LUTHER BURBANK 



If there is a marked difference in rate of growth 

 of cion and stock, or if for any reason the two do 

 not blend to advantage, an ugly swelling often 

 results at the point of union ; hence the experienced 

 grower avoids making such combinations. These 

 plant affinities cannot be foretold; they can be 

 determined only by experiment. As already 

 pointed out, the success, vitality, and growth of a 

 graft will very largely depend upon the affinity 

 between cion and stock. 



Occasionally species from different genera may 

 be satisfactorily grafted. 



For example, some of the pears often thrive 

 even better for a time and produce superior fruit 

 when transferred to a Hawthorn or apple stock. 

 Almond cions thrive well on peach or plum 

 seedlings. Apricot cions grow and thrive well 

 on seedling plum or peach stocks. 



Cherry cions do well on seedling stocks of the 

 wild Mazzard cherry of Europe. The Mahaleb 

 cherry is sometimes used when it is desired to 

 have dwarf-growing trees. The peach generally 

 thrives on its own roots only. Apples thrive best 

 on their own roots or on various wild crab apple 

 roots. 



Pear cions do well on seedlings of wild 

 or inferior varieties of pears. Most of the 

 seedlings grown in this country are grown from 



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