ریزازدیادی سرخدار یک درخت دارویی زینتی
Subject Areas : Journal of Ornamental Plantsعلی سحری مقدم 1 , بهزاد کاویانی 2 , علی محمدی ترکاشوند 3 , وحید عبدوسی 4 , علیرضا اسلامی 5
1 - گروه خاکشناسی، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، ایران
2 - گروه باغبانی، دانشکده کشاورزی، دانشگاه آزاد اسلامی واحد رشت، رشت، ایران
3 - گروه خاکشناسی، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، ایران
4 - گروه خاکشناسی، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، ایران
5 - گروه باغبانی، دانشکده کشاورزی، دانشگاه آزاد اسلامی واحد رشت، رشت، ایران
Keywords: تنظیمکنندههای رشد گیاهی, درختان جنگلی, پرآوری درونشیشهای, گیاه زینتی تهدیدشده,
Abstract :
یک روش تکثیر درونشیشهای سرخدار انگلیسی (Taxus baccata L.) طی روش اندامزایی با استفاده از کینتین (Kin) و ایندول-3-بوتیریک اسید (IBA) به عنوان تنظیمکنندههای رشد گیاهی و جوانه رأسی به عنوان ریزنمونه ارائه میشود. جوانههای رأسی بریدهشده از گیاهان مادری روی محیط موراشیگ و اسکوگ (MS) مکملشده با غلظتها و ترکیبهای مختلف Kin (1، 0.5، 0 و 2 میلیگرم بر لیتر) به عنوان یک سیتوکینین و IBA (1، 0.5، 0 و 2 میلیگرم بر لیتر) به عنوان یک اکسین قرار گرفتند. نتایج نشان داد که بیشترین تعداد گره (6.75) روی محیط MS حاوی 2 میلیگرم بر لیتر Kin به دست آمد. بیشترین تعداد سرشاخه (5) روی محیط MS مکملشده با 1 میلیگرم بر لیتر Kin همراه با 1 میلیگرم بر لیتر IBA به دست آمد. بیشترین تعداد ریشه (6.50) روی ریزنمونههای رشدیافته روی محیط غنیشده با 2 میلیگرم بر لیتر Kin همراه با 1 میلیگرم بر لیتر IBA تولید شد. گیاهچهها به گلدانهای پرشده با پرلایت و پیت موس به نسبت مساوی برای سازگاری منتقل شدند. این گیاهچهها سازگار شدند و به طور موفقیتآمیزی در بسترهای کشت استقرار یافتند.
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