Effect of Pre-sowing Seed Treatments on Germination and Vigor of the Samdeun Upland Rice Seed
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Abstract
Direct seeding with high-quality seeds leads to an increase in germination, seedling establishment, and yield productivity. Pre-sowing treatments had increased seed germination of various crop species. This experiment was conducted to study an effect of pre-sowing seed treatments on germination and vigor of the Samdeun upland rice seeds. Completely randomized design with 4 replications was used. Ten seed treatments were as follows: soaking in water with oxygen pumping (hydropriming) at 18˚C for 24, 48, 72 and 96-h, soaking in 1.0% KNO3 with oxygen pumping (osmopriming) at 18˚C for 24, 48, 72 and 96-h, soaking in water for 24-h at room temperature (traditional soaking), and a non-presowing treatment as a control treatment. Pre-sowing treatments showed a significant effect on germination percentage and all the tests for vigor. Hydropriming for 24, 48, 72-h and osmopriming for 24-h were better pre-sowing treatments for the Samdeun upland rice seeds with germination of 83.50, 81.50, 81.00, and 83.00%, respectively. These were highly significant (p≤0.05) compared to non-treated seeds (71.00%), while the traditional soaking had germination of 76.50%.
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King Mongkut's Agricultural Journal
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