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The effects of black raspberry necrosis and raspberry bushy dwarf viruses in cultivar lloyd george raspberry and their involvement in raspberry bushy dwarf disease






Journal of Horticultural Science 54(4): 267-272

The effects of black raspberry necrosis and raspberry bushy dwarf viruses in cultivar lloyd george raspberry and their involvement in raspberry bushy dwarf disease

The effects on growth and yield of 'Lloyd George' raspberry plants graft-inoculated with black raspberry necrosis virus (BRNV), raspberry bushy dwarf virus (RBDV) and BRNV + RBDV were studied in a pot experiment. Each virus impaired some of the growth parameters measured but the effects were usually greatest in doubly infected plants. Such plants were stunted and produced fewer and shorter canes than virus-free controls. These effects resemble the symptoms described for raspberry bushy dwarf disease in this cultivar. Infection with either or both viruses delayed ripening, decreased the mean berry weight and adversely affected fruit form and structure, but total fruit yield was not significantly affected.


Accession: 006661249



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