Co-Authors:
Zimmerman-Gries, S., Virus Research Laboratory, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
Blodgett, E.C., Virus Research Laboratory, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
Abstract:
Silver-scurf spots were observed during quarantine inspection from 1951-1959 among imported seed potatoes on their arrival in Israel. In 1960, the incidence of silver-scurf-affected tubers was especially common in cvs. Up-to-Date and Ulster Dale. Silver-scurf was frequent among tubers produced from above-mentioned seed, and Helminthosporium solani Dur. & Mont. was identified on samples from imported and local seeds. Transmission from parent set to daughter tubers was observed. Affected tubers produced either: a) hills with completely unaffected yield (Up-to-Date 25-91%, Ulster Dale 0-80%, Avenir 60%, Alpha 0%); b. partially affected hills; or c. completely affected hills (very small percentage in the yield plots and in sterile soil with the exception of Alpha with 70%). Most of the affected tubers were from partially affected hills. The keeping quality of affected tubers and the incidence in various cultivars were described. © 1974 Kluwer Academic Publishers.
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