Hazelnuts are usually propagated by suckers or layering. However, other methods of propagation have been tested with variable results. Grafting is a method that has a few advantages such as fast multiplication rate, earlier fruiting and reducing sucker removal cost on specific rootstocks. Unfortunately, grafting is difficult due to slow formation of callus in hazelnuts. Here, we report the hypo...

Hazelnut (Corylus avellana L.) is affected by dieback (DB) and decline (D) diseases causing significant losses to hazelnut production in the Eshkevarat (Guilan province, northern Iran) as the main region for hazelnut production in Iran. Although, causal agents of these disorders have remained uncertain for many years. During 2017-18, results of a survey on DB and D diseases in hazelnut...

The anatomical and histological development of the graft union in splice grafting hazelnut (Corylus avellana L.) was examined. One-year suckers were used as rootstock scion materials. Grafting done manually first week December. grafted plants kept for 28 days at 26-28 °C 70-80% relative humidity conditions. cross longitudinal sections with a thickness 12-20 microns taken from area by rotary mic...

Transpiration of two heterogeneous broad-leaved woodlands in southern England was monitored by the sap flux technique throughout the 2006 growing season. Grimsbury Wood, which had a leaf area index (LAI) of 3.9, was dominated by oak (Quercus robur L.) and birch (Betula pubescens L.) and had a continuous hazel (Corylus avellana L.) understory. Wytham Woods, which had an LAI of 3.6, was dominated...

This study was carried out to determine oil content, total phenolics, flavonoids, and antioxidant activity (according DPPH FRAP assay) of Corylus colurna (Turkish hazel), 18 Turkish standard hazelnut cultivars (Corylus avellana cvs. Tombul, Palaz, Çak?ldak, Fo?a, Mincane, Sivri, Kara, ?ncekara, Kal?nkara, Cavcava, Yuvarlak Badem, Yass? Kargalak, Uzunmusa, Kan, Allahverdi, Okay 28, Giresun Melez...

Hazelnut shells, a by-product of the kernel industry processing, are reported to contain high amount of polyphenols. However, studies on the chemical composition and potential effects on human health are lacking. A methanol hazelnut shells extract was prepared and dried. Our investigation allowed the isolation and characterization of different classes of phenolic compounds, including neolignans...