SILVICULTURAL METHODS OF REPRODUCTION 



57 



they are windfirm, may be left for this purpose. They should 

 have large crowns occupying at least half the tree's height, since 

 these bear the largest crops of seed, while suppressed and spindling 

 trees have very little seed. The investment consequent on this 

 method is relatively low. Wherever many or valuable trees 



By permission of the Massachttselts State Forester. 



Fig. 15. The seed tree method. Pine seed tree's are seen together with some hardwoods. 

 These latter will be cut clear for cordwood, only pine remaining. 



are required as seed trees some other method should be sub- 

 stituted. 



After reproduction has been established the seed trees usually 

 are removed. 



