نتایج جستجو برای: root volume

تعداد نتایج: 449763  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده علوم ریاضی 1392

در سال های اخیر هندسه فینسلر نه تنها به عنوان موضوعی مدرن که شامل قضایا و تکنیک های متعدد می باشد مطرح است، بلکه بعنوان موضوعی مهم در حل مسایل ترمودینامیک، اپتیک، اکولوژی، بیولوژی و ... پیشرفت های چشم گیری داشته است. در این پایان نامه متریک های ریشه m-ام تعمیم یافته، روی یک منیفلد n-بعدی m را مورد بررسی قرار می دهیم که خواص جبری خاصی دارند. در مقاله(on einstein m-th root metrics)، نویسندگان خوا...

To study the effects of vegetable oils on the performance of Imazethapyr (a herbicide with a relatively high amount of residue in the soil and environment) in barnyardgrass (Echinochloa crus-galli Beauv) control, a factorial experiment based on completely randomized design with four replications was conducted in the Research Greenhouse of College of Agriculture, Birjand University, Birjand, Ira...

ابراهیمی‌زاده , محمدعلی, حسن‌لی, علی‌مراد ,

Root depth is one of the main parameters affecting soil moisture availability held within the plant root zone. This study was conducted to evaluate the trend of corn root development during the growing season in different irrigation methods with two water qualities, and distribution of roots in soil profile. The experiment was a split plot design with three main treatments (subsurface drip(SSD)...

2014
Francesco Furfaro Estabelle SM Ang Ricky R Lareu Kevin Murray Mithran Goonewardene

BACKGROUND This study aims to investigate, utilising micro-computed tomography (micro-CT) and histology, whether the topical application of nerve growth factor (NGF) and/or epidermal growth factor (EGF) can enhance periodontal, alveolar bone, root and pulpal tissue regeneration while minimising the risk of pulpal necrosis, root resorption and ankylosis of replanted molars in a rat model. METH...

Considering the effect of salinity stress on the quantitative and qualitative traits of sugar beet genotypes, it seems necessary to study the response of genotypes obtained from breeding programs to salinity stress. For this purpose, 17 full-sib genotypes (derived from sibling crossing) with 7 different tolerant control under two salinity stress (electrical conductivity 17.36 dsm) and without s...

Journal: :Journal of endodontics 2011
Marcelo Haas Villas-Bôas Norberti Bernardineli Bruno Cavalini Cavenago Marina Marciano Aldo Del Carpio-Perochena Ivaldo Gomes de Moraes Marco H Duarte Clovis M Bramante Ronald Ordinola-Zapata

INTRODUCTION The aim of this study was to determine the mesiodistal and buccolingual diameter, apical volume, and the presence of isthmuses at the apical level of mesial root canals of mandibular molars. METHODS Sixty extracted first and second mandibular molars were scanned by using a SkyScan 1076 micro-computed tomography system with a voxel size of 18 μm. The apical thirds of the samples w...

2013
Frédéric Danjon Hayfa Khuder Alexia Stokes

This study aims at assessing the influence of slope angle and multi-directional flexing and their interaction on the root architecture of Robinia pseudoacacia seedlings, with a particular focus on architectural model and trait plasticity. 36 trees were grown from seed in containers inclined at 0° (control) or 45° (slope) in a glasshouse. The shoots of half the plants were gently flexed for 5 mi...

Journal: :تولید گیاهان زراعی 0
مجید جیریایی دانشجوی کارشناسی ارشد اگرو اکولوژی، دانشگاه شهید چمران اهواز اسفندیار فاتح عضو هیأت علمی گروه زراعت و اصلاح نباتات دانشکده کشاورزی دانشگاه شهید چمران اهواز امیر آینه بند عضو هیأت علمی گروه زراعت و اصلاح نباتات دانشکده کشاورزی دانشگاه شهید چمران اهواز

in order to evaluation the effect of mycorrhiza and azospirillum on some characteristics of wheat cultivars in pitch stage, an experiment was conducted in the research station of shahid chamran university of ahvaz, iran during in 2012-13. the experimental design was factorial based on randomized complete blocks design with three replications. the treatments including of mycorrhiza fungi in thre...

Journal: :علوم باغبانی 0
سلاح ورزی سلاح ورزی تهرانی فر تهرانی فر گزانچیان گزانچیان آرویی آرویی

abstract the lack of water is the most important problem in extensive landscape especially turfgrass in arid and semi arid regions. the root responses in native and commercial grasses under drought stress were investigated. this experiment was in a factorial experiment based on unbalanced completely random design on the year 2006. the specious that we used in this experiment included (i) commer...

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