Akademik Veri Yönetim Sistemi
Russian Journal of Plant Physiology, cilt.72, sa.4, 2025 (SCI-Expanded, Scopus)
Abstract: Seed priming is an effective method to alleviate yield losses caused by abiotic stress. Gamma radiation is a physical agent with a proven dose-dependent hormesis effect that could be applied for seed priming treatment. The effects of gamma seed priming on growth parameters and biochemical markers were tested to alleviate the negative effects of water stress in wheat (Triticum aestivum L.). Seed priming was performed with gamma irradiation doses of 0 (control), 100, 200 and 300 Gy. Germination rate, coleoptile length, shoot and root lengths, fresh and dry weight were measured under –1 MPa osmotic stress in laboratory experiments. The germination rate of 89.41% in the control treatment decreased to 69.12% due to water stress. Gamma seed priming with 100 and 200 Gy increased the germination rate to 79.63 and 81.76%, respectively. Water stress-induced decreases were also determined in other physiological parameters examined. Low-dose gamma priming was effective in alleviating the effect of water stress. Conversely, the 300 Gy dose showed a suppressive effect on the examined parameters. Besides, stress-related biochemical markers such as proline, MDA, CAT and SOD were regulated with gamma seed priming. Significant interactions were identified between biochemical markers and improved growth parameters. The effects of gamma doses on growth parameters under water stress were discussed in light of these results. The findings highlight the importance of using gamma irradiation in seed priming methods to increase tolerance to abiotic stress.