بررسی برخی از شاخصهای رشد و ترکیبات آنتیاکسیدانی گیلاس وحشی (Cerasus arium L.) با توجه به نقش اکولوژیک ارتفاع از سطح دریا در جنگلهای مدیریت شده رامسر
الموضوعات :میر مظفر فلاح چای 1 , رزا خلعتبری 2 , علیرضا اسلامی 3
1 - گروه جنگلداری، واحد لاهیجان، دانشگاه آزاد اسلامی، لاهیجان، ایران
2 - گروه جنگلداری، واحد رشت، دانشگاه آزاد اسلامی، رشت، ایران
3 - گروه کشاورزی، واحد رشت، دانشگاه آزاد اسلامی، رشت، ایران
الکلمات المفتاحية: رشد, ارتفاع, گیلاس وحشی, فلاونوئید, آنتوسیانین, جنگلهای رامسر,
ملخص المقالة :
گیلاس وحشیL. Cerasus avium از گونههای پهن برگ و بومی بسیار با ارزشی است که به صورت پراکنده یا به صورت گروههای کوچک در جنگلهای شمال ایران حضور دارد. این تحقیق به منظور مطالعه اثر ارتفاع از سطح دریا بر روی برخی از ویژگیهای رشد گونه گیلاس وحشی در طبقات ارتفاعی مختلف صورت گرفت. بدینمنظور بعد از جنگل گردشیهای متعدد در سریهای 1 و 3 جنگلهای نسارود رامسر تعداد 60 پایه گیلاس قطورتر از 20 سانتیمتر بعلّت عدم فراوانی مناسب در سایر ارتفاعات در سه طبقه ارتفاعی 400-200، 800-600 و 1400-1200 متر از سطح دریا بهصورت انتخابی مشخص شدند. در این مطالعه برخی ویژگیهای کمی و کیفی پایههای مورد نظر اندازهگیری و مورد تجزیه و تحلیل قرار گرفتند. نتایج حاصل نشان داد که مشخصههای کمی رشد قطر برابر سنیه در طبقات ارتفاعی مختلف دارای اختلاف معنی داری در سطح 5 درصد بود. همچنین مشخص شد که با افزایش ارتفاع از سطح دریا و افزایش شدت نور به ویژه تابش مستقیم اشعه ماوراء بنفش میزان فلاونوئیدهای برگ و غلظت آنتوسیانینهای موجود در میوه گیلاس وحشی که باعث پیدایش رنگ قرمز میشود افزایش یافت.
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