38 
Journal of Agricultural Research 
Vol. XXIX, No. 1 
Table XXIX.— Segregation of 28 F 4 selections of the Kota-Hard Federation and 
reciprocal crosses, together with the parents and Marquis, for crude protein of the 
flour, at Mandan, N. Dak., in 1923 
Classes by crude protein content (per cent) 
F 4 hybrids 
Hard 
Federa¬ 
tion 
Kota 
Marquis 
Number 
Percent¬ 
age 
Number 
Number 
Number 
14.0___ 
2 
7. 1 
1 
1 
1 
14 5 _ _ 
1 
3.6 
1 
is n 
7 
25.0 
1 
15 5 _ 
10 
35. 7 
1 
16 0 
5 
17.9 
... . 
lfi 5 
1 
3.6 
17 0 
1 
3.6 
17 5 
0 
.0 
_ 
is n 
1 
3. 6 
Total_ 
28 
100. 1 
2 
2 
2 
FLOUR COLOR 
The gasoline color test is considered 
the best practicable method of deter¬ 
mining the color of flour. The method 
used in this study is described by 
Shollenberger, Marshall, and Coleman 
(31). A limited number of preliminary 
experiments have shown Kota to ex¬ 
ceed Marquis in gasoline color value. 
No comparison had been made be¬ 
tween Kota and Hard Federation. 
Because of the popular demand for 
white flour and bread there is a 
hybrids and on the duplicate samples 
of Kota, Hard Federation, and Mar¬ 
quis, previously discussed. The data 
are summarized by frequencv classes 
in Table XXX. 
The data show considerable segrega¬ 
tion in the hybrids. The limited data 
do not show Kota to exceed Hard Fed¬ 
eration or Marquis in color of flour and 
are not in accord with preliminary ex¬ 
periments and commercial findings. 
However, a considerable number and 
percentage of the hybrids have less 
Table XXX.— Segregation of 30 F 4 selections of the Kota-Hard Federation and 
reciprocal crosses, together with the parents and Marquis , for gasoline color value, 
at Mandan , N. Dak., in 1923 
Classes by gasoline color value 
i 
F 4 hybrids 
Hard 
Federa¬ 
tion 
Kota 
Marquis 
Number 
Per cent 
Number 
Number 
Number 
0 90 ..... 
2 
6.7 
1.10 . _ 
0 
i 
1 30 _ 
4 
13.3 
l 
1.50 . . . _ _ 
2 
6.7 
1 
1 70 __ . 
5 
16.7 
1 
1.90_ 
9 
30.0 , 
1 
1 
1 
2.10 _ 
5 
16.7 
1 
l 
2 30 .... . _ 
3 
10.0 
Total_ 
30 | 
! 
100.1 , 
1 
2 
2 
2 
prejudice against flours with a creamy 
or yellowish color containing more 
carotin. As the trade finds this charac¬ 
ter objectionable in Kota it is important 
to determine if there is segregation for 
this character in Kota hybrids. 
Gasoline color values have been 
determined on the flours of the 30 F 4 
color than the parents and Marquis, 
indicating segregation in the desired 
direction and the possibility of obtain¬ 
ing the desired results. The average 
gasoline color value for the 30 F 4 
hybrids was 1.79 and that of Hard 
Federation, Kota, and Marquis 2.01, 
1.74, and 1.94, respectively. 
