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Variability in Vessel Dimensions Across Select Quercus Species : a Comparative Study of Four European and American Species

Chavenetidou Marina, Tsioras Petros, Karaszewski Zbigniew

Drewno : prace naukowe, doniesienia, komunikaty

2024

Vol. 67, nr 214

Art. no. 192519a

Anatomical features of wood cells and their size variations are key elements of wood identification. This research focuses on microscopic differentiation between four Quercus species: two red oaks (Q. cerris and Q. rubra) and two white oaks (Q. alba and Q. petraea). More specifically, it studies the variation of vessel width in earlywood and latewood. The results show that in earlywood, Q. rubra had the widest vessels (332.27 ± 65.21 μm), followed in descending order by Q. cerris (300.27 ± 57.62 μm), Q. petraea (286.09 ± 58.83 μm), and Q. alba (200.82 ± 43.50 μm). In latewood, Q. cerris had the largest vessels (83.89 ± 20.31 μm), with Q. rubra having a slightly smaller value (74.05 ± 20.31 μm). Q. petraea (35.34 ± 6.11 μm) and Q. alba (26.70 μm) retained their order, revealing a consistent pattern between the wood growth phases. The variability in vessel dimensions was also supported by statistical differences among most species combinations in both earlywood and latewood. The investigation of certain vessel traits may serve as a valuable component of studies related to wood properties and species adaptability in the context of climate change.