43 



m m M 



The Two Hig-h Yielding' Samples 



Ten-ear samples selected from bushel lots grown by George Krug (No. 62) 

 and E. R. Schertz (No. 101) in 1920, the middle year of the test. 



A 'careful germination test of ten grains from each envelope was made 

 and the corn from the envelopes which did not show perfect germination 

 was discarded. The corn from each of the remaining envelopes was ihen 

 examined carefully, and any lots which showed badly shrunken kernels or 

 apparently diseased kernels were discarded. The corn from the remaining 

 envelopes was mixed together. This sample of corn from the ears showing 

 perfect germination, full kernel development, and apparent freedom from 

 disease was the one planted in the field. As an average of the one hundred 

 eighteen samples, corn from about fifty ears was mixed together to make 

 the sample planted. A small sample of each lot of shelled seed ready for 

 planting was saved to be used in exhibits of the work. 



The owner of each lot of seed was notified of the numbers of the ears 

 selected for the field test, and in most cases the men picked those ears out, 

 shelled them together and planted such seed separately from the rest of 

 their corn. 



HOW THE FIELD TEST WAS CONDUCTED. 



Each of the one hundred eighteen samples was planted in four places, 

 twice on the County Farm near Metamora and twice on the Frank Hock 

 farm east of Benson. The corn was planted by hand so as to get the same 

 stand. In 1919 three kernels were planted in each hill. The plots used 

 were four rows wide and fifteen long. Every other plot was planted with 



