A Study ot Colorado Wheat 
85 
These results seemed to make it worth the while to determine 
whether there is any difference in the composition of the large and 
small kernels of the same samples grown in a favorable season. The 
samoles that we have, which will fulfill this condition, are those grown 
in 1913. We have arranged in the following table analyses of large 
and small kernels: 
COMPOSITION OP LARGE AND SMALL KERNELS—CROP 1913 
m 
3 
Si 
s 
^ a; 
0 ? 
.be 3 
OJ 4 -) 
be cJ 
.5 
.2 
(D 
0 
t- 0) 
S' 
tC 0) 
. 0 
0 ^ 
0 ^ 
c6 V 
Sh 
Variety 
Fertilizer per Acre 
^ 0 
< c. 
— 0) 
Sh X 
0 I"' 
Ph ^ 
Defiance 
80 lbs. nitrogen. . . 
large 
56.00 
0.0397 
2.349 
12.390 
0.395 
0.422 
small 
44.00 
0.0239 
2.342 
13.347 
0.390 
0.475 
Defiance 
40 lbs. phosphorus 
large 
77.75 
0.0417 
2.210 
12.595 
0.444 
0.439 
small 
22.25 
0.0284 
1.982 
11.299 
0.435 
0.426 
Defiance 
150 lbs. potassium 
large 
74.30 
0.0433 
2.207 
12.582 
0.406 
0.423 
small 
25.70 
0.0303 
2.014 
11.479 
0.412 
0.413 
Defiance 
None . 
large 
71.50 
0.0425 
2.228 
12.700 
0.412 
0.457 
small 
28.50 
0.0293 
2.077 
11.837 
0.426 
0.450 
Red Fife 
80 lbs. nitrogen.. 
large 
51.60 
0.0398 
2.637 
15.032 
0.405 
0.467 
small 
48.40 
0.0289 
2.496 
14.226 
0.405 
0.464 
Red Fife 
40 lbs. phosphorus 
large 
49.60 
0.0391 
2.365 
13.481 
0.456 
0.425 
small 
50.40 
0.0301 
2.295 
13.079 
0.456 
0.454 
Red Fife 
150 lbs. potassium 
large 
53.10 
0.0390 
2.447 
13.945 
0.454 
0.413 
small 
46.90 
0.0318 
2.394 
13.644 
0.426 
0.437 
Red Fife 
None . 
large 
41.00 
0.0388 
2.457 
14.001 
0.455 
0.440 
small 
59.00 
0.0306 
2.414 
13.759 
0.462 
0.390 
Kubanka 
80 lbs. nitrogen. .. 
large 
45.00 
0.0532 
2.442 
13.920 
0.387 
0.416 
small 
55.00 
0.0332 
2.433 
13.867 
0.365 
0.423 
Kubanka 
40 lbs. phosphorus 
large 
63.66 
0.0490 
2.141 
12.202 
0.413 
0.463 
small 
36.34 
0.0339 
2.046 
11.659 
0.396 
0.502 
Kubanka 
150 lbs. potassium 
large 
65.30 
0.0502 
2.135 
12.167 
0.408 
0.433 
small 
34.70 
0.0300 
2.068 
11.788 
0.416 
0.438 
Kubanka 
None . 
large 
69.65 
0.0529 
2.118 
12.073 
0.427 
0.482 
small 
30.35 
0.0298 
2.085 
11.885 
0.412 
0.474 
The table has purposely been made full in the points essential in 
this case. These small kernels come from the top and bottom of the 
head and from the middle of the spikelet. We find, in the twelve pairs, 
a maximum difference of 1.30 percent. There is one other case with a 
difference of i percent. The other ten pairs differ by lesser amounts. 
The difference, however, is always in the same direction, in favor of 
the larger kernels. According to these results, neither the shrunken 
crops, nor the small berries, contain more protein than the large, plump 
ones. 
We have now given the composition of the seed used, that of the 
three crops so far obtained, and the conditions under which the latter 
were produced. The Defiance was seed of our own growing, the Red 
