LUTHER BURBANK 



which this species was crossed with the quince 

 and with the pear. 



I have grown numerous seedlings from a cross 

 of the apple and the common quince, Cydonia 

 vulgaris, and also the giant Chinese quince, 

 Cydonia sinensis. This cross was made both ways 

 in both cases. This is a cross between genera. 



Some of these hybrid seedlings grew quite 

 rapidly. The growth was generally peculiar, being 

 compact and stubby, and often with an unhealthy 

 appearance, especially towards the last of the 

 season. The foliage and bark most often resem- 

 bled the quince. 



I expected good results from these interesting 

 hybrids, but not one ever produced even a blos- 

 som. The developments were the same in all seed- 

 lings, however the cross was made. After a few 

 years they would decline and die, whether grafted 

 on the quince or the apple or growing on their 

 own roots. 



Several varieties of apples were also crossed 

 with the Bartlett and other pears. This is also a 

 bigeneric hybrid, and the result was in the end 

 similar to that of crossing the apple and the 

 quince. Most of these seedlings were abnormal 

 in their growth. They were generally dwarfed, 

 but in some cases exceedingly rapid growers were 

 produced, especially when the Bartlett pear was 



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