Table 2.
Survival and ECM characteristics of silver birches
| ECM categories | ||||||||
|
Clone/ Line |
Survival % of non-inoculated plants | Survival % of inoculated plants | ECM % | I | II | III | IV | V |
| A | 74 | 76 | 31 | 3 | 2 | 1 | 2 | 1 |
| 23 | 92 | 95 | 83 | 11 | 8 | 3 | 4 | 3 |
| 44 | 95 | 100 | 74 | 14 | 2 | 6 | 3 | 3 |
| 65 | 92 | 87 | 58 | 8 | 5 | 3 | 1 | 2 |
Survival percentages of non-inoculated and inoculated silver birches of clone A and PtCOMT-modified lines 23, 44 and 65, percentages of the ECM plants of all inoculated plants (ECM %) and number of ECM root tips in root systems classified to five categories: I = 1-20 ECMs, II = 20-30 ECMs, III = 30-50 ECMs, IV = 50-100 ECMs, V ≥ 100 ECMs.