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https://doi.org/00.00000/0000-0000-0000-0-00

Huseynova L.A. — Doctoral Student; Scientific Research Institute of Plant Protection and Industrial Crops, Kapaz district, st. Aziza Aliyeva, 57, Ganja city, Republic of Azerbaijan, AZ-1001; +994222574781; fitopatoloq.lale@mail.ru; ORCID: 0000-0002-6264-9206

TERRY OR REVERSION OF BLACK CURRANT UNDER THE CONDITIONS OF THE WESTERN PART OF AZERBAIJAN

Аbstract. Blackcurrant (Ribes nigrum L.) is one of the most common berry crops in the western part of Azerbaijan. One of the reasons for the low yield of blackcurrant is the loss of production from viral diseases. One of the common and harmful diseases of blackcurrant of viral etiology is terry or reversion. Signs of the disease are clearly manifested in the spring. The affected bush changes its general appearance. It lags in growth, becomes denser, all changes occur according to the type of growth. Analysis of field studies indicates that in affected plants, reversion is transmitted with planting material harvested from diseased bushes. Crop losses on blackcurrant reach 50-100%. The pathogen was identified and its pathogenicity was determined using microscopy.
It was found that in the western part of Azerbaijan, terry or reversion is the most common viral disease of blackcurrant. The pathogen was identified as BRV (Currant reversion virus). As a result of the measures taken, the spread of the disease decreased to 30%, the yield increased by 1.5 times.

Keywords: black currant, terry or reversion, virus, bush, harmfulness.