368 



BOTANY OF CROP PLANTS 



more that the fruit spur must be two or more years old before 

 it will bear fruit. Paddock and Whipple ("Fruit Growing in 



Fig. 153. — Spur of Yellow Transparent apple. 



Arid Regions") have noted that in certain districts of Colo- 

 rado many varieties produce flower buds in the axils of leaves 

 on the growth of the current season and that one-year-old spurs 



