6 UNIVERSITY OF CALIFORNIA EXPERIMENT STATION. 



On any internode of the shoot to be grafted a longitudinal incision 

 (Fig. 3, a) is made with the grafting knife, penetrating the whole 

 depth of the bark and about the length of the shield; with the haft of 

 the grafting knife the bark is raised on both sides of the slit; the 

 shoot is then bent inwards and the lips of the slit open easily (Fig. 3, &) . 

 The scion bud is inserted and the shoot is left to spring up into its 

 former position. The scion bud is then compressed by the bark, and 

 the operation is completed by tying. The ligature should be removed 

 a fortnight or twenty days afterwards. 



, 



a b c 



FIG. 4. 

 SALGUES GRAFT. VIEWS OF SCION BUD () SIDE, (&) FRONT, 



(c) BACK. 



In order that the Salgues graft may be a success, it is necessary, 

 first, that the stock should be in full sap, so that the lips of the slit 

 may be easily raised; secondly, that the scion bud should be carefully 

 selected. 



When a green shoot is cut longitudinally on its entire length, 

 different colorations may be noticed along the section; towards the 

 apex the shoot has not yet begun to lignify, and the section is almost 

 uniformly green in color, only slightly deeper above and below each 

 node. The diaphragm of these can only be detected at the second or 



