Experimental Error in Croj) Tests 
37 
hill, Pride of the North yielded 26 per cent as much as 
Hogue's Yellow Dent. Due to competition with Hogue's Yel- 
low Dent in the same hill, Pride of the North yielded rela- 
tively 51 per cent too low, while in alternating single-row 
plats it yielded relatively 28.3 per cent too low. 
Comparing the yields of Hogue's Yellow Dent and Uni- 
versity No. B in the center rows of alternating three-row 
plats we have a ratio of 100:98, while in alternating single- 
row plats this ratio was 100:90. In the same hill the ratio 
I 
Fig. 12 — Relative growth of Hogue's Yellow Dent, University Xo. 3, 
and Pride of the North corn varieties when grown in the same hill 
(1914) 
4 
