LUTHER BURBANK 



But while the specific qualities of peach and 

 almond, representing their specialized develop- 

 ment in comparatively recent times, thus tend to 

 be segregated along Mendelian lines, yet the traits 

 in each case are of such long standing that they do 

 not Mendelize in the clear and satisfactory way 

 that we have seen manifested in some other cases 

 for example, the color of the blackberry, and its 

 thorns. 



There is, to be sure, a very marked segregation 

 in the second generation, illustrated by the most 

 astonishing variation among different second gen- 

 eration hybrids in the matter of size, rapidity of 

 growth, and almost every quality of flower and 

 fruit. 



This variation was so marked, indeed, as to 

 rob the seedlings of the value they might other- 

 wise have had as stock for grafting. The large- 

 growing specimens have value for this purpose, 

 but the diversity among the seedlings is so great 

 that they cannot at present advantageously be 

 grown with any hope of producing dependable 

 stocks. 



In the matter of the fruit, the second genera- 

 tion hybrids are equally variable. There are some 

 specimens that tend to reproduce the almond qual- 

 ity and others that tend to reproduce the peach 

 quality. And as might be expected there are yet 



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