Akademik Veri Yönetim Sistemi
South African Journal of Botany, cilt.151, ss.208-213, 2022 (SCI-Expanded)
© 2022 SAABThe aging process induces the deterioration of seed vigor and viability. Priming methods have been shown to regenerate and rejuvenate aged crop seeds. Several studies have established that plant-derived smoke from burning plant material enhances germination and post-germination. Karrikinolide (KAR1), which has been identified as a molecule derived from smoke, can improve the germination of seeds of a range of plant species. However, the effect of KAR1 on aged seeds is not well known. Therefore, this study was carried out to determine the impact of KAR1 and hydropriming on germination and repair mechanism in unaged and artificially aged pepper, marrow, and cabbage seeds. Aged seeds were artificially produced at 40 ± 1 °C and 100% relative humidity for 48 h in cabbage and 72 h in marrow and pepper. KAR1 (10−7 M) was applied by dipping seeds in solution at a weight ratio of 1:5 seed: solution for 16 h at 20 °C. Hydropriming was applied under the same conditions using distilled water. Following the treatments, germination, seedling emergence, electrical conductivity, potassium leaching, and enzyme analysis were determined. Results showed that KAR1-treated seeds had the lowest electrical conductivity and potassium leakage in unaged and artificially aged seeds in all three species. The influence of KAR1 was more prominent on catalase activity in both artificially aged and unaged seeds. Additionally, KAR1 treatment improved germination and fresh and dry weights of seedlings in all three species. The results of the present study show that the application of KAR1 can help improve the performance of marrow, cabbage and pepper seeds in artificially aged (low-quality) seed germination.