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Table II
Basic statistics, variance components, significance levels and heritability
estimates (
and
for the spring
and autumn frost damage traits. Population was considered as a fixed factor.
| Mean | Std | Population | Variance comp. |
(s.e.) |
 (s.e.) |
||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Fa | Pr > F | Fam (P) | Error | ||||||||
| Field traits | |||||||||||
| Bud burst in spring 2006 (BB06) | 3.2 | 1.26 | 66.59 | *** | 0.03 | ** | 0.38 | 0.19 (0.03) | 0.49 (0.10) | ||
| Leaf fall in autumn 2006 (LF06) | 4.1 | 1.29 | 24.10 | *** | 0.03 | * | 0.49 | 0.17 (0.02) | 0.47 (0.09) | ||
| Injury traits | |||||||||||
| Stem damage in spring (SD1) | 1.9 | 1.09 | 20.10 | *** | 0.01 | 0.72 | |||||
| Terminal bud damage in spring (TB1) | 1.0 | 1.00 | 29.45 | *** | 0.04 | * | 0.46 | 0.22 (0.03) | 0.51 (0.10) | ||
| Dead lateral bud % in spring (DBP1) | 39.3 | 34.90 | 19.19 | *** | 0.05 | * | 0.61 | 0.21 (0.03) | 0.50 (0.10) | ||
| Stem damage in autumn (SD2) | 2.0 | 1.00 | 4.23 | ** | 0.00 | 0.80 | |||||
| Terminal bud damage in autumn (TB2) | 1.0 | 1.00 | 5.10 | ** | 0.00 | 0.56 | |||||
| Dead lateral bud % in autumn (DBP2) | 38.1 | 40.26 | 4.64 | ** | 0.02 | 0.67 | |||||