Fiisarium in Tuber Rot and Wilt of Potato 



4i 



grew in N/256 solution. N/250 butyric acid was toxic to F. Iri- 

 mothecioides, while F. oxysporum grew in it. 



Dry weight (in milligrams) formed in 12 days in various concentrations 



OF ACID 



A set of experiments was run also in which solanin in various 

 percentages was added to glucose media. Because of the high 

 cost of solanin, only 1 cc. solution was used in each test. The 

 results are given in table X. 



These differences, that is, greater versatility in the use of carbon 

 sources, greater resistance to inhibition, and intoxication, may well 



