Chrysanthemums as potential source of Tomato Aspermy Virus infectious for pepper
1989
Stefanec, Z. | Plazibat, M. (Faculty of Science, Zagreb (Yugoslavia))
Results obtained by the investigation suggest that chrysanthemums grown in the district of Zagreb and wider are a potential source of pepper infection with Tomato aspermy virus (TAV) which is, in natural conditions, transferred by aphids, known as vectors of this virus. All the tested pepper varieties have been infected with TAV-Y7 systemically with the appearance of prominent and for some varieties specific symptoms. Under glasshouse conditions, with all varieties except the Morava variety, there was observed a reduction in vigour and fruit size as compared to the control plants. Smaller fruits with all the 6 varieties were often assymetric and variously deformed while with varieties, D-26 and Kalinkova there often appeared a large longitudinal crack on them. With the Feferoni variety necrosis appeared on the top of the stem with the increased growth of the lateral shoots. Under the conditions existing in Yugoslavia, chrysanthemums are certainly the source of TAV infections for particular crops including pepper although detection of the virus in pepper, in natural infections, has not yet been carried out. This papper also provides a detailed description of the symptoms caused by TAV on a number of pepper varieties.
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