful when in early spring when the buds are beginning
to swell but before active growth has started.