نوع مقاله : کامل علمی - پژوهشی
نویسندگان
1 دانشگاه آزاد اسلامی واحد مهاباد، مهاباد
2 دانشگاه شاهد
3 دانشگاه آزاد اسلامی مهاباد
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
In order to investigate the effect of chemical priming with various materials on seedling emergence and growth under greenhouse conditions, experiments were conducted during the 2018-2019 cropping season at the greenhouse of the Islamic Azad University, Mahabad branch, under both normal and salt stress conditions. The experimental treatments included two varieties (Rizofort and Pars) and ten priming treatments (no priming (control), polyethylene glycol, potassium nitrate, calcium chloride, zinc sulfate, salicylic acid, hydrochloric acid, mannitol, potassium dihydrogen phosphate, and distilled water). The effect of salinity levels on all traits, except for the seedling emergence index, was significant at a 1% probability level. The seed priming factor was also significant for all the investigated traits at a 1% probability level. Additionally, the interaction effect of both factors was significant for the seedling emergence index and seedling length at a 1% probability level, and for hypocotyl length at a 5% probability level. The results showed that the highest seedling emergence percentage, dry weight of aerial parts and roots, root length, petiole length, hypocotyl diameter, and hypocotyl length were associated with the Rizofort variety and the zinc sulfate priming treatment at a concentration of 50 mM in both normal and stress conditions. Seed priming with calcium chloride at a concentration of 50 mM also improved and increased the studied traits in the Rizofort variety under normal conditions. Seed priming with zinc sulfate under both normal and salt stress conditions increased seedling emergence and growth traits in both sugar beet varieties by approximately 40% compared to non-primed seeds, and it was able to mitigate the negative effects of salt stress by around 30%.
کلیدواژهها [English]
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