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UNIVERSITY OF CALIFORNIA EXPERIMENT STATION. 



Wire Grafting. The merits claimed for this method are that it 

 is more rapid, requires less skill, and does away with the troublesome 

 tying and still more troublesome removal of the tying material. Prac- 

 tised grafters can obtain as large a percentage of No. 1 unions by this 

 method as by any other, and unpractised grafters can do almost as 



FIG. 9. Wire-cutter. 



well as practised. Another advantage of the method is that the scions 

 have less tendency to make roots than with the tongue graft. 



It consists essentially of the use of a short piece of galvanized iron 

 wire inserted in the pith of stock and scion for the purpose of holding 

 them together, thus replacing both tongues and raffia. It has been 

 objected that the iron would have a deleterious effect on the tissues 

 of the graft, corroding them, or causing them to decay. There seems, 

 however, no reason to expect any such result, and vines grafted in this 

 way have been bearing for years without showing any such effect. 



