Japanese Journal of Phytopathology
Online ISSN : 1882-0484
Print ISSN : 0031-9473
ISSN-L : 0031-9473
Effects of Inoculum Density and Position in Inoculation with Fusarium oxysporumi f. sp. lagenariae on the Sudden Wilt of Watermelon Grafted to Bottle Gourd
Hirotaka KUWATAKeise SHIMADAJun-itsu CHIBASuesaku CHIBA
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1981 Volume 47 Issue 4 Pages 575-576


Watermelon grafted to bottle gourd stock showed sudden wilt symptom by the artificial inoculation of Fusarium oxysporum f. sp. lagenariae at the extremely low level of inoculum density, at which not only the bottle gourd seedlings but also the stems or roots of rootstock exhibited no marked symptom. The sudden wilt of the grafted watermelon was also brought about by the artificial inoculation of only a narrow part of root system of the grafted plants.

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