![Sample our Environment & Agriculture journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5934/TOC-Subject-Sample-2021-Environment-Agriculture.jpg"})
SUMMARY
An isolate of Fusarium oxysporum that caused wilt of the Bambarra groundnut (Voandzeia subterraneo) in Tanzania was used to inoculate 44 different cultivars in numerous genera of plants. The fungus was highly virulent only on groundnut. It caused relatively mild external symptoms of wilt on some cultivars of cowpea, thus indicating a relationship to F. oxysporum f. sp. tracheiphilum. Fifty-six different ff. sp. and races of F. oxysporum that cause wilt were essentially nonpathogenic on groundnut, although twelve of them caused slight vascular discoloration, and f. sp. lupini race 3 caused severe symptoms on two plants. The Fusarium from Voandzeia is a new forma specialis, viz., Fusarium oxysporum f. sp. voandzeiae.