The Leaf Properties, Stomatal Index and Chlorophyll Content of Turkish Hazelnut (Corylus avellana L.) Cultivars

Abstract

In the present study, leaf micromorphlogical properties, stoma indexs and chlorophll contents of 20 Turkish hazelnut (Corylus avellana) cultivars were studied. Investigated cultivars were “Acı, Allahverdi, Cavcava, Çakıldak, Foşa, Giresun melezi, Incekara, Kalınkara, Kan, Karafındık, Kargalak, Kuş, Mincane, Okay 28, Palaz, Sivri, Uzunmusa, Tombul, Yassı Badem, Yuvarlak Badem”. Three wax ornamentation types are recognized; crust, smooth and granules. Epidermal features, stomatal index and chlorophyll amounts showed some differences between C. avellana cultivars. Stoma width and stoma length were determined to be important for Palaz, Kuş, Yuvarlak Badem ve Yassı Badem cultivars. Stoma index, upper epidermis and lower epidermis width, upper epidermis and lower epidermis length values were determined to be distinctive for Allahverdi, Kargalak, Kara and Mincane. Chlorophyll density was found to be distinctive for Sivri, Çakıldak, İncekara and Acı cultivars The highest similarity was found between Okay 28 and Tombul cultivars with a rate of 0.98. The lowest similarity was found between Sivri-Karafındık, Sivri-Foşa and Sivri-Kargalak with 0.87.