Journals / Erciyes Tarım ve Hayvan Bilimleri Dergisi / 2026 / Volume: 9

Germination Responses of Black Cumin (Nigella sativa L.) Seeds to NaCl Induced Osmotic Stress Expressed

NaCl’nin Neden Olduğu Ozmotik Strese Karşı Çörek Otu (Nigella sativa L.) Tohumlarının Çimlenme Tepkileri

Oğuz Erol(YOZGAT BOZOK ÜNİVERSİTESİ)0000-0001-8329-1488
Ömer Fatih Erbay(YOZGAT BOZOK ÜNİVERSİTESİ)0009-0005-5914-7087
Hülya Doğan(YOZGAT BOZOK ÜNİVERSİTESİ)0000-0003-1970-4123
Levent Yazici(YOZGAT BOZOK UNIVERSITY)0000-0002-6839-5366
Pages
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Publication Date
2026-10-28
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In conclusion, it was determined that the Çameli nigella variety can largely maintain its germination performance under low and moderate levels of NaCl stress; however, germination and, in particular, early seedling development are significantly adversely affected at high salinity levels.

📌 3 Key Takeaways

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Objective & Hypothesis:Salinity is one of the major environmental stress factors limiting agricultural production.
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Key Findings & Data:The experiment was conducted using NaCl concentrations of 0, 50, 100, 150, and 200 mM NaCl concentrations, which corresponded to osmotic potentials of 0, -0.244, -0.487, -0.731, and -0.974 MPa, respectively.
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Conclusion & Impact:In conclusion, it was determined that the Çameli nigella variety can largely maintain its germination performance under low and moderate levels of NaCl stress; however, germination and, in particular, early seedling development are significantly adversely affected at high salinity levels.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Germination · Black Cumin · Seedling Development

Abstract

Salinity is one of the major environmental stress factors limiting agricultural production. The objective of this study was to determine the effects of different NaCl concentrations on seed germination and early seedling development in the Çameli variety of black cumin (Nigella sativa L.). The experiment was conducted using NaCl concentrations of 0, 50, 100, 150, and 200 mM NaCl concentrations, which corresponded to osmotic potentials of 0, -0.244, -0.487, -0.731, and -0.974 MPa, respectively. Germination rate, seedling and root length, fresh and dry weights, and various germination and vitality indices were determined. The results of the study showed that the germination rate, which was 93% in the control treatment, decreased to as low as 14% with increasing salt-induced osmotic stress. While low and moderate levels of osmotic stress did not statistically significantly alter the germination rate, high levels of osmotic stress markedly inhibited germination and seedling development. Seedling and root fresh weights and dry weights decreased depending on the stress level. MGT values, which were 4.47 days in the control treatment, increased to 12.06 days under the -0.976 MPa treatment. T50 values increased from 3.83 days to 12.06 days. In particular, the fact that root and shoot development did not occur despite germination taking place under the -0.974 MPa condition demonstrated that early seedling development can be completely suppressed under high osmotic stress. In conclusion, it was determined that the Çameli nigella variety can largely maintain its germination performance under low and moderate levels of NaCl stress; however, germination and, in particular, early seedling development are significantly adversely affected at high salinity levels.

Özet

Tuzluluk, tarımsal üretimi sınırlayan başlıca çevresel stres faktörlerinden biridir. Bu çalışmanın amacı, Çameli çeşidi çörek otu (Nigella sativa L.) tohumlarının çimlenmesi ve erken fide gelişimi üzerinde farklı NaCl konsantrasyonlarının etkilerini belirlemekti. Deney, sırasıyla 0, -0,244, -0,487, -0,731 ve -0,974 MPa ozmotik potansiyellere karşılık gelen 0, 50, 100, 150 ve 200 mM NaCl konsantrasyonları kullanılarak gerçekleştirilmiştir. Çimlenme oranı, fide ve kök uzunluğu, taze ve kuru ağırlıklar ile çeşitli çimlenme ve canlılık indeksleri belirlenmiştir. Çalışma sonuçları, kontrol uygulamasında %93 olan çimlenme oranının, tuz kaynaklı ozmotik stresin artmasıyla %14’e kadar düştüğünü göstermiştir. Düşük ve orta düzeyde ozmotik stres, çimlenme oranını istatistiksel olarak anlamlı bir şekilde değiştirmezken, yüksek düzeyde ozmotik stres çimlenmeyi ve fide gelişimini belirgin şekilde engelledi. Fide ve kök taze ağırlıkları ile kuru ağırlıkları, stres düzeyine bağlı olarak azaldı. Kontrol uygulamasında 4,47 gün olan MGT değerleri, -0,976 MPa uygulamasında 12,06 güne yükseldi. T50 değerleri 3,83 günden 12,06 güne yükselmiştir. Özellikle, -0,974 MPa koşulunda çimlenme gerçekleşmesine rağmen kök ve sürgün gelişiminin görülmemesi, yüksek ozmotik stres altında erken fide gelişiminin tamamen engellenebileceğini göstermiştir. Sonuç olarak, Çameli nigella çeşidinin düşük ve orta düzeyde NaCl stresi altında çimlenme performansını büyük ölçüde koruyabildiği; ancak yüksek tuzluluk seviyelerinde çimlenme ve özellikle erken fide gelişiminin önemli ölçüde olumsuz etkilendiği belirlenmiştir.

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Cite This Article

Erol, O., Erbay, Ö. F., Doğan, H., Yazici, L. (2026). Germination Responses of Black Cumin (Nigella sativa L.) Seeds to NaCl Induced Osmotic Stress Expressed. Erciyes Tarım ve Hayvan Bilimleri Dergisi, Volume: 9. https://doi.org/10.55257/ethabd.2019256

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