CHANGES ACCOMPANYING BREAKING OF REST PERIOD 



27 



The date of application of the agent is an important factor in the 

 enzyme determinations, as may be seen from the data in Table 8. 

 In some cases the enzymes apparently were not stimulated in the 

 early part of the season ; but the same treatment applied a few months 

 later caused increased enzyme activity. (Cf. No. 5, Table 8.) In 

 other cases, a dose of ether proved effective early in the season, while 

 later on, it had very little or no effect whatever. (Cf. 3 and 4, Table 



o 



CO 



>< fc 



is 



WQ 

 H 



i 



5 



+ + 1 + 



i + 



+ 



+ 



++ 



++ 



MI 



1 1 + + 



II 



+1 ++++ 



++ ++ 1 1 +4- ++ 1 1 +++ 



T-l i-l i-l l-H CS CS CS CS CS CN 





$ 





1 1 



