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تأثیر هالوپرایمینگ بر خصوصیات جوانهزنی گیاه دارویی مریمگلی مصری (Salvia aegyptiaca) تحت تنش شوری | ||
| علوم و فناوری بذر ایران | ||
| مقاله 1، دوره 12، شماره 3 - شماره پیاپی 31، مهر 1402، صفحه 1-11 اصل مقاله (1.19 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijsst.2023.360046.1453 | ||
| نویسندگان | ||
| محمد پیچند1؛ قاسمعلی دیانتی تیلکی2؛ حسین مرادی3؛ محمدعلی علیزاده4 | ||
| 1دانش آموخته کارشناسی ارشد مرتع داری، دانشکده منابع طبیعی، دانشگاه تربیت مدرس، ایران. | ||
| 2دانشیار گروه مرتعداری، دانشکده منابع طبیعی، دانشگاه تربیت مدرس، ایران. | ||
| 3دانشجوی دکتری علوم و مهندسی مرتع، دانشکده منابع طبیعی، دانشگاه تهران، کرج، ایران. | ||
| 4عضو هیات علمی موسسه تحقیقات جنگلها و مراتع - بانک ژن | ||
| چکیده | ||
| تنش شوری یکی از مهمترین عوامل محدودکننده رشد گیاهان است که تقریباً بر تمام مراحل رشد و نمو اثر منفی داشته و با ایجاد مسمومیت یونی و اختلال در جذب آب باعث کاهش کیفیت و کمیت گیاهان میگردد. هالوپرایمینگ، خیساندن بذور در محلول نمک و یک تیمار قبل از کشت، باعث افزایش جوانهزنی و سبز شدن یکنواخت بذور تحت شرایط نامطلوب محیط زیستی میگردد. جهت مطالعه تأثیر هالوپرایمینگ بر خصوصیات جوانهزنی گیاه دارویی مریمگلی مصری تحت تنش شوری، آزمایشی بهصورت فاکتوریل در قالب طرح کاملاً تصادفی با سه تکرار در آزمایشگاه تکنولوژی بذر دانشکده منابع طبیعی دانشگاه تربیت مدرس در سال 1400 اجرا شد. در این آزمایش فاکتور اول هالوپرایمینگ با چهار سطح (0، 80، 150 و 250 میلیمولار) از محلول سدیمکلرید و فاکتور دوم شامل سطوح مختلف شوری (0، 50، 100، 200 و 300 میلیمولار سدیمکلرید) مورد بررسی قرار گرفت و صفات مرتبط با جوانهزنی شامل درصد و سرعت جوانهزنی، میانگین زمان جوانهزنی، طول ریشهچه و ساقهچه و شاخص بنیه ارزیابی شدند. نتایج نشان داد کاربرد پرایمینگ در همه خصوصیات جوانهزنی تأثیر مثبت داشت به گونهای که در تمام صفات رشدی اختلاف معنیداری ایجاد کرد. بالاترین درصد جوانهزنی بذرها (33/91) در تیمار پرایمینگ 80 میلیمولار و شرایط عدم تنش بهدست آمد. در این بررسی افزایش تنش شوری موجب کاهش قابل توجهی در درصد جوانهزنی بذور گردید و در شرایط تنش شوری، هالوپرایمینگ بذر اثرات تنش شوری را بهطور مؤثری کاهش داد و شرایط مطلوبتری برای بهبود جوانهزنی ایجاد نمود. | ||
| کلیدواژهها | ||
| پیش تیمار؛ تنش شوری؛ مؤلفههای جوانهزنی؛ شاخص بنیهبذر | ||
| عنوان مقاله [English] | ||
| The effect of halopriming on seed germination of (Salvia aegyptiaca) under condition of salinity stress | ||
| نویسندگان [English] | ||
| Mohammad Pichand1؛ Ghasem Ali Dianati Tilaki2؛ Hossein Moradi3؛ Mohammadali alizadeh4 | ||
| 1Former M.Sc. Student of range management, Faculty of Natural Resources, Univ. Tarbiat Modarres, Iran. | ||
| 2Department of Rangeland Management, Faculty of Natural Resources, Tarbiat Modares university, Iran | ||
| 3Ph.D. Student in Range Management, Faculty of Natural Resources, University of Tehran, Karaj, Iran | ||
| 4Scientific member of Research Institute of Forest band rangland | ||
| چکیده [English] | ||
| Salinity stress is one of the most important factors limiting plant growth, which has a negative effect on seed germination, poor product quality and plant yield. Halopriming, soaking seeds in salt solution and a treatment before cultivation and as one of the priming methods, increases the germination and uniform greening of seeds under adverse environmental conditions. To study the effect of different levels of halopriming on the germination characteristics of the medicinal plant salvia aegyptiaca under salt stress, a factorial experiment in a Completely Randomized Design with three replications was performed in the seed technology laboratory of the faculty of Natural Resources of Tarbiat Modares University in 2021. In this experiment, the first factor includes different levels of halopriming with four levels (0, 80, 150 and 250 mM) of NaCl solution and the second factor includes different levels of salinity (0, 50, 100, 200 and 300 mM NaCl) was investigated and different traits including germination percentage, germination rate, average time of germination, root length, shoot length and seed germination index were evaluated. Results showed that seed priming positively affected on all germination characteristics in such a way that it created a significant difference in all growth characteristics. The highest seed germination percentage (91.33) was obtained in 80 mM priming treatment and no stress conditions. In this study, the increase in salinity stress caused a significant decrease in the percentage of seed germination, and in the conditions of salinity stress, seed halopriming effectively reduced the effects of salinity stress | ||
| کلیدواژهها [English] | ||
| seed treatment, salinity stress, germination traits, vigor index | ||
| مراجع | ||
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