Morphological features, productivity and quality of pot marigold (Calendula officinalis L.) Cv. “Domaći Oranž“
2016
Filipović, Vladimir | Ugrenović, Vladan | Radanović, Dragoja | Marković, Tatjana | Popović, Vera | Aćimović, Milica | Sikora, Vladimir
In this paper the effect of different organic fertilizer on the morphological, productive and qualitative characteristics of the flower of pot marigold variety "Domestic orange" has been investigated. The trial was conducted during the period 2013 – 2015, at the experimental fields of the Institute for Medicinal Plant Research "Dr Josif Pančić", Pančevo, Serbia. The efficacy of ecological mineral fertilizer “Fertizel”, commercial organic fertilizer “Italpollina” (NPK 4: 4: 4), and compost produced in the Institute’s Production Unit (LAB1) were compared. Control treatment was a plot without application of fertilizer. Following measurements were made at 10 plants from each plot, three times during the season (at the beginning, middle and end of flowering); plant height (cm), weight of the whole plant (g), the number of flowers per plant, average weight of the flower (g) and the mass of dry flowers per plant (g), while the yield of dried flowers per hectare were calculated (kg / ha). The plant material is dried naturally in a thin layer in a protected and drifty place. Content of total carotenoids was also determined. The greatest effect of fertilization on morphological, productive and qualitative traits of pot marigold flower achieved fertilization with “Italpollina”; the highest yields of dry pot marigold flower (2361 kg ha-1) has been achieved in the third year. The content of carotenoids, as well as it was the case with other investigated quality parameters, was apart from the type of fertilizer, also affected by the environmental conditions; the highest content of carotenoids was achieved in the third year at variant fertilized by “Fertizel” (2451 mg kg-1), while the lowest content was achieved in the first year (1158 mg kg-1) and was also fertilized by the same fertilizer.
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