56 



BULLETIN 934, U. S. DEPARTMENT OF AGRICULTURE. 



TABLE VI. Results of parallel inoculation with Rheosporangium aphanidermatus 

 in id Pytliium debaryanum on pine seedlings in autoclaved soil. 



a Location of the inoculum: In experiment 30, at one point at the edge of each pot; in experiment 31, 

 over the entire pot; in all other experiments, over one-quarter the area of each pot. 



b The breakage of the one seedling not killed while sprouting prevented the determination of results. 



c Double seed density in these pots; emergence and survival figures halved to allow direct comparison 

 with other units. This high seed density may explain in part the higher loss In strain 351 than in strain 229. 



d Experiment 62B was conducted at the same time as 62A, but with a different soil. 



Table VI shows that in experiments 30 and 67 the loss was less in 

 the Rheosporangium pots than in the controls and that in experiment 

 68 the results were entirely negative, while in the remaining seven 



