Determination of the Effects of Different Planting Distances on Plant Development and Starting to Yield in \\\'Yomrali\\\' Hazelnut Cultıvar

Authors : Aslı Erdoğdu, Ümit Serdar, Neriman Beyhan

Pages : 0-0

Doi:10.7161/omuanajas.1793873

View : 43 | Download : 179

Publication Date : 2026-02-27

Article Type : Research Paper

Abstract :Sustainability in hazelnut cultivation largely depends on reducing production costs. Priority should be given to high-yield cultivars, along with appropriate training and planting systems. Single-stem cultivation and determining optimal planting distances are crucial for effectively utilizing mechanization to reduce production costs. The research was conducted between 2022 and 2024 (the 3rd–5th leaf) years in a grower’s orchard in the Çarşamba district of Samsun province. The effect of different planting distances between the plants (1.5, 3.0, and 4.5 m) on the vegetative and generative growth of the \\\'Yomrali\\\' cultivar was investigated. Plant height, plant diameter and crown volume values at the end of the 5th leaf year of ‘Yomrali’ cultivar at different planting distances between the plants were determined as 309 cm, 83.9 mm and 25.8 m3 at 1.5 m distance; 300 cm, 88.3 mm and 35.0 m3 at 3.0 m distance and 306 cm, 91.9 mm and 26.0 m3 at 4.5 m distance, respectively. No significant difference was found in terms of development among the plants at different planting distances. The cumulative number of nut clusters per decare was 54.353 at a distance of 1.5 m, 28.269 at a distance of 3.0 m, and 19.942 at a distance of 4.5 m in the 3rd to 5th leaf years of plants. The study concluded that, during the initial years of orchard establishment, dense planting (1.5 m) is more suitable for achieving high yields with the \\\'Yomrali\\\' cultivar. In subsequent years, it is recommended to maintain the physiological balance between plant growth and yield through pruning and, if necessary, thinning of plants.
Keywords : Budama ve terbiye, Dikim mesafesi, Fındık, Verim, ‘Yomrali’, Corylus avellana L.

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