ISHS Acta Horticulturae 777: IX International Rubus and Ribes Symposium
VIRUS INCIDENCE IN RASPBERRIES, BLACKBERRIES AND RED CURRANT COMMERCIAL PLANTINGS OF CENTRAL AND SOUTH CHILE |
| Authors: | J.T. Matus, C. Medina, P. Arce-Johnson |
| Keywords: | ELISA, ApMV, ArMV, ToRSV |
| Abstract:
For the last decade, few viral diseases have been reported on berry fruit crops in Chile, although a large number of different symptoms have been observed. To determine the occurrence of the most representative viral infections in these berry crops, serological surveys based on ELISA testing for six different viruses have been carried out for the last five years in raspberries, blackberries and red currants among other species. Preliminary random assays showed high incidence levels of viruses in these crops, in which several of the symptomless plants tested positive. Targeted surveys have also been conducted the last two years that included a total of 82 hectares of commercial plantings. Leaf samples were collected from plants in the field from the Center-North zone (Metropolitan Region), and in the Southern locations Curicó, Chillán, Los Ángeles and Osorno. The threshold for positive samples was twice the average value for the negative controls. Raspberries and blackberries were infected with one or more of the following viruses: Arabis mosaic virus (ArMV), Apple mosaic virus (ApMV), Raspberry bushy dwarf virus (RBDV) and Tomato ringspot virus (ToRSV). Red currants were infected with either ArMV or ToRSV. | |
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