WOOD RESEARCH Volume 69, Number 1, 2024
DUŠAN JOKANOVIĆ, JOVANA DEVETAKOVIĆ, VESNA NIKOLIĆ JOKANOVIĆ, KRISTINA ŽIVANOVIĆ, LJUBICA MIJATOVIĆ, and IVAN DESIMIROVIĆ

VARIABILITY OF ANATOMICAL AND MORPHOLOGICAL TRAITS OF PINUS NIGRA AND PINUS SYLVESTRIS SEEDLINGS AFFECTED BY DIFFERENT CONTAINER TYPE

In the paper was analysed the influence of three different container types, used for cultivation of Pinus nigra and Pinus sylvestris seedlings, on dimensions of their anatomical (resin ducts width, resin ducts number, tracheid number, tracheid width, wood rays height) and morphological (height, root collar diameter, sturdiness coefficient) elements, and on proportion of wood, bark and pith, as well. Two-factorial ANOVA showed that container type affects a lot all investigated anatomical traits by both species, but on the other side, these species varied between each other just in terms of tracheid width and wood rays height. Based on descriptive statistics, significantly lower values of all studied anatomical elements were recorded by biodegradable compared to plastic containers. As for P. nigra seedlings, they showed the best anatomical performance in Plantagrah I, while Hiko V-120 SS was the most suitable for P. sylvestris. The highest proportion of pith and bark was recorded in biodegradable container. As for morphological parameters, such as height and root collar diameter, higher values were recorded by plastic containers

WOOD RESEARCH Volume 67, Number 4, 2022
DUŠAN JOKANOVIĆ, Tatjana Ćirković-Mitrović, VESNA NIKOLIĆ JOKANOVIĆ, and Radoslav Lozjanin

Variability of wood fibres of mature pedunculate oak in flooded and non-flooded area

The paper deals with anatomical characteristics of wood fibres of Quercus robur L. Fiber length, double-cell wall thickness and fiber lumen diameter were analysed from samples in flooded and non-flooded area along Sava river in Serbia. All anatomical elements were measured from pith to bark in order to establish variation with cambial age, not only between researched sites, but also between individuals within each locality. In this study, there was no statistically significant difference only for mean values of fiber length between individual trees at non-flooded area, and in fiber lumen diameter at flooded area. Increasing of mean values of observed anatomical parameters with cambial age is valid for flooded area (MU „Grabovako-vitojevačko ostrvo 20e“), while for another locality (MU “Blata-Malovanci”) it is the case just for double-cell wall thickness. Mean values of all analysed anatomical elements are bigger in flooded area and this could be a consequence of more suitable ecological conditions for Quercus robur L. development present in this locality. Obtained variations show nonhomogeneous wood fibre features at both localities.

WOOD RESEARCH Volume 65, Number 1, 2020
DUŠAN JOKANOVIĆ, Dragica Vilotić, VESNA NIKOLIĆ JOKANOVIĆ, Sara Lukić, and Tatjana Ćirković-Mitrović

Site influence on anatomical structure of bald cypress

The paper deals with length of tracheids of bald cypress at two alluvial sites in Serbia. Scope of the paper was to establish site inf luence (climate, soil, etc.) on mentioned anatomical feature and to quantify it, as well. Axial tracheid changes have been observed depending on three factors: cambial age, zone inside growth ring and stem height where sampling was performed. The paper established gradually increasing of axial tracheid length with cambial age and that did not depend on zone inside growth ring and stem height. There was also significant inf luence of the zone inside growth ring to axial tracheid length, while stem height where sampling was performed does not have significant inf luence. There was found relation between factors that determine site such as physical and chemical soil properties and climate from one and axial tracheid length from another side.