نتایج جستجو برای: beech fagus orientalis lipsky

تعداد نتایج: 7659  

Journal: :iranian journal of biotechnology 2008
parvin salehi shanjani giovanni giuseppe vendramin mohsen calagari

the present study describes approaches for the identification of individual beech trees using maternal tissues from their seeds or fruits. four microsatellite markers were used for genetic analysis of seedlots from fagus orientalis lipsky, a highly out-crossing tree species. seeds from 11 single-tree harvests belonging to one population, (7 seeds from each), as well as non-paranchymatic materna...

ژورنال: :دو فصلنامه تحقیقات ژنتیک و اصلاح گیاهان مرتعی و جنگلی ایران 2011
پروین صالحی شانجانی جوزف جوانی وندرامین محسن کلاگری

در این پژوهش اثر انتخاب مصنوعی به عنوان یکی از مهمترین عملیات در مدیریت جنگل که در طی تنک کردن و انتخاب درختان بذرگیری اعمال می شود بر روی ساختار ژنتیکی راش (fagus orientalis lipsky)  بررسی گردید. در ده جمعیت راش در طول گستره جنگل های خزری، ژنوتیپ درختان جمعیت با ده درخت مادری و بذرهایشان (هفت بذر به ازاء هر درخت) به عنوان نسل بعدی براساس لوکوس های میکروساتلایتی پلی مورف مقایسه گردید. در 2 جمعی...

Journal: :Gazi Üniversitesi Orman Fakültesi dergisi 2022

Aim of study: Information about the diameter distribution a stand is key resource to determine planning strategies, silvicultural treatment options and product variety. In this study, distributions Fagus orientalis Libsky stands located in Karabük region were researched, relationship between parameters Weibull function variables was investigated.
 Area Data used study obtained from pure Or...

Bayat, Mahmoud, Hamidi, Seyedeh Kosar, Sadeghzadeh, Mohammad hossein,

Quantifying forest growth and determination of its affective factors are fundamental for forest management. This study examines the effects of biotic and abiotic factors on the diameter increment of oriental beech (Fagus orientalis Lipsky) in a high-elevation forest in northern Iran using permanent sample plots. The aim of this study was identification and quantifying environmental factors such...

Journal: :Bioresources 2022

Modern solid wood armchairs are developing in the direction of simplicity and lightness, favored by market. However, low mechanical strength connecting joint cantilevered handrails is an issue that needs to be improved. In this study, armrest joints a cantilever armchair made beech (Fagus orientalis Lipsky) were examined. To improve handrail joints, three novel proposed including dovetail tenon...

Journal: :Bioresources 2023

Carbon fiber fabric reinforced laminated veneer lumber (RLVL) pieces were prepared by using heat-treated beech (Fagus orientalis Lipsky) veneers with polyurethane (PU) adhesive as the binder. was tested in three different locations solid material and non-reinforced samples (on bottom line, upper lines-symmetrical). Prior to manufacture of LVL RLVL, heat treatment conducted a laboratory oven at ...

نیکوی, مهرداد, همرنگ, نازنین, پوربابائی, حسن,

  Information about gaps and their sizes distribution is useful for protecting herbaceous diversity. This study was conducted to investigate the effect of gap size on herbaceous species diversity in oriental beech (Fagus orientalis Lipsky.) stand in Asalem, Guilan province. For this study, fifteen gaps in small, medium, and large sizes were randomly selected. Then, herbaceous species were ident...

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