Document Type : Original Article
Authors
Department of Production and Plant Genetics, Faculty of Agriculture, University of Kurdistan, Sanandaj, Iran
10.22092/ijsst.2025.368928.1554
Abstract
Seed priming is a technique employed to enhance the speed and uniformity of seed germination. To investigate the effect of seed priming on the germination characteristics of Lallemantia iberica seeds, two factorial experiments based on a completely randomized design were conducted in the greenhouse of the Faculty of Agriculture, Kurdistan University, during 2021. The experimental factors included seed priming (priming with auxin, gibberellic acid, salicylic acid, ascorbic acid, hydrated zinc sulfate, and a control) and irrigation levels (100%, 70%, and 40% of soil field capacity). In these experiments, plants derived from primed seeds were cultivated under different irrigation regimes, and their resulting seeds were evaluated for germination-related traits. In the seeds obtained from both experimental trials, the highest germination percentage (96.67%), germination rate (14.22), and seedling dry weight (0.117 g) were observed in seeds primed with gibberellic acid under full irrigation conditions. Under water stress conditions, the germination percentage of seeds resulting from auxin and zinc sulfate priming treatments was 88.89% and 88.6% in the first experiment, respectively, and 85.4% and 85.8% in the second experiment. These treatments increased seed germination by 5.83% and 5.5% in the first experiment, and 1.3% and 1.8% in the second experiment, respectively, compared to the control. It is inferred that certain priming methods, including priming with gibberellic acid, auxin, and zinc sulfate, had a more significant impact on traits such germination percentage and speed, and seedling dry weight compared to other treatments, though environmental factors during maternal plant growth may limit seed priming effectiveness.
Keywords
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