A PHYSR »L< iGICAL STUDY OF TWO STRAINS ( >F 



FUSARIUM IX THEIR CAUSAL RELATK >N T< l 



TUBER ROT AND WILT OF POTATO 



CONTRIBUTIONS FROM THE HULL BOTANICAL LABORATORY 219 

 George K. K. Link 



(WITH THIRTEEN FIGURESi 



There is little doubt among phytopathologists that members of 

 the genus Fusarium play an important role in producing diseased 

 conditions in many plants, both wild and cultivated. According to 

 Wollenwebek (41), Fusarium spp. produce wilt in members of 

 the following families: Liliaseae, Bromeliaceae, Musaceae, Solana- 

 ceae, Convolvulaceae, Leguminosae, Malvaceae, Linaceae, Cucur- 

 bitaceae, Cruciferae, Compositae, Araliaceae, Caryophyllaceae. 

 and Pedaliaceae. 



History 



The genus Fusarium was established by Link (20, 21) in 1809, 

 and Fusarium species were reported on rotted and ring-discolored 

 tubers by Maktics in IS 12. Harttg in 1S46, and Sen aciit in 1S.V,. 

 Pizzigon] (29) and Wehmer (38, 39 1 demonstrated by experi- 

 mental inoculation that Fusarium species can bring about tuber 

 rot. They referred to the Fusarium in question as F. solani. 

 < (thers, however, among them Frank (11, 12), repeating their work, 

 obtained negative results so far as Fusarium species were concerned ; 

 while De Bary (6 i and many others regarded the Fusarium spp. 

 as nothing more than obligate saprophytes. 



RESEARCH BULLETIN NO. 9. AGR. EXP. STATION OF NEW'.. 



