Table 1.
Mean Flavescence dorée phytoplasma (FDP) load measured for different cultivars, expressed as FDP cells/ng plant DNA ± Standard Error, and acquisition from different grapevine varieties expressed as FDP-PCR-positive Scaphoideus titanus out of total tested insects.
| Variety | Number of Plants Used for FDP Quantification | FDP Load * | Number of Plants Used for Acquisition | PCR Positive/Total Tested Insects |
|---|---|---|---|---|
| Arneis | 12 | 230.50 ± 55.88 a | 3 | 45/132 |
| Brachetto | 9 | 1136.19 ± 177.37 b | 2 | 16/41 |
| Dolcetto | 7 | 677.17 ± 171.54 b | 2 | 30/62 |
| Freisa | 3 | 1090.00 ± 346.58 b | 3 | 37/89 |
| Moscato | 12 | 1216.81 ± 386.59 b | 5 | 16/178 |
| Timorasso | 4 | 1294.70 ± 378.72 b | 4 | 22/101 |
* Different letters refer to different mean values separated through the Holm–Sidak multiple comparison test.