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  • Author or Editor: Francis J. Lawrence x
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Red raspberry (Rubus ideas L.) selection fields in Oregon were screened to determine the incidence and prevalence of Raspberry Bushy Dwarf Virus (RBDV), a pollen-borne virus, using enzyme-linked immunosorbent assay (ELISA). In total, 365 genotypes were tested from three different fields which contained both junebearing (JB) and primocane fruiting (PF) clones. Positive RBDV infected genotypes were 29% JB and 65% PF; 30% JB and 72% PF; 42% JB and 64% PR in the 1991, 1989-90, and 1985-89 established fields, respectively. Examination of all pedigrees of RBDV positive and negative JB selections were very similar containing both susceptible and resistant cultivar parents, especially `Willamette,' considered immune. The PF selection pedigrees were very different from the JB pedigrees with the resistance status of the cultivar parents largely unknown. RBDV resistant genotypes from these selection plots could be useful parents in breeding programs.

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