Wire Stem of Cabbage 



33 



These experiments were repeated the following year with a reduction 

 in the sources of error encountered in the first year. A complete new 

 system was set up for each trial. First, the gallon jars were replaced by 

 others of the same diameter but not so high (13 by 19 centimeters). These 



20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 

 Hours after transplanting 



Figure 3. influence of different soil temperatures and soil moistures on 

 rate of damping-off of cabbage seedlings caused by corticium vagum 



(table 9, trial iii) 



Soil moistures are given as percentages 



