

i8o 



BOTANICAL GAZETTE 



[march 



temperature 



Here again there is close agreement 



Q 



10 



1 the calculated values, 

 perimental temperatures 



Table IV shows 



formula 



arithm 



time for wheat with 9, 12, and 17. 5 per cent moisture 

 of the constants is found to have a common value in 1 



Since one 



I 



Currr storing relation 

 Si&Hmm ffmftrafvr* and 



t/fffi. 



Moisture '(7.5 % 



60 SO /00 £0 /40 J*0 #0 200 220 240 260 280 J00 J20 J40 J60 JOO 400 420 440 4§S 



Fig. 4 



per cent moisture curves, they are parallel. Since they were 

 obtained under identical conditions, one may surmise that the 

 curves in which temperatures in degrees Centigrade are plotted 

 against time in minutes are parallel. Sufficient data are not avail- 

 able with the 17.5 per cent moisture content at experimentally reli- 

 able time intervals to justify a conclusive generalization. The 

 curve for the 17.5 per cent moisture content deviates upward 

 from a straight line in the lower time range. This is due to the 

 fact that a considerable part of the short period of exposure was 

 consumed in heating the seed up to the temperature of the 

 bath. s * 



