136 



Moore : The study of winter buds 



says : 



'* It is not in reality an absolute rest ; for although the 

 outwardly visible processes of development and growth stand still, 

 the internal vital processes, although retarded, never altogether 



cease. 



j> 



The investigations of Miyake (1902) demonstrate that in ever- 

 green leaves " starch is formed by photosynthesis in winter, 

 though feebly, and its translocation occurs in the same season." 



According to Fischer (1891), who has made many important 

 observations on the metabolic processes which occur within the 



mm. 



Figure I. Rhododendron maximum. Curves of growth of the buds in length 



and diameter. 



tree during winter, various activities and movements of the re- 

 serv^e material take place in the interior of the tree long before 

 any externally visible changes become apparent. The starch 

 which is stored in the pith of the young shoot moves toward the 



buds and 



from 



which hitherto it has been absent. It is a reserve material and 

 just suffices for the first stages of growth preceding the swelling 

 of the buds. 



