GRAFTING AND BUDDING. 40 



GRAFTING AND BUDDING. 



1. The existence of the cambium in the 

 stems of dicotyledonous plants renders possible 

 the carrying out of certain operations known 

 as grafting and budding. This depends upon 

 the fact that the cambium, being a region of 

 active growth where new tissue is being 

 regularly formed, can repair injuries to the 

 bark or to the surface of the wood, and 

 moreover, when the cambiums of two stems 

 are brought together by suitable operations 

 they both form new tissues so intermingled 

 that the two stems unite and grow together. 



2. To carry out grafting in its simplest 

 form select two branches, of equal thickness, 

 of different trees of the same species, and 

 without separating either from its parent, cut 

 away a portion of the bark and a little of the 

 wood below it, thus exposing the cambium as 

 a narrow line surrounding the cut ; take care 

 to make the cuts on both branches of about 

 the same si/e and shape. Bring the cut sur- 

 faces together with their respective cambiums 

 in close contact as far as possible, and secure- 

 ly bind the branches together in this position. 

 Each cambium now makes efforts to repair 

 the injuries to the surrounding tissues and, all 

 being well, the new growth thus resulting 



