Phyto-Chemical and Morphological Characters of Calendula officinalis as Affected by Micronutrients
محورهای موضوعی : مجله گیاهان زینتی
1 - Department of Agronomy and Medicinal Plants, Faculty of Agriculture, Shahrekord Branch, Islamic Azad University
کلید واژه: Nutrition, GC/MS, Extraction, pot marigold, Phytochemical,
چکیده مقاله :
In order to study the effect of foliar applications of micronutrients on yield, extraction oil production and chemical composition of pot marigold (Calendula officinalis), two experiments were conducted in the randomized complete block design with three replications in Shahrekord, Iran during two growing seasons 2014 and 2015. The objectives of this study were to determine the effects of foliar Fe2+, Cu2+, Zn2+, and Mn2+ applications (0, 200 and 400 ppm) on flavonoid, phenols, carotenoids, extraction percentage, dry weight of the flower and the number of flowers of pot marigold. Results showed that foliar applications of Fe2+, Cu2+, Zn2+, and Mn2+ had significant effects on fresh and dry flower yield, number of flowers, extraction oil percentage and flavonoids, phenols, carotenoids of pot marigold plants, so that the highest dry weight of flowers (11.9 g per plant), number of flowers per plant (33.5), extraction oil percentage (1) and flavonoids (31.2 mg/ 100 g F.W.), phenols (56.2 mg/ 100 g F.W.) and carotenoids (0.8 mg/ 100 g F.W.) content were obtained from the application of a combination of Fe2+, Cu2+, Zn2+, and Mn2+ at 400 ppm concentration as compared to control in the second year. It seems that in climatic and edaphic conditions of Shahrekord, the best treatments for obtaining the highest extraction percentage and morphological characters of Calendula is 400 ppm of Fe, Zn, Cu and Mn.
در جهت ارزیابی محلولپاشی عناصر ریزمغذی بر عملکرد و ترکیبات عصاره همیشه بهار، دو آزمایش در قالب طرح بلوکهای کامل تصادفی در طی دو فصل زراعی سال‌های 1393 و 1394 در شهرکرد انجام شد. اهداف مورد مطالعه در این تحقیق بررسی اثرگذاری عناصر ریزمغذی آهن، مس، روی و منگنز هر کدام در غلظت‌های 0، 200 و 400 میلی گرم در لیتر، بر میزان فلاونوئید، فنول، کاروتنوئید، درصد عصاره، وزن خشک و تعداد گل در همیشه بهار بود. نتایج نشان داد که عناصر ریزمغذی آهن، روی، مس و منگنز بر وزن تر و خشک گل، تعداد گل، درصد عصاره، ترکیبات فلاونوئید، فنل و کاروتنوئید، اثر معنیداری داشتند. بیشترین وزن خشک گل (9/11 گرم در گیاه)، تعداد گل در هر گیاه (5/33)، درصد عصاره (1)، فلاونوئید (2/31 میلیگرم در 100 گرم وزن تر)، فنل (2/56 میلیگرم در 100 گرم وزن تر) و کاروتنوئید (8/0 میلیگرم در 100 گرم وزن تر) در تیمار ترکیبی آهن، روی، مس و منگنز با غلظت 400 میلی گرم در لیتر نسبت به شاهد و در سال دوم تحقیق بدست آمد. به نظر میرسد در شرایط اقلیمی و ادافیکی شهرکرد بهترین تیمار در جهت بدست آوردن بهترین میزان عصاره و خصوصیات مورفولوژیکی گیاه همیشه بهار، تیمار 400 میلیگرم در لیتر از عناصر ریزمغذی آهن، روی، مس و منگنز میباشد.
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