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اثر پرایمینگ در پاسخ جوانه‌زنی بذر سیاهدانه (Nigella Sativa L.) به دما در شرایط تنش شوری | ||
| علوم و فناوری بذر ایران | ||
| دوره 14، شماره 4 - شماره پیاپی 40، دی 1404، صفحه 43-58 اصل مقاله (684.61 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijsst.2024.363280.1498 | ||
| نویسندگان | ||
| پریسا احمدی1؛ محمد حسین قرینه* 2 | ||
| 1دانشجوی دکتری علوم و تکنولوژی بذر، گروه تولید و ژنتیک گیاهی، دانشکده کشاورزی، دانشگاه علوم کشاورزی و منابع طبیعی خوزستان، ملاثانی، ایران. | ||
| 2استاد، گروه تولید و ژنتیک گیاهی، دانشکده کشاورزی، دانشگاه علوم کشاورزی و منابع طبیعی خوزستان، ملاثانی، ایران. | ||
| چکیده | ||
| به منظور ارزیابی تیمارهای مختلف پرایمینگ در شرایط تنش شوری، آزمایشی به صورت فاکتوریل در قالب طرح کاملاً تصادفی در چهار تکرار در آزمایشگاه تکنولوژی بذر گروه مهندسی تولید و ژنتیک گیاهی دانشگاه علوم کشاورزی و منابع طبیعی خوزستان در سال 1401 انجام شد. عامل اول شامل سطوح مختلف شوری (صفر، 50، 100، 150 و 200 میلی‌مولار)، فاکتور دوم شامل پرایمینگ (شاهد( بدون پرایمینگ)، جیبرلیک اسید و نیترات پتاسیم) و عامل سوم شامل دما (10 و 25 درجه سانتی‌گراد) بود. نتایج نشان داد که در دمای 25 درجه سانتی‌گراد در شوری‌های بالاتر از 100 میلی‌مولار در تمامی تیمارهای پرایمینگ جیبرلیک اسید و نیترات پتاسیم و تیمار عدم کاربرد، جوانه‌زنی کاملا متوقف گردید، در حالی که در دمای 10 درجه سانتی‌گراد در سطح شوری 200 میلی-مولار، در شرایط کاربرد پرایمینگ جیبرلیک اسید و نیترات پتاسیم 93 درصد از بذرها قادر به جوانه‌زنی بودند. درصد جوانه‌زنی بذر سیاهدانه در دمای 25 درجه سانتی‌گراد در سطح شوری 50 میلی‌مولار در شرایط کاربرد پرایمینگ بذر با نیترات پتاسیم و جیبرلیک اسید به ترتیب 54 و 48 درصد بود و نسبت به تیمار عدم پرایمینگ که 32 درصد بود اختلاف چشمگیری را نشان داد. در شرایط کاربرد جیبرلیک اسید در دمای 25 درجه سانتی‌گراد، بیشترین متوسط زمان جوانه-زنی(11 روز) مشاهده گردید. به طور کلی با توجه به تنش شوری و کشت و کار گیاهان دارویی، استفاده از جیبرلیک اسید و نیترات پتاسیم برای رسیدن به جوانه زنی مطلوب و به دنبال آن استقرار مطلوب گیاهچه سیاهدانه پیشنهاد می‌گردد. | ||
| کلیدواژه‌ها | ||
| : ضریب سرعت جوانه‌زنی؛ نیترات پتاسیم؛ جیبرلیک اسید؛ تنش؛ شاخص جوانه‌زنی | ||
| عنوان مقاله [English] | ||
| The effect of priming on the response of nigella sativa L. seed germination to temperature under salinity stress conditions | ||
| نویسندگان [English] | ||
| Parisa Ahmadi1؛ Mohammed Hossein Gharineh2 | ||
| 1PhD Student, Department of Plant Production and Genetics, Faculty of Agriculture, Khuzestan University of Agricultural Sciences and Natural Resources, Mullasani, Iran. | ||
| 2Professor, Department of Plant Production and Genetics Engineering, Faculty of Agriculture, Khuzestan University of Agricultural Sciences and Natural Resources, Mullasani, Iran. | ||
| چکیده [English] | ||
| To evaluate different priming treatments under salinity stress conditions, an experiment was conducted in a factorial design based on completely randomized design with four replications in the Seed Technology Laboratory of the Department of Plant Production and Genetics Engineering at Agricultural Sciences and Natural Resources University of Khuzestan in 2022. The first factor included different salinity levels (0, 50, 100, 150, and 200 mM), the second factor included priming treatments (control (no priming), gibberellic acid, and potassium nitrate), and the third factor included temperature (10 and 25 C). The results showed that at 25 C, germination completely stopped at salinity levels above 100 mM in all priming treatments (gibberellic acid, potassium nitrate, and no priming). However, at 10 C and a salinity level of 200 mM, 93% of the seeds were able to germinate under gibberellic acid and potassium nitrate priming conditions. The germination percentage of black cumin seeds at 25 C and a salinity level of 50 mM was 54% and 48% under gibberellic acid and potassium nitrate priming conditions, respectively, showing a significant difference compared to the control treatment (32%). Under gibberellic acid application at 25 C, the highest mean germination time (11 days) was observed. Overall, considering salinity stress and the cultivation of medicinal plants, the application of gibberellic acid and potassium nitrate is recommended to achieve optimal germination and subsequent establishment of black cumin seedlings. | ||
| کلیدواژه‌ها [English] | ||
| Coefficent of velocity of germination, potassium nitrate, gibberellic acid, stress, germination index | ||
| مراجع | ||
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