The central position of each single QTL was determined by the position where the highest LOD was reached on the linkage map, i.e QTL-LOD peak. The confidence interval in centimorgans of each QTL corresponded to a LOD score drop of 1 and 2 on either side of the likelihood peak, i.e. ...
Similarly to our previous study on the growth of Scots pines [38], the following Norway spruce yield parameters were examined: tree number per hectare (N), stand-level competition index (CI), quadratic mean diameter (Dq), mean height (Hq), distribution of mean diameters over mean tree heigh...
[73] observed that approximately equal numbers of western pine beetle (D. brevicomis LeConte) landed on healthy and diseased ponderosa pines (P. ponderosa Dougl. ex Laws.) and non-host species that were either eventually colonized or rejected. Spruce beetle has been similarly observed to ...
This is partly due to the damage caused by moose and other browsing mammals when grazing amongst young Scots pines and birches in wintertime and eating their shoots [16]. The planting of Norway spruce on less fertile sites may reduce browsing damage. However, it may also reduce forest ...
Article Generalized Nonlinear Mixed-Effects Individual Tree Crown Ratio Models for Norway Spruce and European Beech Ram P. Sharma * , Zdeneˇk Vacek and Stanislav Vacek Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Suchdol, Kamýcká 129, 165 21 Prague 6,...