Japanese Journal of Phytopathology
Online ISSN : 1882-0484
Print ISSN : 0031-9473
ISSN-L : 0031-9473
Difference in Pathogenicity to Pumpkins (Cucurbita spp.) Used for Stocks of Bottle Gourd Fusarium Wilt Organism (Fusarium oxysporum f. sp. lagenariae) Collected from Different Regions in Japan
Yoshikuni NOMURA
Author information

1992 Volume 58 Issue 5 Pages 769-772


Twenty-two isolates of the bottle gourd Fusarium wilt organism (Fusarium oxysporum f. sp. lagenariae) were collected from 22 regions of 8 prefectures in Japan and examined for their pathogenicity to pumpkins and bottle gourds. Some isolates had pathogenicity to Cucurbita ficifolia of a pumpkin plant, but some didn't. They were classified into 4 groups according to the pathogenicity decided on the basis of disease incidence days of the pumpkin; strong, moderate, weak and no pathogenicity. All of them had pathogenicity to bottle gourds, but had no pathogenicity to C. moschata and C. maxima×C. moschata.

Information related to the author
© The Phytopathological Society of Japan
Previous article Next article