Production impacts of forest tree breeding on an example of Norway spruce

Abstract

The present paper evaluates the height, diameter and stem volume of parental tree progenies. These Norway spruce progenies are compared with the control estimated from tables. The control was overperformed in all measured growth parameters. Heights of selected spruce progenies at the age of 26 years ranged from 9.2 m (K10) to 10.7 m (K2). The control height was 6.4 m. In the evaluation of diameters, progeny K4 showed the best mean dbh (13.7 cm) while the progeny K17 was rated as the thinnest (10.5 cm). We compared these data with the control diameter of 6.5 cm. The mean volumes of selected material varied from 0.097 m3 (K9) to 0.047 m3 (K17) while the kontrol presented 0.0172 m3. Keywords: economic efficiency; forest tree breeding; growth; Norway spruce; production

Keywords

• economic efficiency
• forest tree breeding
• growth
• norway spruce
• production