ISHS Acta Horticulturae 236: V International Symposium on Small Fruit Virus Diseases
STRAWBERRY MOTTLE VIRUS STUDIES IN CZECHOSLOVAKIA |
| Authors: | J. Polák, H. Bezpalcová |
| Abstract:
In 1985 and 1986, tests were carried out to determine the incidence of strawberry mottle virus (SMV) in some strawberry cultivars grown in selected Czechoslovakian plantations. Leaf grafts were made to Fragaria vesca indicator clones UC-1, EMK and Fv-72. Mild spotting and slight roughening and narrowing of the leaflets of inner leaves were observed four to five weeks after grafting. Mechanical transmission of the virus was possible from the indicator plants to Chenopodium quinoa plants in which local chlorosis of the inoculated leaves and spotting and mottle of new leaves occurred. Mechanical transmission of SMV from infected strawberry cultivars to C. quinoa was also successful. Virus-like isometric particles about 20 nm in diameter were detected in ultrathin sections of SMV-infected strawberry and C. quinoa leaves. SMV is common in plantations of strawberry and is more widespread than strawberry crinkle virus (SCV) in Czechoslovakia. Strawberry cultivars Red Gauntlet, Confitura, Induka, Karmen, Tenira, Ostara, Dagmar, Rabunda, Hummi Kletter and Lidka were the ones most frequently infected with SMV in the plantations tested. | |
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