The Regional Adaptation of Corn in Nebraska 
21 
Table 6. — Mean Temperature During Four Spring and Summer 
Months in Regions W here Corn Adaptation Studies Were 
Located . 1916. 
Location 
Mean Temperature 
May 
June 
July 
August 
Average 
County 
(1) 
Degrees F. 
(2) 
Degrees F. 
(3) 
Degrees F. 
(4) 
Degrees F. 
(5) 
Degrees F . 
(6) 
EASTERN NEBRASKA 
Richardson 
64.4 
70.3 
81.9 
78.7 
73.8 
Cass 
62.0 
66.5 
79.6 
74.7 
70.7 
Thurston 
60.2 
64.9 
80.1 
73.2 
69.6 
Lancaster 
62.2 
67.8 
82.1 
75.8 
72.0 
Nuckolls 
56.8 
63.8 
81.0 
76.8 
69.6 
Average 
61.1 
66.7 
80.9 
75.8 
71.1 
CENTRAL NEBRASKA 
Kearney 
60.7 
66.2 
80.0 
74.4 
70.3 
Holt 
55.0 
63.7 
79.5 
72.8 
67.7 
Lincoln 
58.2 
64.6 
80.0 
74.0 
69.2 
Cherry 
55.0 
62.2 
79.2 
71.2 
66.9 
Average. 
57.2 
64.2 
79.7 
73.1 
68.5 
WESTERN NEBRASKA 
Grant 
52.5 
60.0 
70.5 
67.6 
62.6 
Dawes 
54.6 
62.8 
78.0 
69.9 
66.3 
Kimball 
53.3 
63.0 
74.2 
68.3 
64.7 
Average 
53.5 
61.9 
74.2 
68.6 
64.5 
THE CORN TYPES SURVEY OF NEBRASKA 
TWO CLASSES OF INVESTIGATIONS 
Data having been presented to show the widely different 
growing conditions in various regions of the State, we may 
proceed to the comparison of corn types which are found 
adapted to these conditions. The plant characters were deter- 
mined by detail measurments, the results of which are summar- 
ized in tabular form. 
The corn types survey may be divided into two main sorts 
of investigation: (1) Native corn types grown in their home 
environment, and (2) native corn types grown out of their home 
environment. The types studied in both cases represent native 
corns from twelve different parts of the State. Such localities, 
Figure 9, were selected that most regional conditions in 
Nebraska might be represented. The localities may be re- 
