Vol. 50

Title:
How Grafting Technique on Aesculus Can Influence Healing

Author:
Tim Brotzman

pp: 392

Abstract:
GRAFTING METHODS

The technical goal of grafting is to unite a scion and rootstock as quickly as possible, using one of several methods that will produce a strong union with maximum cambial contact. I employ three types of carpentry when grafting Aesculus:

1. Cleft
2. Splice
3. Whip and tongue

Advantageous buds (i.e., suckers) often appear when healing is slow or incomplete. Though advantageous buds can and will be commonly produced around the union regardless of the technique, any style that leaves edges of cambium tissue exposed is more likely to do so. For this reason I prefer splice or whip and tongue more so than cleft grafting.

Each year Brotzman's Nursery grafts approximately 200 A. ×carnea cultivars and A. ×arnoldiana cultivars onto A. hippocastanum. I usually graft onto potted stock that has been warmed to induce root initiation. Aesculus respond well to heat and a hot callus pipe can be used. I have also plunged them in peat and stood plants upright in flats. Grafts are always

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