58 
Research Bulletin Xo. 1 
1 
Fig. 14. Comparative extent of the rotting following different types of 
inoculation. Inoculated March 29. 
INOCULATION OF "NEW" TUBERS OP EARLY OHIO. 
New potato tubers were obtained at Alliance and inoculated 
September 3, 1909. 
Table 22. — Inoculation of tubers subsequently covered with 
moist absorbent cotton and left exposed to the ordinary room 
conditions, the air being usually very dry and icarm. The 
examination teas made six weeks after inoculation. 
Method of 
inoculation 
No. of 
tubers in- 
oculated 
No. of in- 
oculations 
per tuber 
No. of 
successful 
inoculations 
Extent of rot 
Epidermis removed 
7 
2 
14 
One-half of tuber rotted 
Surface puncture. . 
13 
4 
52 
One-half of tuber rotted 
Thru scab spots- . 
8 
•1 
o 
Smear 
8 
4 
0 
