Hazelnut variety Istarski Duguljasti is mainly cultivated in the Istria region and other areas of former Yugoslavia. This variety is characterized by early flowering and good yield. The plant can be grown as a trained dwarf in its first or second year or as a bush on a rootstock of chestnut, which contributes to its resilience and productivity.
The fruits of Istarski Duguljasti are large and elongated, with a dark brown shell adorned with dark stripes. Each fruit weighs approximately 3.4 grams. The hazelnut kernels are yellow-white in color and have a pleasant taste, making them popular for consumption and processing. The thin shell facilitates cleaning, and the high kernel yield—about 46%—ensures economical cultivation.
The plant has medium to high growth vigor, allowing for the formation of bushes with good foliage and fruiting. The variety is partially self-pollinating, which enhances yield stability. Due to its qualities and adaptation to regional climatic conditions, Istarski Duguljasti is a popular choice for gardeners and farmers aiming to produce large and flavorful nuts.
