Payame Noor University , e_gholinejad@pnu.ac.ir
Abstract: (145 Views)
Objective: This research was conducted to investigate the effects of sowing date and different seed priming treatments on morpho-physiological traits and grain yield of Simin wheat cultivar under late spring cold stress conditions in West Azerbaijan province.
Methods: The experiment was carried out as a factorial arrangement in a randomized complete block design with three replications during the 2024-2025 growing season. The first factor included two sowing dates (November 21 and December 22) and the second factor consisted of seed priming treatments.
Results: The results indicated that the first sowing date showed significant superiority in all traits and led to a 38% increase in grain yield compared to the second sowing date. Among priming treatments, melatonin was identified as the most effective treatment with 37% and 42% increase in grain yield in the first and second sowing dates, respectively. In contrast, salicylic acid treatment in the second sowing date caused 92% reduction in grain yield ratio and 75% reduction in biomass production efficiency.
Conclusion: Optimal sowing date along with the application of priming treatments such as melatonin and gibberellic acid can be recommended as an effective strategy for improving grain yield and late spring cold stress tolerance in wheat.
Methods: The experiment was carried out as a factorial arrangement in a randomized complete block design with three replications during the 2024-2025 growing season. The first factor included two sowing dates (November 21 and December 22) and the second factor consisted of seed priming treatments.
Results: The results indicated that the first sowing date showed significant superiority in all traits and led to a 38% increase in grain yield compared to the second sowing date. Among priming treatments, melatonin was identified as the most effective treatment with 37% and 42% increase in grain yield in the first and second sowing dates, respectively. In contrast, salicylic acid treatment in the second sowing date caused 92% reduction in grain yield ratio and 75% reduction in biomass production efficiency.
Conclusion: Optimal sowing date along with the application of priming treatments such as melatonin and gibberellic acid can be recommended as an effective strategy for improving grain yield and late spring cold stress tolerance in wheat.
Keywords: Biomass, Flag leaf, Melatonin, Salicylic acid, Seedling establishment, Sustainable Production
Type of Study: Original Article |
Subject:
Plant Biology
Received: 2025/12/12 | Revised: 2026/05/13 | Accepted: 2026/02/22
Received: 2025/12/12 | Revised: 2026/05/13 | Accepted: 2026/02/22
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