نتایج جستجو برای: coneflower

تعداد نتایج: 144  

Journal: Journal of Herbal Drugs 2011
Ali Mehrafarin Esmaeil Khosravi Hassanali Naghdibadi, Mohammad Taghi Khosravi Reza Hajiaghaee

Background & Aim: This experiment investigated the effect of foliar application of methanol and ethanol on the biomass yield of medicinal plant Echinacea purpurea. Purple coneflower is an herbaceous perennial in the Asteraceae family that is used in therapy of respiratory tract infection and bacterial otitis. Experimental: This experiment was conducted in randomized complete ...

Journal: :Environmental pollution 2004
Peter L Finkelstein Alan W Davison Howard S Neufeld Tilden P Meyers Arthur H Chappelka

Although there has been a great deal of research on ozone, interest in exposure of native, herbaceous species is relatively recent and it is still not clear what role the pollutant has in their ecological fitness. The ozone exposure of a plant is usually expressed in terms of the concentration above the canopy or as a time-weighted index. However, to understand the physiological effects of ozon...

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