Vegetos
(An International Journal of Plant Research & Biotechnology)
(eISSN: 2229-4473)
Agronomic analysis of hazelnut cultivars in Georgia: morphological and technical characteristics
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Research Articles | Published: 23 June, 2026
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Keywords: Hazelnuts, Varieties, Morphometric analysis, Kernel, Length
Abstract
Hazelnuts (Corylus avellana) are considered the most important nut crop due to their high nutritional and economic value. This research examines the morphological and technical characteristics of the seven hazelnut varieties in Georgia, including Anakliuri, Gulshishvela, Dedophlis Thithi, Shveliskura, Chkhikvistava, Khachapura, and Kharistvala. The harvested 2–3 kg of mature fruits underwent a standardized drying process and were collected in September 2022. The assessment focused on morphological characteristics, such as color, shape, apex, basal shapes, and indumentum of fruits, and biometric determination of kernels, including shape, length, width, and thickness. The technical characteristics covered fruit weight, kernel-to-shell ratio, and total yield. The findings revealed a range of fruit shapes, including oblong-cylindrical, round, round-oval, and round-flat, with variation in the fruit dimensions. The kernel-to-shell ratio was between 0.9 and 2.27 g. Gulshishvela cultivar exhibits the highest proportion of kernel-to-shell ratio of 52.8% compared to other varieties. Consequently, this makes Gulshishvela suitable for processing and commercial use, where kernel yield is an important consideration. This study leverages important perceptions as morphological features of various Georgian hazelnuts, which can inform cultivation practices and increase the economic feasibility of the different varieties in both local and international markets.
References
Ahmadov A (2024) The impact of climate change on hazelnut cultivation. Turkish J Food Agric Sci 6(2):106–115. https://doi.org/10.53663/turjfas.1497178
Akram MZ, Libutti A, Rivelli AR (2024) Drought stress in quinoa: effects, responsive mechanisms, and management through biochar amended soil: a review. Agriculture 14(8):1418. https://doi.org/10.3390/agriculture14081418
Bell PC (2024) Bloom and Budbreak Phenologies of Unique Hazelnut Germplasms Grown in New Jersey (Master’s thesis, Rutgers The State University of New Jersey, School of Graduate Studies). https://doi.org/10.7282/t3-8fqg-w688
Ceylan FD, Adrar N, Bolling BW, Capanoglu E (2023) Valorisation of hazelnut by-products: current applications and future potential. Biotechnol Genet Eng Rev 39(2):586–621. https://doi.org/10.1080/02648725.2022.2160920
Harzli I, Mostafa K, Abdulla MF, Mehmood M (2025) Sustaining Turkish genetic resources. Plant Gene Banks: Genetic Resources Collections. Conservation and Sustainable Utilization. Springer, Singapore, pp 1–24. https://doi.org/10.1007/978-981-99-4236-7_88-1Nature Singapore
Helmstetter AJ, Oztolan-Erol N, Lucas SJ, Buggs RJ, (2020) Genetic diversity and domestication of hazelnut (Corylus avellana L.) in Turkey. People Planet 2(4):326–339. https://doi.org/10.1002/ppp3.10078
İslam A, Ayan S, Turan A, Yılmaz M, Karagol S, Çolak S (2023) Morphometric diversity for rootstock characteristics of Turkish Hazel (Corylus colurna L.) populations in the western black sea region of Türkiye. Karadeniz Fen Bilimleri Dergisi 13(4):1416–1426. https://doi.org/10.31466/kfbd.1285059
Jaćimović V, Adakalić M, Ercisli S, Božović D, Bujdoso G (2020) Fruit quality properties of walnut (Juglans regia L.) genetic resources in Montenegro. Sustainability 12(23):9963. https://doi.org/10.3390/su12239963
Król K, Gantner M, Piotrowska A (2021) The quality characteristic and fatty acid profile of cold-pressed hazelnut oils during nine months of storage. Agronomy 11(10):2045. https://doi.org/10.3390/agronomy11102045
Mehlenbacher SA, Molnar TJ (2021) Hazelnut breeding. Plant Breed reviews 45:9–141. https://doi.org/10.1002/9781119828235.ch2
Nazarenko M, Simchenko O (2023) Diversity of hazelnut varieties and changes in plant development during introduction in the semi-arid zone. Biosystems Divers 31(3):313–318. https://doi.org/10.15421/012336
Pergola M, Maffia A, Picone A, Palese AM, Altieri G, Celano G (2024) Hazelnut cultivation in the campania region: environmental sustainability of the recovery of pruning residues and shells through the life cycle assessment methodology. Sustainability 16(17):7533. https://doi.org/10.3390/su16177533
Şahin S, Tonkaz T, Yarılgaç T (2022) Chemical composition, antioxidant capacity and total phenolic content of hazelnuts grown in different countries. Tekirdağ Ziraat Fakültesi Dergisi 19(2):262–270. https://doi.org/10.33462/jotaf.893244
Salardi-Jost M, Mager S, Dini G, Macharia MW, Rovira M, Cristofori V, Dell’Acqua M (2025) Genomic characterization of a global Corylus avellana L. collection: insights into hazelnut ancestry and genetic determinants of production traits. BMC Plant Biol 25(1):1738. https://doi.org/10.1186/s12870-025-07596-2
Sartania D, Nikolaishvili D (2021) Agrodiversity and sustainable development. biodiversity, conservation and sustainability in Asia: volume 1: prospects and challenges in West Asia and Caucasus. Springer International Publishing, Cham, pp 371–392. https://doi.org/10.1007/978-3-030-59928-7_14
Silvestri C, Bacchetta L, Bellincontro A, Cristofori V (2021) Advances in cultivar choice, hazelnut orchard management, and nut storage to enhance product quality and safety: an overview. J Sci Food Agric 101(1):27–43. https://doi.org/10.1002/jsfa.10557
Uzundumlu AS, Kurtoğlu S, Şerefoğlu C, Algur Z (2022) The role of Turkey in the world hazelnut production and exporting. Emirates J Food Agric (EJFA). https://doi.org/10.9755/ejfa.2022.v34.i2.2810
Author Information
Department of Biodiversity Monitoring and Conservation, Institute of Phytopathology and Biodiversity, Batumi Shota Rustaveli State University, Batumi, Georgia