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The results of interpopulation variability of morphometric parameters of European beech (Fagus sylvatica L.) seedlings originating from eight populations from the part of natural distribution area in Serbia are presented in this paper. The studied populations of Dubašnica, Jastrebac, Boranja, Fruška Gora, Mali Pek, Goč, Beljanica, and Javor have various ecological and vegetational characteristics. The results of this paper refer to root collar diameter and height of seedlings at the age of 1+0 and 2+0. Analysis of variance showed a statistically significant difference between the populations in terms of the studied morphological traits of seedlings (p

Background and Purpose: Knowledge of the interaction between plant and climatic conditions is of great importance in establishment of new forests, especially in the introduction. Taxodium is an allochthonous species in Europe and this paper presents the data on the success of its introduction and adaptability to site conditions. Material and Methods: For the analysis of the climate characteristics in Bačka Palanka have been used the data of the Republic Hydrometeorological Service of Serbia for the period 1981-2010 regarding meteorological station Rimski Šančevi. Dendrometric analysis was performed on the dominant trees of Taxodium by taking an increment core at breast height using Pressler drill. On the increment cores was measured diameter increment per each year of the observed period. By the regression analysis was determined the correlation between the diameter increment and climate elements. Results and Conclusion: By research of influence of climate factors on the diameter increment of Taxodium trees can be concluded that with increasing of values of mean annual temperature and mean temperature during the growing season comes to a reduction in size of the diameter increment. The increase of the quantity of precipitation over a year, particularly during the growing season, leads to the increase of the diameter increment, and vice versa.

Background and Purpose: The aim of present research is to study intra- and inter-population genetic variation in Austrian pine by the application of biochemical markers. A better knowledge of the genetic potential of Austrian pine populations will enhance the production of seed and planting material, and in this way also the success of afforestation and the establishment of Austrian pine specific-purpose plantations. Material and Methods: The polymorphism of protein markers was determined based on the selected genotypes originating from six populations (seed stands) in Serbia. Based on the derived electrophoregrams, qualitative and quantitative differences (number and pattern) in protein fractions were identified and the seed protein profile was constructed for each tree, as well as for each of the six study populations. Analysis of protein markers was performed using two statistical methods, NTSYS and correspondence analysis. Results and Conclusion: The conservativeness of some polypeptide, i.e. the presence in all analysed genotypes is showed. On the other hand, some protein fractions were variable at the population level, and some were variable depending on the population. The degree of genetic variation among the populations was higher than the variation within the populations. There was also a high genetic variation in seed proteins within the analysed populations. Both methods (NTSYS and correspondence analysis) give the same arrangement of the analyzed populations, whereby, because of a different view of genetic distances, they can and should be combined, enabling easier and more precise understanding of mutual relationships of the observation units.