In order to study the effect of foliar applications of micronutrients on yield, extraction oil production and chemical composition of marigold (Calendula officinalis), two experiment were conducted on the complete randomized block design with three replications during two growing seasons 2014 and 2015 in Shahrekord, Iran. 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 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 marigold plants. So that the highest value of dry weight of flowers (11.9 gr per plant), number of flowers per plant (33.5), extraction oil percentage (1) and flavonoids (31.2 %), phenols (56.2 %), carotenoids (0.8 %) content were obtained by application of the combination of Fe2+, Cu2+, Zn2+, and Mn2+ at 400 ppm concentration compared to control in second year. It seems that in climatic and edaphic characters of Shahrekord, the best treatments for obtaining of the most extraction percentage and morphological characters of Calendula is 400 ppm of Fe, Zn, Cu and Mn.
کلید واژگان :GC/MS, Extraction, Marigold, Nutrition, Phytochemical.
ارزش ریالی : 300000 ریال
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