362 
Journal of Agricultural Research 
Vol. II, No. 5 
Table V.— Results showing infection produced in Red Amber sorgo by extraseminal 
inoculations 
Plat A« 
[Planted at Amarillo, Tex., in the field; counted Sept. 12, 1911.] 
Serial No. 
Date. 
Seed lot. 
Spore lot. 
Method. 
Total 
number of 
plants. 
Infection. 
I 
May 25 
I 
Mixed 
bn(y) 
325 
Per cent. 
4.9 
2 
(i) 
do 
bn(y 
3 g 3 
3-7 
3 
do 
I 
do 
toy 
103 
5-8 
4 
do 
(i) 
do 
bn(y] 
70 
5*7 
5 
do 
I 
do 
bmy 
165 
6.7 
6 
do 
(i) 
do 
bmy 
210 
5*3 
7 
do 
I 
do 
bm(x 
130 
34 * 6 
8 
May 26 
(i) 
do 
bm(x 
IO6 
23.6 
9 
May 25 
I 
do 
amy 
200 
10 
10 
do 
(i) 
do 
amy 
292 
4.1 
11 
(May 23) 
I 
A 
az 
34 
11. 7 
12 
do 
(i) 
A 
az 
no 
5 * 5 
13 
May 25 
I 
a, control & 
196 
6.6 
14 
(i) 
a, control 
127 
12. 6 
15 
do 
I 
a, control 
272 
7*3 
16 
do 
(i) 
a, control 
444 
3-8 
Plat B« 
[Planted at Washington, D. C., in pots in the greenhouse of the.Department of Agriculture. The even 
numbers were planted in a 2-inch top dressing of clean sand, while the other pots (odd numbers) con¬ 
tained only potting soil; counted May 16, 1912.] 
I 
( c 
ir 
B 
bn(x) 
8 
50.0 
2 
)c< 
11 
\ B 
bn(x) 
7 
i 4*3 
3 d 
)c< 
11 
! B 
bmx 
3 
100 
4 
)c ( 
) 
11 
B 
bmx 
3 • 
100 
5 
l c< 
> 
11 
a, control 
5 
0 
6 
( c i 
> 
11 
a, control 
7 
0 
7 
> 
(H) 
a, control 
7 
0 
8<* 
(& 
> 
(ii) 
4 * 
a, control 
8 
0 
9 
(e< 
> 
11 
B 
bmx 
2 
50 
10 
( c : 
) 
11 
B 
bmx 
1 
100 
Plat C/ 
[Planted at Amarillo, Tex., in the field; counted Sept. 7, 1912.] 
1 
May 28 
1 
II 
(B) 
bp(x)o.6to 1.2 9 
4 i 
26.8 
2 
May 30 
III 
(B) 
bp(x) 
5 
0 
3 
May 28 
II 
B 
bmx 0.6 to 1.2 9 
45 
66.6 
4 
May 30 
(III) 
B 
bmx 
1 
0 
5 
May 28 
IV 
B 
bmx 
18 
44. 4 
6 
do 
II 
B 
amx 
102 
42. 2 
7 
(May 29) 
II 
B 
azz 
522 
21.45 
a Inoculations by the author. 
b Treated for one hour with 0.24 per cent formaldehyde solution. 
« About Nov. 15, being the date of planting in Nos. 5, 6, 7, and 8. 
dSee Plate XXXV, figure 3. 
« About Feb. 8. 
/ Inoculations performed by Mr. E. C. Johnson. 
9 The numbers given indicate in centimeters the length of the plumules in Nos. 1 and 3, and the average 
height of the plants in Nos. 8 and 9. In the latter case the plants were mostly unbranched as yet. In 
Nos. 10 and 11 the plants were younger than in No. 3. 
