مقایسه ویژگی های ریز ریخت شناسی اپیدرم سطح زیرین برگ و سطح دانه در دو سری از جنس .Crataegus L از تیره گلسرخیان (Rosaceae) و نقش تاگزونومیکی آن ها

نوع مقاله: مقاله پژوهشی

نویسندگان

1 موسسه تحقیقات جنگلها و مراتع کشور

2 دانشگاه تهران

3 دانشگاه تربیت مدرس

چکیده

ویژگی­های ریز ریخت­ شناسی اپیدرم سطح زیرین برگ و سطح دانه در هشت تاگزون از جنس .Crataegus L مربوط به سری series Pentagynae  وسری series Crataegus زیر سری subseries erianthae با استفاده از تصاویر الکترونی (SEM) مورد مطالعه قرار گرفت. تجزیه و تحلیل داده ­ها با استفاده از روش­های آماری تحلیل واریانس یکطرفه (ANOVA) و تحلیل مولفه ­های اصلی (PCA) انجام شد. صفات کیفی اپیدرم سطح زیرین برگ شامل تزیینات غشای کوتیکولی، نواره بندی و انواع واکس­های کریستالوئیدی در سطح زیر جنس، بین گونه ­ها و زیر گونه ­ها جدا کننده بودند در حالی­که صفات کیفی اهمیت کمتری داشتند. صفات مربوط به سطح دانه نیز اهمیت کمتری نسبت به صفات اپیدرم سطح زیرین برگ در تاگزونومی جنس دارند.

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