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بررسی اثر جیبرلین، اسید اسکوربیک و اسید سالیسیلیک بر کیفیت بذر، رنگیزه های فتوستزی و مالوندیآلدهید گیاهچه حاصل از بذر پیر شده آفتابگردان | ||
| علوم و فناوری بذر ایران | ||
| مقاله 12، دوره 8، شماره 1 - شماره پیاپی 15، تیر 1398، صفحه 161-174 اصل مقاله (727.31 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22034/ijsst.2018.115205.1124 | ||
| نویسندگان | ||
| آمنه اکبرزاده شرفی1؛ حمیدرضا عیسوند* 1؛ ناصر اکبری2؛ داریوش گودرزی3 | ||
| 1گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه لرستان | ||
| 2استادیار/گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه لرستان، ایران. | ||
| 3مربی/گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه لرستان، ایران. | ||
| چکیده | ||
| به منظور بررسی نقش پرایمینگ بذر با جیبرلین، اسید آسکوربیک و اسید سالیسیلیک در کاهش خسارت ناشی از زوال بذر و بهبود کیفیت بذر و گیاهچه سه رقم آفتابگردان (فرخ، برزگر و رقم شمشیری)، آزمایشی در سال 1395 به صورت گلدانی انجام شد. این پژوهش به صورت آزمایش فاکتوریل بر پایه طرح بلوکهای کامل تصادفی با سه تکرار انجام شد. بذرها در معرض تیمار پیری زودرس قرار گرفتند و سپس پرایم شدند. تیمارهای پرایمینگ شامل: بدون پرایم، غلظت صفر (هیدروپرایمینگ)، جیبرلین (ppm 50 و ppm 75 )، آسکوربیک اسید (ppm 100 و ppm150)، اسید سالیسیلیک (ppm 138 و ppm 207)، جیبرلین ppm50 + اسیدآسکوربیک ppm 100 ppm ، جیبرلین ppm50 + اسید سالیسیلیک ppm138، اسید آسکوربیک ppm100 + اسید سالیسیلیک ppm138 و جیبرلین ppm50 + اسید آسکوربیک ppm 100 + اسید سالیسیلیک ppm 138 بود. رقم برزگر در مقایسه با دو رقم دیگر از نظر درصد و سرعت ظهور گیاهچه برتری داشت. بیشترین درصد ظهور گیاهچه در رقم برزگر با تیمار جیبرلین ppm50 + اسید سالیسیلیک ppm138 و در ارقام شمشیری و فرخ توسط هیدروپرایمینگ بدست آمد. پرایمینگ سرعت ظهور گیاهچه را در هر سه رقم بهبود بخشید اما پاسخ به پرایمینگ در هر رقم اختصاصی بود. بیشترین سرعت ظهور گیاهچه از رقم برزگر و در تیمار جیبرلینppm 75 مشاهده شد. پرایمینگ بطور چشمگیری میزان مالوندی آلدهید گیاهچه را در هر سه رقم کاهش داد. کمترین میزان مالوندیآلدهید از رقم برزگر و در تیمار ترکیبی آسکوربیک اسید + سالیسیلیک اسید بدست آمد. | ||
| کلیدواژهها | ||
| پرایمینگ؛ زوال بذر؛ کارتنویئد؛ کلروفیل؛ گیاه روغنی | ||
| عنوان مقاله [English] | ||
| Effect of Gibberellin, Ascorbic acid and Salicylic acid on Seed Quality, Photosynthesis Pigments and Malondialdehyde Content of Seedling From Sunflower Deteriorated Seeds | ||
| نویسندگان [English] | ||
| Ameneh Akbarzadeh Sharafi1؛ Hamid Reza Eisvand1؛ N. Akbari2؛ D. Goodarzi3 | ||
| 1Dept. of Agronomy and Plant Breeding, Faculty of Agriculture, Lorestan University | ||
| 2Assistant Prof./Dept. of Agronomy and Breeding, Faculty of Agriculture, Lorestan University, Iran. | ||
| 3Member of Scientific board/ Dept. of Agronomy and Plant Breeding, Faculty of Agriculture, Lorestn University, Iran. | ||
| چکیده [English] | ||
| In order to study effects of seed priming with Gibberellin (GA), Ascorbic acid (AsA) and Salicylic acid (SA) on mitigation of seed deterioration damage and improvement of seed and seedling qualities of three sunflower cultivars (Farrokh, Barzegar and Shamshiri), a pot experiment was done in 2016. This research was carried out as a factorial experiment based on RCBD with three replications. Seeds were exposed to accelerated aging then primed. Priming treatments were included: control, hydropriming, GA (50 and 75 ppm), AsA (100 and 150 ppm), SA (138 and 207 ppm), GA 50 ppm + AsA 100ppm, GA50 ppm + SA 138 ppm, AsA 100ppm + SA 138ppm, and GA 50ppm + AsA 100ppm + SA 138 ppm. Barzegar cultivar had better seedling emergence percentage and rate than the Shamshiri and Farrokh. Seedling emergence was improved by priming treatments; however, suitable treatments were different for the cultivars. Maximum seedling emergence percentage was obtained in Barzegar by GA 50ppm + SA 138ppm; however in Shamshiri and Farrokh by hydropriming. Priming improved seedling emergence rate of the three cultivars, but the response to priming was cultivar specific. Priming decreased seedling malondialdehyde (MDA) significantly in three cultivars. The lowest MDA content was obtained in Barzegar cultivar primed by AsA + SA. | ||
| کلیدواژهها [English] | ||
| Carotenoid, Chlorophyll, Oil crop, Priming, Seed deterioration | ||
| مراجع | ||
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