نتایج جستجو برای: fraxinus excelsior
تعداد نتایج: 1212 فیلتر نتایج به سال:
Vessel differentiation in isolated stem segments of Fraxinus excelsior L. after treatment with auxin
The present work evaluates and compares the antioxidant capacities of bioactive constituents in barks ten common wood species from Hungary (Quercus rubra, Prunus serotina, Quercus robur, Betula pendula, Fraxinus excelsior, Robinia pseudoacacia, Carpinus betulus, Picea abies, Alnus glutinosa, Pinus sylvestris). Low-frequency ultrasound was used for intensification extraction bark to obtain extra...
Tree species differ in their physiological responses to drought, but the underlying causes are often unclear. Here we explored of radial growth centennial drought events and sap flow (Fs) seasonal four mixed forests on either moist or drier sites northwestern Switzerland. While diffuse-porous (Fagus sylvatica, Prunus avium, Tilia platyphyllos) showed marked reductions 1976 2003, two known marke...
Weed control is often crucial for successful tree establishment in British forestry. Herbicides currently offer the most cost-effective means available for achieving this, but research into alternatives is required. Recent experiments have been conducted by the Great Britain Forestry Commission investigating the use of 19 alternative ground cover and silvicultural treatments for newly planted a...
over production of uric acid by xanthine oxidase (xo) causes gout. xo inhibitors for example allopurinol are the most important available anti gout drugs. medicinal herbs are available natural sources that may be useful for the treatment of gout. in this study the inhibitory activity of aqueous extracts of matricaria chamomilla l., hypericum perforatum l., fraxinus excelsior l., zea mays l., tr...
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