52 



Martin J. Prucha 



TABLE 11. Infecting Poweb of Cultures Three Weeks Old 



Medium 334 with 



2 . per cent cane sugar . . . . • 



2 . per cent dextrose 



2 . per cent levulose 



2 . per cent lactose 



2 . per cent galactose 



10 . per cent cane sugar 



20-0 per cent cane sugar 



30 . per cent cane sugar 



40 . per cent cane sugar 



1 . per cent salicin 



. 5 per cent amygdalin 



. 5 per cent resorcin 



. 2 per cent phloroglucin 



. 5 per cent potassium oxalate 



. 5 per cent potassium citrate 



. 1 per cent potassium nitrate 



. 2 per cent potassium nitrate 



. 6 per cent potassium nitrate 



0. 1 per cent calcium nitrate 



0.2 per cent calcium nitrate 



. 6 per cent calcium nitrate 



1 . per cent Witte's peptone 



2.0 per cent Witte's peptone 



5 . per cent Witte's peptone 



. 2 per cent Merck's peptone r 



1 .0 per cent Merck's peptone 



3 . per cent Merck's peptone 



Other media 



Soy bean hay 



Soy bean roots 



Canada field pea hay 



Canada field pea roots 



Sandy soil 



Muck 



Sawdust 



Wheat bran 



Wheat middlings 



Corn meal 



Ground field peas 



Compost 



Partly decomposed cow feces 



Fresh cow feces 



Controls 



Controls 



Controls 



Controls 



Controls 



Nodules 



in 

 flower- 

 pot 1 



Many 



Many 



None 



Many 



Many 



Many 



Few 



Few 



Few 



Many 



Many 



None 



Few 



None 



None 



Many 



Many 



Few 



Many 



Many 



Many 



Many 



Few 



None 



Many 



Many 



None 



Nodules 



in 

 flower- 

 pot 2 



None 

 Few 

 Few 

 Many 

 Many 

 Many 

 Many 

 Many 

 Many 

 Many 

 Many 

 Many 

 Many 

 Many 

 None 

 None 

 None 

 None 

 None 



Many 

 Many 

 None 

 Many 

 Many 

 Many 



Few 



Few 



Few 

 Many 



Few 

 None 



Few 

 None 

 None 

 Many 

 Many 



Few 

 Many 

 Many 

 Many 

 Many 



Few 

 None 

 Many 

 Many 

 None 



None 

 Few 

 Few 

 Many 

 Many 

 Many 

 Many 

 Many 

 Many 

 Many 

 Many 

 Many 

 Many 

 Many 

 None 

 None 

 None 

 None 

 None 



Nodules 



in 

 flower- 

 pot 3 



Many 



Few 



None 



Many 



Many 



Few 



Few 



Many 



Few 



None 



Few 



Few 



Few 



Nona 



None 



Many 



Few 



Few 



Few 



Few 



Many 



Many 



None 



None 



Many 



Many 



None 



None 

 Few 

 Few 

 Many 

 Many 

 Many 

 Many 

 Many 

 Many 

 Many 

 Many 

 Many 

 Many 

 Many 

 None 

 None 

 None 

 None 

 None 



