Color Variations of Turkey Oak (Quercus cerris L.) Wood from Different Types of Growing Sites

This study investigates the color variations of Turkey oak (Quercus cerris L.) wood originating from different regions in Hungary and different growing site types. Samples were collected from pure and mixed stands under both good and poor growing conditions across several regions. Color parameters were monitored and presented using the CIE L*a*b* color measurement system. Significant differences were detected between sapwood and heartwood, with sapwood being lighter and more yellowish. Growing site type had a marked effect on color parameters, especially on lightness (L*), confirming the influence of site quality and stand composition. Within-tree color homogeneity was generally high, although mixed stands under poor conditions exhibited greater variation, up to 17.6%. Pure stands produced more uniform color, indicating their higher suitability for industrial uses requiring visual consistency. These results contribute to our understanding of Turkey oak’s esthetic and material properties, and support its broader utilization in furniture and interior applications.