:2o(l NATl'HAL HKGENHHATION OF WOODS. 



SkcTION 11. NaTLHAL PiEGKNKItATloN 1!V SllnoTS AND 



SUCKKRS. 



It lias been explained in Part I.,* that woody plants can 

 reproduce themselves b}' means of shoots, or suckers, or botli. 

 Shoots may sprinp; from the stool, after the tree has been cut 

 over close to the ground, or from the stem and top. if the 

 cutting is restricted to the side branches and the upper part 

 of the stem. Accordingly a distinction may be made between 

 regeneration from the root, stool, or stem. Of these, repro- 

 duction by stool shoots is b}' far the most important, but as in 

 many cases it occurs in conjunction with reproduction by 

 suckers, the two will be dealt with together. 



1. Refimeratio)! In/ Sfool SJinotn and Siicl.rys. 



As already stated, regeneration follows the cutting over of 

 the trees. Where stool shoots are wanted, the cutting over 

 takes place close to the ground, followed by a clump of 

 shoots which spring either from adventitious buds formed 

 on the callus near the edge of the cut, or from dormant 

 buds on the neck of the stool. A similar mode of cutting is 

 employed where both stool shoots and suckers are wanted. 

 If only the latter are desired, the stump may be removed, and 

 only the roots left. 



The success of this system of I'egeneration depends on many 

 things, of which the following require special attention. 



Of the species growing in temperate Europe only broad 

 leaved trees and slirubs are adapted to the method, and even 

 amongst these great differences exist in regenerative power. t 



0. Af/et'f Wooil nl 7'i/nr (>J[ ( 'i/lli/i;/. 



Generally, reproduction is most powerful during youth up 

 to the period of principal height gi-owth,and under favouralde 



• Spc paeo fi". i Soo pajzf <>", 



