Common Hazelnut Production and Its Multiplication in Turkey

Turkey has been the biggest common hazelnut （Corylus avellana L.） production country in the world. The country is an unquestionable leader in this area. The average area of production is within 500 to 800 thousand ha every year, whereas the second biggest country-Italy-has only about 125 thousand ha every year. The paper gives information about the biggest hazelnut producing countries in the world as well as the world＇s biggest exporters and importers. It also shows where in Turkey are the main areas of hazelnut production. It also describes the most important cultivars in its production. Moreover, it shows how the bush plant is propagated, grown, managed and fertilized and the nuts are harvested. It also points out two main insects to be the biggest problem nowadays on the Turkish plantations. Finally, it makes comments on the state＇s subsJdJzation to the pro- duction, research and the newest trials with the use of mechanical harvesters on the plantations.