Common pine (Pinus sylvestris L.) geographical crops were planted in the Suzun forestry unit of the Novosibirsk region in 1976 and analysed in the autumn of 2005. Investigations were carried out in 151 model trees of 36 ''climatypes'' (progenies of pine geographical populations. Radial wood on-growths were measured at the soil level from the southern and northern trunk sides and summed up. In total, on the whole material, there was a continuous row from 1979 to 2005. Besides, in 2005, trunk-on-stub diameter (D) and that of breast height (1.3m) (Dbh), also total trunk height (H) and axial shoots annual on-growths were measured in each model (tree sample).
Tree on-growths in height and diameter were successively summed up from 1970 to 2005 and growth curves were obtained for each tree. Their average values were calculated for all trees in each year. As it had been expected, the dependence of 30-year-old trees average height HT on their age turned practically linear.
Interpopulational differences IC were estimated using dispersion analysis on the formulas: λF = F(k-1)/(N-k); IC = λF/(1+λF), where F – Fischer criterion, λF – ratio between factor (interpopulational) dispersion and that of remnant (intrapopulational), N=151 – number of trees, k=36 – number of populations (climatypes). As it follows from the below-mentioned table, the climatypes are well-differentiated in their height, and considerably worse in thei trunk diameter It well accords with the data of earlier investigations (Rogovtsev et al., 2008).
Pine-trees interclimatypic variability ratios for height and diameter
| Trait | F-remove | λF | IC | p-level |
| H | 4.998 | 1.521 | 0.603 | 0.000000 |
| Dbh | 1.830 | 0.557 | 0.358 | 0.009037 |
| D | 2.112 | 0.643 | 0.391 | 0.001629 |
The effect of pine geographical origin on wood annual on-growths as for trunk height and diameter and also in total were estimated on the same scheme. Dynamics of populations effect shares was compared to that of average annual height on-growths and trunk diameter. Contribution of interpopulational differences to total on-growth variability (during growth immitation) is quite stable and hovers at 0.6-0.7 for trunk height and 0.4-05 for diameter. At the same time, the analogous value for annual height on-growth becomes maximal in the 7-8th year and then it has oscilations at 0.25-0.5 synchronous to those of average on-growth. It means that in years favourable for height on-growth it is mostly realised due to climatypes genetic diversity than it is in unfavourable years. Contribution of interpopulational differences annual on-growth variability in diameter oscilates at 0.3-0.5. However, no statistical relation was found as for either average ongrowth deviations in diameter orheight or other indices.
Note. Abstracts are published in author's edition