Turkey is the biggest producer of hazelnut (Corylus avellana L.) in the world, with a total cultivation area of more than 600,000 hectares, a total annual yield over 800,000 tonnes, and an average yield of around 1.2 tonnes ha in 2008 (FAO, 2008). Several bio-constraints negatively affect hazelnut production, such as pests, diseases and weeds (Anonymous, 1995). Among them Pestalotiopsis guepini...

Background: Paclitaxel (TaxolTM) is an important anticancer drug with a unique mode of action. The biosynthesis of paclitaxel had been considered restricted to the Taxus species until it was discovered in Taxomyces andreanae, an endophytic fungus of T. brevifolia. Subsequently, paclitaxel was found in hazel (Corylus avellana L.) and in several other endophytic fungi. The distribution of paclita...

Species interactions in mixed plantations can influence tree growth, resources capture and soil fertility of the stands. A combined approach tree-ring analyses carbon stable isotope was used to check growth water use efficiency two species, Populus alba L. Juglans regia L., intercropped with each other N-fixing or competitive production species. Furthermore, were performed understand how differ...