Fig. 24.
Whip Grafting. 1. Stock showing cut. 2. Scion. 3. Stock and Scion ready for bandage.
Whip Grafting. Branches, which are to be worked by whip grafting, should be less than one inch in diameter. The method is illustrated in Fig. 24. A sloping cut, an inch and a half long, is made diagonally across the stock. A corresponding cut is made on the scion, a tongue is raised about the center of each cut by making another cut with the budding knife held almost parallel to the sides of the wood. The tongue is raised a little on both stock and scion and the two are shoved together. They should be securely bound with a strip of waxed cloth, and a layer of wax should be spread over the whole, covering up all the cut surfaces to the exclusion of water, air and the germs of decay.
Photo by J. F. Jones.
Fig. 25.
One year Pecan in fruit. Unusual; due to bearing wood being used as a scion.
The scion and stock are preferably chosen of nearly the same size, but a scion somewhat smaller than the stock may be used, in which case the cambium layers along one side of the surfaces in contact should be placed opposite each other, and the projecting portion of the stock trimmed off.
After-care.
In from ten days to three weeks, the buds should unite. They should be examined, and if union—indicated by the full, plump condition of the buds or the commencement of growth—has taken place, the wrappings should be removed. If growth has started, the stock should be cut off or lopped just above the insertion of the bud, in the case of budded trees. From time to time the trees should be examined, and all sprouts which might rob the bud of sap, thereby preventing its growth, should be rubbed off.
FOOTNOTES:
[I] The term grafted, as here used, embraces budded trees as well.
[J] Bulletin 30, Bureau Plant Industry, U. S. Dept. Agr., 1902.