نتایج جستجو برای: platanus orientalis
تعداد نتایج: 4003 فیلتر نتایج به سال:
Platanus orientalis L., the oriental plane perennial woody tree [1] with important riparian species [2] is widely spread in Crete and other southern islands. Its natural spread ranges from the southern Balkans, Crete, mountains of Turkey, Syria, Iran and Iraq, eastwardly to Kashmir valley, where it is familiarly known as the ‘chinar’. Chinar, Platanus orientalis kashmeriana, is the lone species...
Objective: The present study aimed to determine the effects of Rosmarinus officinalis (R. officinalis) and Platanus orientalis(P. orientalis) extracts on asthma. Materials and Methods: We conducted a randomized, double-blind, active-comparator study to evaluate the effect of P. orientalis and R. officinalis extracts on asthmatic patients resistant to routine treatment.The subjects were randomly...
Three biophysical approaches were used to get insight into increased thermostability of thylakoid membranes in isoprene-emittingplants.Arabidopsis (Arabidopsis thaliana) plants genetically modified to make isoprene and Platanus orientalis leaves, in which isoprene emission was chemically inhibited, were used. First, in the circular dichroism spectrum the transition temperature of the main band ...
Influence of Environmental Pollution on Leaf Properties of Urban Plane Trees, Platanus orientalis L.
To investigate whether leaves of plane trees (Platanus orientalis) are damaged by traffic pollution, trees from a megacity (Mashhad, Iran) and a rural area were investigated. Soil and air from the urban centre showed enrichment of several toxic elements, but only lead was enriched in leaves. Leaf size and stomata density were lower at the urban site. At the urban site leaf surfaces were heavily...
Tehran, one of the heavily-populated capitals, is severely suffering from increasing air pollution. To show a documented trend of such pollutants during last years, plane tree species (Platanus orientalis) were suited to be studied as indicators, for the species have been planted throughout the city many years ago. Two areas (Saadatabad and Narmak districts) allotting different contents of crow...
درخت چنار یکی از درختان مهم در فضای سبز شهر تهران است که در سال های اخیر تحت تاثیر آلودگی شدید هوای تهران دچار خزان زود هنگام شده است. در پژوهش حاضر به منظور مشخص شدن علت این پدیده صفاتی نظیر سطح برگ وزن خشک، هدایت روزنه، مقاومت روزنه، رطوبت نسبی برگ، غلظت نسبی کلروفیل، مقادیر عناصر کلسیم، منیزیوم، سرب و کادمیوم مورد سنجش قرار گرفت. برگ درختان چنار در اواخر بهار از سه منطقه شهر تهران با مقادیر ...
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