Vasilije Isajev

Interpolation of meteorological data by kriging method for use in forestry

Interpolation is a suitable method of computing the values of a spatial variable at the location which is impossible for measurement, based on the data obtained by the measurement of the same variable at the predetermined locations (e.g. weather stations). In this paper, temperature and rainfall values at 39 weather stations in Serbia and neighbouring countries were interpolated aiming at the research in forestry. The study results are presented in the form of an interactive map of Serbia, which allows a fast and simple determination of the analyzed variable at any point within its territory, which is presented by the example of 27 forest sites.

Model of experimental clonal seed orchard for the production of Serbian spruce šPicea omorika /Panc./Purkyne) intraspecific hybrids

The presented model for the establishment of an experimental clonal seed orchard of Serbian spruce was designed based on the results of the analysis and assessment of the genetic potential of Serbian spruce seedling seed orchard at Godovik. Based on the results of the analyses, eight superior half-sib lines of Serbian spruce were selected, of which 24 genotypes were selected. Their hybridisation, by the model of incomplete diallel cross resulted in 21 combinations at the level of half-sib lines, i.e. 48 combinations at the level of parent genotypes. The applied study methods identified the potentially valuable genotypes-cone producers i.e. pollinators, which will be fixed by cloning in the seed orchard of the second generation for the production of the promising hybrids.