Available Online: http://www.ejpau.media.pl/volume5/issue2/forestry/abs-05.html
THE RELATIONSHIP BETWEEN THE VIABILITY AND GEOMETRIC CHARACTERISTICS OF BEECHNUTS (FAGUS SILVATICA L.)
Pawe│ Tylek, Jˇzef Walczyk
The present demand for beech seeds in Poland has stabilised at a level of about 80 - 85 tonnes per year. Economy of the forest nursery production requires seeds of high genetic quality and good germination value. The geometric parameters of the seeds form the basis for selection. The size of seeds, as their most important physical property, has a particular importance during the evaluation of their viability, as well as in the process of cleaning and storage. The aim of this paper is the analysis of the geometric characteristics of the nuts of the European Beech, and the relationship to their vitality. The vitality has been determined on the basis of an evaluation of embryo-development by X-ray analysis. Measurements of the geometric parameters were made using computer- aided image analysis. A measuring device developed in the Department of Forest Works Mechanisation of the Agriculture University in Cracow was used. Results of the studies are presented in the form of tables and histograms, dividing the seeds
Key words: separation properties, geometric properties, sorting process, beech seeds.