title: Mazıdağı (Mardin) Yöresindeki Doğal Cevizlerin (Juglans regia L.) Seleksiyonu
abstract: This study was carried out to select promising walnut genotypes during the two years in Mazidagi district, and to describe their tree and fruit traits. In the first step, 65 genotypes were selected from about 500 seedling walnut trees, and their fruit samples were collected. Among these seedling genotypes, 8 walnut genotypes were evaluated as promising. Promising genotypes averagely had fruit weight of 14.55–10.28 g, fruit length of 42.02–35.64 mm, fruit width of 34.46–29.78 mm, shell thickness 
journal: DergiPark (Istanbul University)