Table 5.
Disease severity of symptomatic plants for the vineyards MOG, CAS and OSI (2014, 2015).
| Vineyard | Year of survey | Disease severity of asymptomatic and symptomatic plants (1–4) [mean ± SE (n)] | ||
|---|---|---|---|---|
| Symptomatic | ||||
| Always (AS) | Annual new (aNS) | Previously recovered (SRec) | ||
| MOG | 2014 | 2.69 ± 0.16 (39) a | 2.54 ± 0.08 (75) a | |
| 2015 | 2.40 ± 0.19 (15) a | 2.49 ± 0.10 (33) a | 2.44 ± 0.24 (11) a | |
| CAS | 2014 | 3.19 ± 0.04 (392) a | 2.79 ± 0.05 (344) b | |
| 2015 | 3.01 ± 0.06 (177) a | 2.54 ± 0.04 (302) c | 2.71 ± 0.09 (65) b | |
| OSI | 2014 | 2.98 ± 0.06 (211) a | 2.77 ± 0.07 (202) b | |
| 2015 | 2.85 ± 0.09 (85) a | 2.67 ± 0.08 (88) b | 2.93 ± 0.13 (28) a | |
These data were statistically analysed according to the year of survey and according to different categories of symptomatic plants (AS, aNS, SRec), applying Turkey’s HSD test for multiple comparison of means, at P ≤ 0.05 using R software (ver. 3.1.2, R Development Core Team) equipped with ‘car’ package. AS, plants always showing symptoms in previous years; aNS, plants with symptoms that were recovered or asymptomatic in previous years; SRec, plants with symptoms that in previous years were recovered. Numbers in brackets represent plants in each category.