Tomato necrosis devastated the tomato crop in the Basilicata region of Italy in 1988. Several hundred tomato (Lycopersicon esculentum) seedlings representing the cultivars UC82B, Rutgers, Bandera, and Italpeel were preventively inoculated or vaccinated with cucumber mosaic virus (CMV) strain S containing the nonnecrogenic satellite S-CARNA 5 (CMV-associated RNA 5) and placed in a commercial tomato field in the Basilitica region of southern Italy to test for protection against tomato necrosis. When surveyed in July 1989, the protective effect of the vaccination was greater than 95%. The fruit yields from the protected plants were double those of the nonprotected controls (.)
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D. Gallitelli (1991) studied this question.
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