The Regional Adaptation of Corn in Nebraska 
61 
COMPARATIVE YIELDS OF CORN FROM VARIOUS SOURCES IN 
EASTERN NEBRASKA 
The following test was made to throw light on two ques- 
tions : ( 1 ) What variation in yield may be expected in corn 
grown by different farmers in the same community? and (2) 
How do local varieties compare in yield with varieties secured at 
some distance? 
The tests were made at the Xebraska Experiment Station in 
Lancaster County. Yields were based upon the middle rows 
of well-replicated three-row plats of which the first fifty con- 
secutive full-stand hills were harvested and air dried. Thus 
variation in stand, variety plat competition, and soil differences 
were rather largely eliminated. All being fairly larger varie- 
ties, it would appear that a uniform rate of planting should 
give significant results. 
Hogue's Yellow Dent corn has been grown at the Experiment 
Station for about twenty years and has long been regarded as 
unsurpassed in yield under Experiment Station conditions. The 
Xebraska White Prize corn grown at the Station has been re- 
garded as one of the most productive white varieties and has 
been grown there for twelve years. The other local corn se- 
cured from ten near-by farmers has in most cases been grown 
by them ten or more years, and has been handled in the custo- 
mary farm manner. Likewise the corn types secured from other 
eastern counties had been grown there for a long term of years 
and were regarded as fulh T adapted. The results are given in 
Table 31. 
As an average for the three years, the home grown Hogue’s 
Yellow Dent outvielded seed from all other sources. Of the 
local varieties the lowest vielder was 7.7 bushels less than Hogue’s 
Yellow Dent. Three of the ten local corns yielded within 3 per 
cent as much as Hogue’s, which yielded 6 per cent more than 
the average of all other local sorts. 
Of the seed obtained at a distance from other eastern coun- 
ties. one yielded 16.7 bushels less than Hogue’s. Another yielded 
10.5 bushels less. Three of the remaining five yielded within 
two bushels of the home-grown Hogue’s Yellow Dent. 
The data suggest that there may be considerable variation 
in yielding capacity of corn grown by different farmers in the 
same locality and also among corn secured from various distant 
sources. Seed from three southeastern counties with more favor- 
able growing conditions averaged 56.9 bushels as against 66.7 
bushels for home grown Hogue’s Yellow Dent. Seed from four 
northeastern counties with somewhat shorter growing season but 
equal in rainfall, averaged 63.7 bushels. Thus the relative yields 
