Studies of Bacillus Radicicola of Canada Field Pea 11 

 TABLE 1. Laboratory Numbers, Coaiposition, and Reaction of Media 



Laboratory number 



Composition 



Reaction 



Medium 101 



0.2 gram MgSO^ 



1 gram KH>P04 



^ 





. 3 gram Ca (NO;,)^ 



• Not changed 





0.01 gram Fed, 



1000 cc. distilled water 



Medium 300 . 



15 grams agar 



3 grams Liebig's beef extract . 



10 grams Witte's peptone 



1000 cc. distilled water 



+ 1, Fuller's scale 



^vledium 310 : Same as 300, plus 2 per cent dextrose . 



Neutral 



Medium 331 . 



15 grams agar 



10 grams cane sugar . 



1 gramKH.P04.... 



0.2 gram MgSO..., 



Not changed 



IMedium 334 



15 grams agar 



. 2 gram KoHPO; 



" 





2 gram MgSO 







2 gram XaCl 



• Not changed 





. 2 gram CaSO; 





. 2 gram CaCO 







1000 cc. tap water 









' 



Medium 335 1 Same as 334, plus 20 grains cane sugar 



Not changed 



Medium 337 \ Same as 335, plus 10 grains Witte's peptone. . . Not changed 



Medium 400 



15 grams agar 



3 grams Liebig's beef extract . . . 



■ 





20 grams Witte's peptone 



1000 cc. distilled water 



■ +1, Fuller's scale 







Crone's solution .... 



1 gram KNO3 



1 

 1 



■ Not changed 





0.5 gram Fe3 (POO. 



. 25 gram CaSOj (gypsum) 



2000 cc. distilled water 







Pfeffer's solution. 



4 grams Ca(NO.)' 



^ 





1 gram KXOi 







1 gram MgS04 







. 5 gram KCl 



!■ Not changed 





06 gram FeCla 







6000 cc. distilled water 











