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تأثیر پیش‌تیمار بذر با عناصر کم مصرف آهن و بُر روی برخی شاخص‌های جوانه‌زنی و عملکرد گل همیشه‌بهار (Calendula officinalis L.) | ||
| تحقیقات گیاهان دارویی و معطر ایران | ||
| مقاله 5، دوره 30، شماره 6 - شماره پیاپی 68، بهمن 1393، صفحه 879-888 اصل مقاله (196.72 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijmapr.2015.11923 | ||
| نویسنده | ||
| بهرام میرشکاری* | ||
| دانشیار، گروه زراعت و اصلاح نباتات، دانشگاه آزاد اسلامی، واحد تبریز | ||
| چکیده | ||
| به‌منظور ارزیابی تأثیر پیش‌تیمار بذر گل همیشه‌بهار با آهن و بُر روی برخی شاخص‌های جوانه‌زنی و عملکرد آزمایشی در سال 1390 در دو مرحله آزمایشگاهی و مزرعه‌ای در سه تکرار در دانشگاه آزاد اسلامی واحد تبریز اجرا شد. تیمارهای مورد مطالعه شامل پیش‌تیمار بذر با آهن و بُر در غلظت‌های 5/0%، 1%، 5/1% و 2% همراه با شاهد آب مقطر و دو تیمار ترکیبی 5/1% آهن + 1% بُر و 2% آهن + 1% بُر بود. براساس نتایج پیش‌تیمار بـذر در غلظت‌های 1% و 5/1% آهن و بُر به تنهایی یا در تیمارهای ترکیبی درصد جوانه‌زنی بذر همیشه‌بهار را در مقایسه با شاهد بهبود بخشید. بذرهای پرایم شده در محلول 5/1% سولفات آهن از شاخص قدرت گیاهچه بالاتر (برابر 3/2) برخوردار بودند. در بذرهای تیمار شده با اسید بوریک شاخص قدرت گیاهچه در صورت افزایش غلظت بُر در محلول غذایی به بیش از 1% محدود شد. البته عملکرد گل در تیمارهای حاوی 5/1% سولفات آهن + 1% اسید بوریک، 5/1% و 2% سولفات آهن و 2% سولفات آهن + 1% اسید بوریک به‌ترتیب حدود 39%، 34%، 24% و 28% بیشتر از شاهد بود. اسانس روغنی در بین تیمارها از 1/0 میلی‌لیتر در مترمربع در دو تیمار 5/1% و 1% اسید بوریک تا 27/0 میلی‌لیتر در مترمربع در تیمار ترکیبی 5/1% سولفات آهن + 1% اسید بوریک از خود تغییر نشان داد. اما از نظر این صفت تیمار 2% سولفات آهن + 1% اسید بوریک با تولید 14/0 میلی‌لیتر اسانس در کلاس آماری پایین‌تری نسبت به دیگر تیمار ترکیبی قرار گرفت. بنابراین تیمار بذر با آهن و بُر می‌تواند به‌عنوان روشی برای بهبود عملکرد اسانس گل همیشه‌بهار توصیه شود. | ||
| کلیدواژه‌ها | ||
| اسید بوریک؛ بهبود عملکرد؛ شاخص قدرت گیاهچه؛ محلول غذایی | ||
| عنوان مقاله [English] | ||
| Effects of seed priming with microelements of Fe and B on some germination parameters and yield of marigold (Calendula officinalis L.) | ||
| نویسندگان [English] | ||
| B. Mirshekari | ||
| Department of Agronomy and Plant Breeding, Tabriz Branch, Islamic Azad University, Tabriz, Iran | ||
| چکیده [English] | ||
| In order to evaluate the effect of seed priming with iron and boron on germination parameters and yield of marigold (Calendula officinalis L.), laboratory and field experiments were conducted in Islamic Azad University, Tabriz Branch, with three replications in 2011. The studied treatments were the seed priming with iron and boron at concentrations of 0.5%, 1%, 1.5% and 2%, distilled water as control and two combined treatments of Fe1.5%+B1% and Fe2%+B1%. Results revealed that seed priming with Fe 1% and 1.5% and B, alone or in the combined treatments, improved the seed germination speed of marigold as comared to the control. The seedling vigor index of primed seeds in Fe 1.5% solution increased up to 2.3. In the seeds primed with boric acid, the seedling vigor index was limited when the concentration of B in solution increased more than 1%. Dry flower yield in treatments of Fe1.5%+B1%, Fe1.5%, Fe2% and Fe2%+B1% were 39%, 34%, 24% and 28% more than control, respectively. Essential oil values among treatments ranged from 0.1 mL m-2 in B1.5% and B1% to 0.27 mL m-2 in Fe1.5%+B1%. Lower essential oil yield was obtained for the treatment of Fe2%+B1% (0.14 mL m-2) compared to B1.5% and B1%. Our results clearly showed that seed priming with iron and boron could be recommended as a method for improvement of essential oil yield in marigold. | ||
| کلیدواژه‌ها [English] | ||
| Boric acid, yield improvement, Seedling vigor index, solution | ||
| مراجع | ||
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