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6. Poročilo o preskusu št.: LVG 2021-025 : opis vzorca: LVG2021/00046: Populus, veja (z listi ali brez) ali poganjki, LVG2021/00047: Populus, veja (z listi ali brez) ali poganjki : namen testiranja: LVG2021/00046: sum na: Gliva, LVG2021/00047: sum na: GlivaNikica Ogris, Tašja Cvelbar, Barbara Piškur, 2021 Keywords: varstvo gozdov, morfološke analize, topol, Populus, potaknjenec, Diaporthe, odmiranje skorje, glive, bolezni
DiRROS - Published: 13.05.2021; Views: 426; Downloads: 163
 Fulltext (1000,09 KB) |
7. Poročilo o preskusu št.: LVG 2021-344 : opis vzorca: Populus tremula, les, lubje, sekanci : namen testiranja: sum na: Anoplophora glabripennisMaarten De Groot, Peter Smolnikar, 2021 Keywords: varstvo gozdov, morfološke analize, Populus tremul, trepetlika, Anoplophora glabripennis, azijski kozliček
DiRROS - Published: 29.10.2021; Views: 220; Downloads: 0 |
8. Assessment of the condition of Balsam poplar trees (Populus balsamifera L.) in a residental area of BratskElena Runova, Vasilij Verkhoturov, Lyudmila Anoshkina, Ivan Garus, 2021 Abstract: In this study, we investigated the health status of balsam poplar (Populus balsamifera L.) trees in a residential area of the city of Bratsk (Irkutsk Oblast, Russia). Visual and instrumental assessment of the health status of pruned and unpruned trees was performed. The identified internal defects in the tree were analyzed with a Resistograph device, which enabled the extent of decayed wood to be determined. Visual analysis revealed various types of damage: dried branches, brittle crowns, frost cracks, mechanical damage, curvature of trunks, decay and inclusions of foreign bodies. We compared trees with and without canopy pruning. We found that pruned trees were significantly more damaged than non-pruned trees. Decomposing wood at different stages of development was found in all the trees studied. A tree passport combining the visual and instrumental assessment data was compiled for each tree. The results of the research were used to formulate conclusions and recommendations for improving the management of urban trees in order to restore their ecological and aesthetic functions.
Keywords: Populus balsamifera L., visual analysis, Resistograph, urban area, wood, decay
DiRROS - Published: 01.12.2021; Views: 929; Downloads: 648
Fulltext (1,84 MB) |
9. Ectomycorrhizal fungal community in mature white poplar plantationMarina Milović, Saša Orlović, Tine Grebenc, Marko Bajc, Branislav Kovačević, Hojka Kraigher, 2021 Abstract: Ectomycorrhizal communities are rarely studied on seasonal basis, especially in poplar plantations. In this study we analysed the ectomycorrhizal community in a mature twenty-year-old white poplar (Populus alba L.) plantation during four consecutive seasons. Using morpho-anatomical and molecular identification 30 taxa of ectomycorrhizal fungi were recorded of which 15 were identified to the species level, 12 to the genus level, 2 to the family, and one morphotype of ectomycorrhizae remained unidentified. The most abundant among identified ectomycorrhizal fungi were: Inocybe griseovelata, Inocybe splendens, Tuber rufum, and Tomentella sp. 2, which together represented up to 50% of all ectomycorrhizal root tips. The number of ectomycorrhizal fungal taxa and the percentage of vital ectomycorrhizal root tips were highest in winter and spring, respectively. The diversity indices of ectomycorrhizae, number of vital ectomycorrhizal root tips, and total fine roots in the studied poplar plantation did not differ between seasons. Ectomycorrhizal fungi belonging to Inocybaceae family and the short-distance exploration strategy were dominant in all four seasons. On the other hand, the abundance of ectomycorrhizal root tips belonging to the medium-distance exploration strategy type was significantly higher in spring in comparison with autumn and winter.
Keywords: Populus alba L., Ectomycorrhizal diversity, morpho-anatomical characterization, molecular identification, seasons
DiRROS - Published: 03.12.2021; Views: 255; Downloads: 101
Fulltext (847,82 KB) |
