THE ROYAL WALNUT 



The nuts themselves are closely similar in 

 appearance to those of the parent trees, but 

 are individually larger. Unfortunately seedlings 

 grown from the nuts cannot be depended upon to 

 reproduce all the good qualities of their hybrid 

 parents. Like most second generation hybrids, 

 they tend to "throw back" to the divergent 

 grandparental strains. 



To propagate the race extensively, therefore, it 

 is advantageous to adopt the well-known method 

 of grafting. 



It has been found that root stocks of the Royal 

 hybrid furnish very valuable stocks on which to 

 graft the English walnut in California. On most 

 soils a tree grafted on this hybrid will produce 

 several times as many nuts as a tree of corre- 

 sponding size growing on its own roots. The 

 trees are also much less subject to blight when 

 they are thus grafted. 



GRAFTING THE WALNUT 



The importance of the new walnut and the 

 fact that it may best be propagated by grafting 

 makes it desirable to add a few details as to the 

 method by which grafting is effected; for in the 

 case of this tree the process is far more difficult 

 than with ordinary fruit trees. 



Grafting the walnut is not, indeed, as difficult 



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