Some Seed Pre-Treatments on Germination Performance and Seed Quality Improvement in Black Cumin (Nigella sativa L.) Seeds
DOI:
https://doi.org/10.5281/zenodo.17941407Keywords:
Black Cumin (Nigella sativa L.), priming, germination, emergenceAbstract
This study was conducted to determine the effects of different pre-sowing treatments on the germination percentage and mean germination time of black cumin (Nigella sativa L.) seeds. The experiment was established in 2025 under laboratory conditions at the Ege University Seed Technology Research and Application Center (TOTEM), using a Completely Randomized Blok Design with three replications. The treatments included GA₃ (500 mg L⁻¹), KH₂PO₄ (2 g L⁻¹), PEG 6000 (300 g L⁻¹), and their combinations (PEG 6000 + GA₃ and PEG 6000 + KH₂PO₄), which were applied as seed priming treatments. Following the treatments, germination tests were carried out in accordance with ISTA rules in terms of the germination percentage and mean germination time. The results showed that there were statistically significant differences among treatments in terms of both germination percentage and mean germination time. The highest germination percentage (88.67%) and the shortest mean germination time (3.99 days) were obtained from the PEG 6000 + KH₂PO₄ treatment. Other effective treatments included PEG 6000 + GA₃ (80.00% – 4.48 days) and KH₂PO₄ alone (80.67% – 7.03 days). In conclusion, KH₂PO₄ and GA₃, particularly when combined with PEG 6000, were found to be effective pre-sowing treatments for promoting faster and more uniform germination in black cumin seeds.
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