Pruning. 243 
427. a—Pruning for Growth may be performed (1) 
By removing a part of the branches, thus reducing the num- 
ber of growing points, and the surface exposed to evapora- 
tion. Plants that are not making satisfactory growth through 
feeble root action, may often be invigorated by this treat- 
Fig. 162. Apple tree pruned with open head, to admit abundant light. 
ment, which is especially useful in trees recently trans- 
planted, or weakened by overbearing. 
(2) By suppressing reproduction. When growth is desired, 
it is often advisable to prevent the development of flowers. 
