EFFECTS OF RASPBERRY BUSHY DWARF VIRUS ON FRUIT TRAITS IN FIVE RASPBERRY CULTIVARS

Raspberry bushy dwarf virus (RBDV) is a serious problem in all red raspberry (Rubus idaeus L.) producing areas. RBDV is a pollen-borne virus that can affect drupelet set, resulting in crumbly fruit, but symptom expression appears to differ among raspberry genotypes.
This study was undertaken to determine effects of RBDV on fruit of selected raspberry cultivars grown in the Pacific Northwest region of the U.S. Plants infected with RBDV and noninfected plants of five cultivars (‘Cascade Bounty’, ‘Chilliwack’, ‘Malahat’, ‘Meeker’ and ‘Tulameen’) were established in a replicated factorial design, and evaluated for yield, fruit weight, fruit firmness, drupelet number, and drupelet weight.
Overall virus effects on fruit quality were lower firmness, fewer drupelets, and larger drupelets.
However, ‘Malahat’ and ‘Tulameen’ were largely relatively unaffected by virus infection, giving rise to a cultivar x RBDV interaction on several measurements.
Symptom expression in this planting may be influenced by the presence of other viruses.

X International Rubus and Ribes Symposium

P.P. Moore , W.K. Hoashi-Erhardt

Rubus idaeus, crumbly fruit

https://doi.org/10.17660/ActaHortic.2012.946.42