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اثر تیمارهای مختلف پرایمینگ بر صفات جوانهزنی بذر عدس الملوک (Securigera securidaca) تحت تنش دمای پایین | ||
| علوم و فناوری بذر ایران | ||
| مقاله 8، دوره 10، شماره 3 - شماره پیاپی 23، آبان 1400، صفحه 101-119 اصل مقاله (892.44 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijsst.2021.353719.1386 | ||
| نویسندگان | ||
| فرزاد شریف زاده* 1؛ آرزو اسپنانی2؛ محمد رضا نقوی3 | ||
| 1پردیس کشاورزی و منابع طبیعی دانشگاه تهران | ||
| 2گروه زراعت و اصلاح نباتات پردیس کشاورزی و منابع طبیعی دانشگاه تهران | ||
| 3گروه زراعت و اصلاح نباتات، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران | ||
| چکیده | ||
| در این تحقیق، اثر تیمارهای پرایمینگ بذر بر پارامترهای جوانهزنی بذر گیاه دارویی عدس الملوک در شرایط تنش سرما مورد بررسی قرار گرفت. ابتدا بذرها در معرض هشت سطح دمائی (5، 10، 15، 20، 25، 30، 35 و 40 درجه سانتی گراد) قرار گرفتند. سپس تیمارهای آزمایشی شامل تیمارهای مختلف پرایمینگ (هیدروپرایم، اسموپرایم شامل نیترات پتاسیم و کلرید کلسیم و عدم پرایم) جهت بهبود خصوصیات جوانه زنی تحت تنش سرما مورد استفاده قرار گرفت. نتایج نشان داد که درجه حرارت به طور معنیدار سبب کاهش درصد و سرعت جوانهنی، طول و وزن خشک گیاهچه، درصد گیاهچه نرمال و بنیه بذر شد. تیمار 5 میلیمولار کلرید کلسیم در دمای 10 درجه سانتی گراد به مدت 20 ساعت بیشترین درصد جوانهزنی، تیمار 1 درصد نیترات پتاسیم در دمای 10 درجه سانتی گراد به مدت 20 ساعت بیشترین وزن خشک گیاهچه و تیمارهای 5/0 درصد نیترات پتاسیم در دمای 10 درجه سانتی گراد به مدت20 ساعت و10 میلی-مولار کلرید کلسیم در دمای 15 درجه سانتی گراد به مدت20 ساعت بالاترین درصد گیاهچه نرمال را به خود اختصاص دادند اما تیمار هیدروپرایم در دمای 15 درجه سانتی گراد به مدت 20 ساعت بالاترین سرعت جوانهزنی، طول گیاهچه و بنیه بذر را دارا بود و همچنین در صفت درصد گیاهچه نرمال نیز جز بهترین تیمارها محسوب شد. بنا براین این تیمار به لحاظ این که در اکثر صفات جوانه زنی بهتر بوده و انجام آن ساده تر و ارزان تر می باشد می توان آن را به عنوان تیمار مناسب برای این گیاه معرفی نمود. | ||
| کلیدواژهها | ||
| کلرید کلسیم؛ نیترات پتاسیم؛ هیدروپرایمینگ؛ دمای پائین | ||
| عنوان مقاله [English] | ||
| The effect of different priming treatments on germination traits of Securigera securidaca seeds under low temperature stress | ||
| نویسندگان [English] | ||
| F. Sharifzadeh1؛ Arezoo Espanany2؛ Mohammad Reza Naghavi3 | ||
| 1UTCAN | ||
| 2Department of Agronomy and Plant Breeding, Faculty of Agriculture and Natural Resources, University of Tehran | ||
| 3Department of Agronomy and Plant Breeding, Faculty of Agriculture and Natural Resources, University of Tehran | ||
| چکیده [English] | ||
| In this research, the effect of different seed priming treatments was investigated on seed germination parameters of Securigera securidaca seeds in the low temperature stress conditions. Seeds first were exposed to eight temperature levels (5, 10, 15, 20, 25, 30, 35 and 40 ° C). Experimental treatments included different priming treatments (hydropriming, osmopriming including potassium nitrate and calcium chloride and no priming). The results showed that temperature significantly reduced germination percentage and rate, seedling length and seedling dry weight, normal seedling percentage and seed vigor. 5 mM of calcium chloride treatment at 10 ° C for 20 hours had the highest germination percentage, and 1% of potassium nitrate treatment at 10 ° C for 20 hours had the maximum seedling dry weight and 0.5% of potassium nitrate at 10 ° C for 20 hours and 10 mM of calcium chloride treatments at 15 ° C for 20 hours had the highest percentage of normal seedlings. Hydropriming treatment at 15 ° C for 20 hours had the highest germination rate, seedling length and seed vigor and was also one of the best treatments in terms of normal seedling percentage. So this treatment can be introduced as a suitable treatment for this plant because it is better in most germination traits and it is easier and cheaper to do. | ||
| کلیدواژهها [English] | ||
| Calcium Chloride, Potassium Nitrate, Hydropriming, low temperature | ||
| مراجع | ||
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