20.500.12556/DiRROS-15819 Tree rings, wood density and climate–growth relationships of four Douglas-fir provenances in sub-Mediterranean Slovenia 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. Pseudotsuga menziesii SPEI juvenile phase adult phase latewood share resistance drilling juvenilna faza navadna ameriška duglazija adultna faza delež kasnega lesa rezistografsko vrtanje true false true Angleški jezik Slovenski jezik Neznano 2022-11-21 14:37:50 2022-11-21 14:37:51 2024-07-26 11:19:51 0000-00-00 00:00:00 2022 0 0 Nasl. z nasl. zaslona; Opis vira z dne 21. 11. 2022; 17 str. iss. Vol. 2022 0000-00-00 PostprintKoncna VTisku NiDoloceno 0000-00-00 0000-00-00 2022-11-17 2023-11-17 630*8 1432-2285 10.1007/s00468-022-02362-5 130277891 https://link.springer.com/article/10.1007/s00468-022-02362-5 1 5174d4e1-6999-11ed-a69a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=20924 RAZ_Krajnc_Luka_2022.pdf RAZ_Krajnc_Luka_2022.pdf 1 E5F01AB91ECC0772E16EC35AE341C13A 4835f4bc2ffe06c298669312eea47e505a4f6980c2d4ac8be1f121fdd2aba128 95f993ad-6a3c-11ed-a69a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=20931 Gozdarski inštitut Slovenije 0 0 0