The Journal "Agriculture and Forestry"
Časopis "Poljoprivreda i šumarstvo"
- Since 1955 -
Year 2021, Volume 67 Issue 1 (31.03.2021)
| Year : | 2021 |
| Volume : | 67 |
| Issue : | 1 (31.03.2021) |
| Authors : | Oleksiy SHEVCHENKO, Tetiana SHEVCHENKO, Halyna SNIHUR, Irena BUDZANIVSKA |
| Title : | EPIDEMIOLOGICAL PATTERNS, PREVALENCE AND SEASONAL DYNAMICS OF DIFFERENT VIRUSES IN SUSCEPTIBLE CUCURBIT CROPS |
| Abstract : | Vegetables represent valuable food source and are cultivated worldwide. Cucurbits are of great importance for farmers, and viruses endanger their profitable production. Monitoring of vegetable viruses in Ukraine showed that cucumber mosaic virus (CMV), zucchini yellow mosaic virus (ZYMV), and watermelon mosaic virus (WMV) were the most harmful and common viruses in reference regions. This work was focused on establishing sources of virus introduction and/or maintenance in a population of susceptible crops, as well as on assessing relative changes in virus-infected symptomatic plants during the vegetative season in open field conditions. Samples were collected based on visual symptoms on leaves and fruits. For virus indication, commercial DAS-ELISA kits for CMV, ZYMV, and WMV were used (Loewe, Germany). Following this work, epidemiological patterns for viruses infecting vegetable crops based on their biological properties were discovered. Seed transmission was confirmed as an important way of spreading of ZYMV and CMV, and often neglected source of viruses in the ecosystems requiring special control for pathogens with wide host range (CMV). CMV was the commonest virus found in symptomatic plants (21%) followed by ZYMV (14%) and WMV (8%). A large portion (18%) of mixed virus infection was typically induced in Ukraine by the following virus groups: CMV/ZYMV, CMV/WMV, ZYMV/WMV, and rarely CMV/ZYMV/WMV. Field experiments showed steep decline of healthy plants from the end of May until the end of August, in parallel to an increase of virus-infected cucurbits. CMV was detected starting from the beginning of the experiment. Similarly, WMV was also found during the duration of screening with sharp increase of diseased plants by the end of the season. ZYMV was detected only in July with subsequent decrease in the number of ZYMV-positive samples as opposed to WMV. Artificial ecosystems were demonstrated as important factors maintaining populations of viruses infecting vegetable crops. |
| For citation : | Shevchenko, O., Shevchenko, T., Snihur, H., Budzanivska, I. (2021): Epidemiological patterns, prevalence and seasonal dynamics of different viruses in susceptible cucurbit crops. Agriculture and Forestry, 67 (1): 73-82 |
| Keywords : | cucumber mosaic virus, zucchini yellow mosaic virus, watermelon mosaic virus, cucurbit, Ukraine |
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