Corn Investigations 
107 
The entire range of results from the various ear-to-row 
breeding methods varies from a reduction in yield of 12.5 per 
cent to an increase of 2.6 per cent over the original corn. Al- 
lowing for a small possible experimental error, we may conclude 
that the slight improvement in yield indicated for eighteen 
years of ear-to-row breeding offers little promise in a practical 
way. 
Fig. 25. — Two plats in an initial ear-to-row test in 1907. Row No. 64 
yielded 81.2 bushels and row No. 65 yielded 58.7 bushels in compari- 
son with 64.4 bushels for the original Hogue’s Yellow Dent. The 
remnant of ear No. 64 was increased and grown thereafter in an 
isolation plat. During the seven years, 1911-1917, this seed has 
produced 5.9 bushels less per acre than the ordinary variety from 
which it was selected, probably due to close breeding. See Table 
40 for method No. 3. (From Nebraska Bulletin 112, figure 2.) 
We should bear in mind that this work has been done with 
a well-adapted variety. Had a poorly acclimated variety been 
used, doubtless marked improvement might have resulted from 
continuous ear-to-row breeding thru selection of the better 
adapted strains. 
