1002 
Journal of Agricultural Research 
Vd. XXIV, No. 12 
Tabi«E II .—Distribution of F2 plants of the cross between Marquis and Kota into classes 
according to average length of seed, in relation to plant and spike characters 
Plant type. 
Classes for seed length (in millimeters). 
Total 
Mean. 
4.8 
5*1 
5-4 
5-7 
6.0 
6.3 
plants. 
Ncamal: 
Awnless. 
12 
72 
II 
174 
51 
3 
114 
64 
I 
12 
384 
12*7 
5 - 73 ±o.oi 
S-85±o.oi 
5.26±o.o7 
5.i8±o.o5 
Bearded. 
2 
0 
Dwarf: 
Awnless. 
c 
0 
c 
y 
I 
24 
12 
Bearded. 
D 
7 
y 
•2 
0 
6 
0 
0 
Tabi<B III .—Distribution of F2 plants of the cross between Marquis and Kota into classes 
according to the percentage of hardness of seed, in relation to plant and spike characters 
Plant type. 
Classes for percentage of hardness 
(loo*-corneous). 
Total 
plants. 
Mean. 
40 
4 S 
SO 
5 S 
60 
6s 
70 
75 
Normal: 
Awnless. 
2 
I 
S 3 
24 
13 
3 
II9 
51 
II 
8 
162 
46 
7 
3 
24 
10 
2 
23 
5 
I 
384 
137 
33 
14 
58.92iO.l8 
57.Olio.29 
54 . 7 o±o -54 
55 -o<>io *04 
Bearded. 
liwarf: 
Awnless. 
Bearded. 
Tabi^B IV .—Distribution of F^ plants of the cross between Marquis and Kota into 
classes according to the percentage of plumpness of seed, in relation to plant and spike 
characters 
Plant type. 
Classes for percentage of plumpness. 
Total 
plants. 
Mean. 
30 
40 
4 S 
50 
55 
60 
6S 
70 
75 
80 
85 
90 
Normal: 
Awnless. 
2 
2 
... 
13 
. . . 
30 
14 
82 
36 
86 
4 
384 
74.oaio.33 
Bearded. 
I 
0 
6 
31 
33 
33 
18 
6 
137 
75 - 44 ±o .44 
Dwarf: 
y 
AwhIpsr 
r 
I 
II 
I 
A 
2 
A 
c 
33 
14 
56 .82 i 1.38 
D 
I 
•1 
I 
I 
2 
e 
D 
I 
61.79i1.73 
0 
Apparently the presence of the awn results in the production of a 
somewhat longer seed on the normal plants, the average difference being 
about o.i mm. The texture of the seeds of the awnless normal plants 
was somewhat harder than that of those on the bearded plants. The 
percentage of plumpness of the seed of the bearded normal plants aver¬ 
aged slightly higher than in the case of the awnless plants although, in 
the light of the probable error, the difference obtained is not signi&ant. 
In the determinations of texture, 100 is the standard for completely 
corneous seed, the border line between subcomeous and soft being around 
50. The percentage of plumpness of seed is taken in a somewhat similar 
manner. 
