The Improvement of Crop Plants 97 



U. S. D.A. 



FIGS. 75 and 76. A perfect strawberry flower and an imperfect one : Fig. 75 

 (left), flower with both pollen and stigma; Fig. 76 (right), flower with- 

 out pollen only stigma. 



seed. Edward F. Bigelow, a naturalist of Sound (a) of 

 Beach, Connecticut, managed to collect potato seed p 

 from almost every state in the Union and planted it. 

 The result is shown in Figure 79. This is the second 

 year's crop. The first year the potatoes were about 

 / the size of peas. The replanting (from eyes) must be 

 continued for several years yet before it can be known 

 whether or not any of the varieties will be desirable. 

 It is said that Luther Burbank, when a young man, 

 originated the Burbank potato by planting seed that he 

 chanced to find on a potato vine. 



Seedling fruit trees differ from the parent tree. And (6) of fruit 

 if an orchard were set out with seedlings from the 

 same tree, every seedling might be different from 

 all the others. Whenever a seedling tree is found 

 that has exceptionally good fruit, it can be perpetuated 

 as a new variety by grafting its buds into other seed- 

 lings. 



