DIGITALNA ARHIVA ŠUMARSKOG LISTA
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| ŠUMARSKI LIST 11-12/2009 str. 26 <-- 26 --> PDF |
D. Ballian, E. Mujanović,A. Čabaravdić: VARIJABILNOSTI OBIČNOG BORA(Pinus sylvestris L.) ... Šumarski list br. 11–12, CXXXIII (2009), 577-588 Stefanović,V., 1980: Ekotipska diferencijacija bi-cijska rejonizacija Bosne i Hercegovine. Po sebno jelog bora (Pinus sylvestrisL.) u Bosni i Herce-izdanje br. 17. Sarajevo. govini. Posebna izdanja br. 13. Sarajevo. Vidaković, M. iA. Krstinić, 1985: Genetika i Stefanović,V.,Beus,V.,Burlica,Č.,Dizdare -oplemenjivanje šumskog drveća. Zagreb. vić,H., Vukorep, I. 1983: Ekološko-vegeta- SUMMARY: Experimental regional division of Scots pine (Pinus sylvestris L.) in Bosnia and Herzegovina was initiated with development of framework of the program “Revision of existing and selection of new seed stands, and study of biological traits of Norway spruce, silver fir, Scots pine and European black pine in the function of production of qualitative seed needed for forestry in SRBiH”. During 1989 test surface in Glasinac filed – Sokolac was established with 11 provenances, material from two seed plantations and control group. Research was carried out on diameters, basal areas, heights, volume of medium tree, and total volume per ha of trees which are 21 years old. Analyses carried out on size of medium diameter, basal area, height, and volume on the test surface showed that provenance Romanija-Glasinac had best results. Taking into consideration poor conditions in the place of origin of this population, conclusion could be made that their good results were obtained based on the extremely competitive selection in the unfavorable conditions, and on qualitative genetic construction. Although the trait of survival is not statistically processed because it belongs to the group of qualitative traits, it is very significant because it does not have direct influence to the trait of volume per ha. The best survival was demonstrated by the provenance Romanija-Glasinac, and the poorest by the provenance Zavidovići with minimal portion of survived plants. Statistically significant difference was determined by analysing the height of trees in the test surface, meaning that differentiation between the provenances is still present on the test surface. The best provenances are Romanija- Glasinac, Šipovo, and Bugojno. According to the soil type, which is in this case brown limestone (calcocambisol), sea level, and ecological conditions at the Glamoč plateau, the best provenance is Romanija – Glasinac which has the best productivity under these conditions. Obtained medium heights for Scots pine in this experiment showed that some provenances go above site class I. if they are compared with data from volumetric tables for even aged forests. According to the Wiedemann’s volumetric tables, the provenance Romanija – Glasinac is significantly larger in regards to average basal area and volume from volumetric tables for the site class I. of habitat. Reliable conclusions about productive possibilities of some species, and of a provenance inside some species, can be made only after one third of estimated fertilization. Having that in mind, obtained results up to now are only partially reliable when making conclusions about which provenance is the best for introduction on the defined habitat while good conclusions will be reached in the following period. Present variability intra and inter provenances, which is registered in this experiment, can be used for subsequent selections of material when installing intensive clone or seed plantation. Key words:Scots pine, provenance trial, diameter, bosal area, volume |