Apr. 7 , 1923 
Influence of Soil Temperaiure on Fusarium in Cabbage 81 
was very rapid until most of the plants were affected, after which the 
remaining plants showed infection more slowly. Conversely, the disease 
developed slowly but at a fairly uniform rate with 23 and 26 per cent 
moisture, and at the conclusion of the experiment the percentage of 
Fig. 10.—Comparison of death rate from yellows in Commercial Hollander seedlings given in Table XIII , 
grown 38 days at 33® C. 
disease was noticeably lower, especially with 23 per cent moisture. It 
was rather surprising to find that this comparatively slight difference in 
percentage of moistiure made such a significant difference in the rate of 
development of yellows. 
The difference in death rate of the affected plants is even more striking. 
At the conclusion of the experiment the number of plants killed by yel- 
30615—23-6 
