— 9 — 



3. Age of mother Trees in relation to Inflorescence 

 AND Fructification of Saplings 



(1) More saplings bearing flowers originate from young mother 

 trees than from old mother trees, regardless of locality. 



(2) This difference is more conspicuous when saplings from the 

 seeds of a certain locality are grown in the same or another locality of 

 similar climate. 



(3) Regardless of the age of the mother trees, when saplings, 

 originating in a warmer place, planted in a colder locality they bear 

 more inflorescence at an earlier age. On the contrary, when saplings 

 originating in a relatively colder climate, grown in a warmer district they 

 have very little inflorescence. 



(4) Saplings originated in localities of similar climate show slightest 

 difference in growth and inflorescence when replanted another place. 



The inflorescence and fructification of saplings are influenced by the 

 locality of the mother trees and their ages as already explained in a 

 previous chapter. This inflorescence and fructification of a tree must 

 also be affected by the locality, nature of soil and method of tending. 

 Further experiments were made on the subject with regard to the 

 following points. 



1. Training of Seedlings in relation to Inflorescence 

 AND Fructification. 



That the inflorescence and fructification of a plant can be forced is 

 well known to horticulturists in relation to garden plants. Such forcing 

 has, however, never known to have been tried on tree seedlings grown 

 in the nursery until we carried out experiments during the years 1905 

 and 1907. 



Method of the trial: — Several lots of equally grown two feet Sugi 

 seedlings, such as are generally able for transplantation, were put in 

 nursery beds in similar surroundings. The seedlings of each lot were 

 cut at their root ends at various intervals respectively, by means of a 

 scooper-scythe, as follows: — 



