Leaf Morphology in Quercus Robur L. Genetic Resources across Romania

Abstract

We studied the leaf morphology of pedunculate oak (Quercus robur L.) in seven natural stands. Fourteen leaf descriptors were used. For most of the morphological traits the differences between stands were nonsignificant. For petiole ratio, petiole length and lobe depth ratio were significant and for basal shape were highly significant. By using a Principal Component Analysis (PCA) no groups were distinguished. The values of leaf descriptors are quite similar to those reported in Western Europe.