نتایج جستجو برای: cupresuss arizonica

تعداد نتایج: 199  

Journal: :caspian journal of environmental sciences 2013
al. et e. khosropour

this research was carried out in order to quantify throughfall (tf) and interception loss (i) and to compare the chemical composition of tf, i.e. lead (pb) and cadmium (cd) as well as electrical conductivity (ec) and ph beneath pinus eldarica and cupressus arizonica plantations and the open field rainfall. the research was accomplished in the chitgar forest park, a semi-arid polluted urban area...

Journal: :Science journal of University of Zakho 2023

This study investigates the leaf anatomy of five Cupressaceae taxa in Kurdistan region-Iraq. Using light microscope for numerical and descriptive anatomical variations three species two varieties belonging to Cupressus, Platycladus, Juniperus genera were examined Taxonomic value. These include characters epiderm, hypoderm, mesophyll layer, resin canals, transfusion tracheids, pith, vascular bun...

Journal: :American journal of botany 2003
Bryan K Epperson Myong Gi Chung Frank W Telewski

The spatial distribution of genotypes for nine polymorphic allozyme loci was examined in a contact zone between Pinus ponderosa var. scopulorum and another tree regarded as either a separate species, Pinus arizonica, or variety, Pinus ponderosa var. arizonica, in southern Arizona. Previous work had identified a steep elevational cline for a key taxonomic trait, number of leaf-needles per fascic...

Journal: :Journal of investigational allergology & clinical immunology 2006
R Ariano G Mistrello G Mincigrucci E Bricchi O Lannotti G Frenguelli G Passalacqua R C Panzani

BACKGROUND Respiratory allergy to the pollen of Cupressaceae is becoming more and more common every year in the Mediterranean area. OBJECTIVE The purpose of this study was to see whether the allergenic potency of Cupressus arizonica pollen diminished after a 6-year period (1994-2000). MATERIALS AND METHODS Among the Cupressaceae, we selected the pollen of C arizonica. The mode of sampling i...

al. et E. Khosropour

This research was carried out in order to quantify throughfall (TF) and interception loss (I) and to compare the chemical composition of TF, i.e. lead (Pb) and cadmium (Cd) as well as electrical conductivity (EC) and pH beneath Pinus eldarica and Cupressus arizonica plantations and the open field rainfall. The research was accomplished in the Chitgar Forest Park, a semi-arid polluted urban area...

Journal: :Toxicon : official journal of the International Society on Toxinology 2005
Greta J Binford Matthew H J Cordes Michael A Wells

Loxosceles spider venoms cause dermonecrosis in mammalian tissues. The toxin sphingomyelinase D (SMaseD) is a sufficient causative agent in lesion formation and is only known in these spiders and a few pathogenic bacteria. Similarities between spider and bacterial SMaseD in molecular weights, pIs and N-terminal amino acid sequence suggest an evolutionary relationship between these molecules. We...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم کشاورزی و منابع طبیعی ساری - دانشکده علوم کشاورزی 1393

ترکیبات حشره کش مشتق شده از گیاهان می توانند جایگزین های طبیعی مناسبی برای حشره کش های رایج باشند. این ترکیبات در طبیعت به راحتی تجزیه شده و برای انسان و موجودات غیر هدف کم خطر هستند. در این تحقیق، سمیت تدخینی، اثرات دورکنندگی و دوام اثر حشره کشی اسانس گونه های سرو شاملcupressus macrocarpa ، c. sempervirens، c. arizonica، thuja orientalis و juniperus communis روی حشرات کامل شپشه قرمز آرد tribol...

Journal: :جنگل و فرآورده های چوب 0
سید محمد معین صادقی دانشجوی کارشناسی ارشد، گروه جنگل‏داری و اقتصاد جنگل، دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران پدرام عطارد دانشیار گروه جنگل‏داری و اقتصاد جنگل، دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران

the main goal of this study was to compare of rainfall interception (i) by pinus eldarica and cupressus arizonica plantations afforested in the chitgar forest park in a semiarid climate zone of iran. from the september 2012 to september 2013, gross rainfall (gr) and throughfall (tf) were collected through 10 and 50 rain-gauges, respectively. i was calculated as the difference between gr and tf....

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید