1. Poročilo o preskusu št.: LVG 2023-037 : vzorec št. 2023/00176Nikica Ogris, Maarten De Groot, 2023, expertise, arbitration decision Keywords: varstvo gozdov, morfološke analize, bela jelka, Abies alba, jelov vejni lubadar, Pityophthorus pityographus, sušni stres, poškodba zaradi toče, duglazija, Pseudotsuga menziesii, sajasti osip duglazije, Nothophaeocryptopus gaeumannii, merijski osip duglazije, Rhabdocline parkeri
Published in DiRROS: 20.06.2023; Views: 126; Downloads: 20
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3. Izbor drevesnih vrst z največjim neizkoriščenim potencialom uporabnosti lesa v luči podnebnega segrevanja in prihodnjih sprememb vrstne sestave slovenskih gozdov : Projekt REWINNUSE: Izroček št. 1.2.1Luka Krajnc, Polona Hafner, Jožica Gričar, 2022, treatise, preliminary study, study Keywords: kakovost lesa, perspektivne drevesne vrste, Quercus cerris, cer, Robinia pseudoacacia, navadna robinija, Populus sp., topol, Pinus nigra, črni bor, Pseudotsuga menziesii, navadna ameriška duglazija, Castanea sativa, pravi kostanj
Published in DiRROS: 27.03.2023; Views: 262; Downloads: 38
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4. Tree rings, wood density and climate–growth relationships of four Douglas-fir provenances in sub-Mediterranean SloveniaLuka Krajnc, Jožica Gričar, Jernej Jevšenak, Polona Hafner, Robert Brus, 2022, original scientific article Abstract: Tree rings, wood density and the climate–growth relationship of four Douglas-fir provenances were analysed separately for the juvenile and adult phases. Four provenances were selected from an existing IUFRO provenance trial planted in 1971 based on their diameter at breast height and vitality. Increment cores were extracted from individual trees, on which we measured tree-ring widths (RW), earlywood widths (EWW) and latewood widths (LWW). Wood density was assessed in standing trees using resistance drilling. The climate–growth correlations were calculated between provenance chronologies of RW, EWW, LWW and latewood share, and the day-wise aggregated Standardised Precipitation-Evapotranspiration Index (SPEI). The analysis was done separately for the juvenile and mature phases of growth. Provenances 1064 (Jefferson) and 1080 (Yelm) exhibited larger annual radial increments than provenances 1028 (Merrit) and 1089 (Cathlamet). The two provenances with the highest annual radial increment in the juvenile phase did not exhibit the same trend in the adult phase. In all provenances, RW, and consequently EWW and LWW, were wider in the juvenile than in adult phase. The share of latewood was in all cases higher in juvenile wood than in mature wood. All four provenances had similar wood densities in both analyzed growth phases. Our analysis showed that when selecting the most promising provenance for planting, possible changes in relative growth rate from the juvenile to adult phase need to be considered.
Keywords: Pseudotsuga menziesii, SPEI, juvenile phase, adult phase, latewood share, resistance drilling
Published in DiRROS: 21.11.2022; Views: 255; Downloads: 48
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5. Poročilo o preskusu št.: LVG 2021-042 : opis vzorca: Pseudotsuga menziesii, veja (z listi ali brez) ali poganjki : namen testiranja: sum na: GlivaNikica Ogris, Maarten De Groot, 2021, expertise, arbitration decision Keywords: varstvo gozdov, morfološke analize, duglazija, Pseudotsuga menziesii, Rhizosphaera pini, rjavenje smrekovih iglic, Phomopsis, Pityophthorus pityographus, jelov vejni lubadar
Published in DiRROS: 10.06.2021; Views: 672; Downloads: 239
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6. Poročilo o preskusu št.: LVG 2020-055 : opis vzorca: 10139882: Pseudotsuga menziesii, veja (z listi ali brez) ali poganjki, 10139875: Pseudotsuga menziesii, veja (z listi ali brez) ali poganjki : namen testiranja: 10139882: sum na: Fusarium circinatum, 10139875: sum na: Fusarium circinatumNikica Ogris, Barbara Piškur, Andreja Kavčič, Zina Devetak, Špela Jagodic, 2020, expertise, arbitration decision Keywords: varstvo gozdov, morfološke analize, borov smolasti rak, Fusarium circinatum, Gibberella circinata, duglazija, Pseudotsuga menziesii, jelov vejni lubadar, Pityophthorus pityographus
Published in DiRROS: 13.07.2020; Views: 1247; Downloads: 0 |
7. Poročilo o programu preiskave Fusarium circinatum (ex. Gibberella circinata) za leto 2019Nikica Ogris, Barbara Piškur, 2019, treatise, preliminary study, study Keywords: varstvo gozdov, morfološke analize, borov smolasti rak, Fusarium circinatum, Gibberella circinata, bor, Pinus, duglazija, Pseudotsuga menziesii, kontrola pasti, vektorji
Published in DiRROS: 31.01.2020; Views: 1571; Downloads: 40 |
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9. Rdeči osip duglazije (Rhabdocline pseudotsugae)Ana Brglez, Nikica Ogris, Barbara Piškur, 2019, professional article Keywords: varstvo gozdov, karantenski organizmi, duglazija, Pseudotsuga menziesii, gliva, Rhabdocline pseudotsugae, rdeči osip duglazije
Published in DiRROS: 08.08.2019; Views: 2152; Downloads: 618
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