614 IOWA ACADEMY OF SCIENCE 



2. Two pints per bushel did not affect the vitality un- 



less it be at the end of ten to twelve hours. 



3. An application of four pints was followed by a slight 



decrease in germination when covered eight or 

 more hours. 



■i. When six pints per bushel were used, there was an 

 apparent decline in the germination from one to 

 six hours, after which the germination seemed to 

 improve. This may be due to the drying out of 

 the oats and consequently the lessening effect of the 

 formalin. Apparently there is some experimental 

 error incurred when dealing in quantities smaller 

 than several bushels. 



5. Eight pints caused a gradual decrease in the germi- 

 nation for each hour covered. Covering for more 

 than one hour is questionable. 



fi. Field tests showed that as the treatments per bushel 

 increased there was a slight irregularity in germi- 

 nation, especially for those covered for several 

 hours. No apparent accelerated germination was 

 noted due to stronger treatments, as has been ob- 

 served with the hot water treatment. 



I Solution — One pint formalin to twenty gallons of water. 



1. The results of the germination tests indicate that a 



solution of this strength has no decided effect upon 

 the vitality, even when covered for twelve hours. 



2. In the field work there were no apparent differences 



in the plots seeded with the treatments of one and 

 two pints per bushel. 



3. AVhen four pints were used and covered for eight 



hours, there was delayed heading of one day. When 



covered ten to twelve hours the heading was de- 

 layed at least two days. 



4. The same effect was observed with the six pint treat- 



ment : however, the variation was more pronounced. 



5. When eight pints were used, those treatments cov- 



ering eight to twelve hours showed a lack of uni- 

 formity and also a decrease in the yield. How- 



