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اثر پرایمینگ بذر با پراکسید هیدروژن بر مولفه های جوانه زنی و رشد گیاهچه گندم (Triticum aestivum L.) در شرایط تنش شوری | ||
| علوم و فناوری بذر ایران | ||
| مقاله 5، دوره 12، شماره 4 - شماره پیاپی 32، آذر 1402، صفحه 57-67 اصل مقاله (1.02 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijsst.2023.361399.1476 | ||
| نویسندگان | ||
| سید کیوان مرعشی* 1؛ زهرا الباجی2 | ||
| 1استادیار، گروه زراعت، واحد اهواز، دانشگاه آزاد اسلامی، اهواز، ایران. | ||
| 2دانش‌آموخته کارشناسی ارشد، گروه زراعت، واحد اهواز، دانشگاه آزاد اسلامی، اهواز، ایران | ||
| چکیده | ||
| این تحقیق، بصورت فاکتوریل در قالب طرح کاملاً تصادفی با چهار تکرار اجرا شد. تیمارهای مورد مطالعه، شامل تنش شوری بصورت آبیاری با آب معمولی (4/0) و با شوری 4 و 8 دسی‌زیمنس بر متر نمک NaCl و پرایمینگ بذر با پراکسید هیدروژن شامل عدم پیش تیمار و پرایمینگ بذر در محلول 25 و 50 میلی‌مولار بود. در این آزمایش، صفات درصد جوانه زنی، سرعت جوانه زنی، طول ریشه چه، طول ساقه چه، ماده خشک ریشه چه، ماده خشک ساقه چه و شاخص بنیه بذر مورد بررسی قرار گرفت. در این تحقیق اثر تنش شوری و پراکسید هیدروژن برکلیه صفات مورد بررسی معنی‌دار بود. اثر متقابل تنش شوری و پراکسید هیدروژن بر صفات مورد مطالعه بجز سرعت جوانه زنی معنی‌دار شد. بیشترین درصد جوانه زنی، طول و ماده خشک ریشه چه و ساقه چه و شاخص بنیه بذر در شرایط عدم وجود تنش (آب معمولی) و کاربرد 50 میلی‌مولار پراکسید هیدروژن و کمترین آنها در شرایط شوری 8 دسی‌زیمنس بر متر و عدم کاربرد پرکسید هیدروژن حاصل گردید. بیشترین سرعت جوانه زنی در شرایط کاربرد 50 میلی مولار پراکسید هیدروژن و عدم وجود شوری حاصل شد. بطورکلی نتایج نشان داد که کاربرد پراکسید هیدروژن در شرایط وجود تنش شوری از طریق بهبود مؤلفه‌های جوانه زنی مؤثر بود و این می‌تواند به عنوان یک راهکار در جهت استقرار بهتر و مناسب گیاهچه مد نظر قرار گیرد. | ||
| کلیدواژه‌ها | ||
| بنیه بذر؛ پرایمینگ؛ تنش غیر زیستی؛ درصد جوانه‌زنی | ||
| عنوان مقاله [English] | ||
| Effect of seed priming with hydrogen peroxide on germination indices and seedling growth of wheat (Triticum aestivum L.) under salt stress condition | ||
| نویسندگان [English] | ||
| Seyed Keyvan Marashi1؛ Zahra Albaji2 | ||
| 1Assistant Professor, Department of Agronomy, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran | ||
| 2M.S. of Agronomy, Department of Agronomy, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran | ||
| چکیده [English] | ||
| This research was conducted as a factorial in a completely randomized design with four replications. The studied treatments include salinity stress in the form of irrigation with normal water (0.4) and with salinity of 4 and 8 dS/m of NaCl salt and seed priming with hydrogen peroxide, including no priming and seed priming in 25 and 50 mM solutions. In this experiment, the traits of germination percentage, germination rate, root length, stem length, root dry matter, stem dry matter and seed vigor index were investigated. In this research, the effect of salinity stress and hydrogen peroxide was significant on all investigated traits. The interaction effect of salinity stress and hydrogen peroxide on the studied traits was significant except germination rate. The maximum percentage of germination, length and dry matter of root and stem and seed vigor index was obtained under absence of stress (normal water) and application of 50 mM hydrogen peroxide and the minimum was under salinity of 8 dS/m and no application hydrogen peroxide. The maximum germination rate was obtained in the 50 mM hydrogen peroxide and no salt stress. In general, the results showed that the use of hydrogen peroxide in the presence of salinity stress was effective through the improvement of indices, and this can be considered as a strategy for better and proper seedling establishment. | ||
| کلیدواژه‌ها [English] | ||
| Seed vigor, priming, abiotic stress, germination percentage | ||
| مراجع | ||
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