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Načrt za pospeševanje topolov na področju OLO Ljubljana
Jože Miklavžič, Janez Božič, 1959

Keywords: topoli, Populus sp., Ljubljana, gozdnogospodarski načrti, gozdovi
DiRROS - Published: 12.07.2017; Views: 2186; Downloads: 983
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Spremljanje rasti topolovih nasadov in ekoloških sprememb na obdravskem zemljišču : 1. del
Janez Božič, Lado Eleršek, 1979

Keywords: topoli, Populus sp., gojenje gozdov
DiRROS - Published: 12.07.2017; Views: 2164; Downloads: 777
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Assessment of the condition of Balsam poplar trees (Populus balsamifera L.) in a residental area of Bratsk
Elena 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
.pdf Fulltext (1,84 MB)

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Ectomycorrhizal fungal community in mature white poplar plantation
Marina 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
.pdf Fulltext (847,82 KB)

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