Vol. 46

Title:
A Tube Method for Grafting Small Diameter Scions of the Hardwoods Quercus, Fraxinus, Betula, and Sorbus in Summer

Authors:
G.C. Douglas, J. Mc Namara and D. Thompson

pp: 221-226

Abstract:
In conventional grafting of oak and ash in February, the graft viability over 3 years was 15% and 97%, respectively, with 64% of oak clones responding and 100% of ash, using scions from mature trees. Using single node scions from these grafted plants, epicormic shoots, crown shoots, and a silicone tube to hold graft unions we recorded improved rates of graft viability by summer grafting. All oak and ash clones made viable grafts with efficiencies of 18% to 100%. Summer grafting of hardwoods allows several serial grafts per year and potential to rejuvenate tissues.

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