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Foliar boron fertilization as factor affecting the essential oil content and yield of oil components from flower heads of Arnica montana L. and Arnica chamissonis Less. cultivated for industry
Keywords: Arnica montana; A. chamissonis; Boron fertilization; Oil composition; Alpha-pinene; Caryophyllene E; Caryophyllene oxide; Caryophyllene alcohol; Dodecanal; Germacrene D;