نتایج جستجو برای: quantitative and qualitative characteristics

تعداد نتایج: 16955237  

To evaluate quantitative and qualitative traits as well as thrips resistance of onion genotypes, an experiment was conducted at Behbahan Agricultural Research Station, Behbahan, Khuzestan, Iran from 2013 to 2015. The experiment was a split plot based on a randomized complete block design with three replications. Pesticide-treated and pesticide-free plots were considered as sub plots and ten oni...

Journal: :رستنیها 0
فرشته شیخ حسن دانشجوی کارشناسی ارشد، گروه زیست شناسی، دانشکده علوم پایه، دانشگاه گیلان، رشت شهریار سعیدی مهرورز دانشیار گروه زیست شناسی، دانشکده علوم پایه، دانشگاه گیلان، رشت([email protected]) یونس عصری دانشیار پژوهش بخش تحقیقات گیاه شناسی، موسسه تحقیقات جنگل ها و مراتع کشور، تهران

the oak genus (quercus l.) is one of the most important genera of beach family (fagaceae) that has ecological and economical importance. chestnutleaf oak (quercus castaneifolia c.a. mey.) is native to iran and distributed in hyrcanian forests. pure and mixed stands of this taxon have covered about 6.5 % of hyrcanian forests. this study was undertaken to evaluate the effects of ecological factor...

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

a novel acrylic acid-functionalized fe3o4 magnetic nanoparticle with a core-shell structure was developed for utilization as a heterogeneous organosuperacid in chemical transformations. the structural, surface, and magnetic characteristics of the nanosized catalyst were investigated by various techniques such as transmission electron microscopy (tem), thermogravimetric analysis (tga), and ft-ir...

ژورنال: سلامت و محیط زیست 2020

Background and Objective: Since industrial waste management requires accurate knowledge of quantity and quality of solid wastes, this study was conducted to assess quantitative and qualitative characterization of industrial solid waste in Qazvin province, Iran and investigate its related pattern management. Materials and Methods: Based on the guideline of Iranian Environment Protection Organiz...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم پایه 1392

a novel and ultra low cost isfet electrode and measurement system was designed for isfet application and detection of hydronium, hydrazinium and potassium ions. also, a measuring setup containing appropriate circuits, suitable analyzer (advantech board), de noise reduction elements, cooling system and pc was used for controlling the isfet electrode and various characteristic measurements. the t...

Journal: :جنگل و فرآورده های چوب 0
سهیل سهیلی اصفهانی کارشناس ارشد مهندسی منابع طبیعی، گرایش جنگل داری، دانشکدۀ منابع طبیعی ساری، ساری، ‏ایران اصغر فلاح دانشیار گروه جنگل داری، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری، ایران

in order to study the qualitative, quantitative characteristics of a pure common populus alba stand in polkalleh & a mixed stand of populus alba & populus nigra in karchegan, two 30-year-old stands were selected with a plantation interval ( spacing) of 2.5 × 1.5 m in each of which 30 pcs of 2 are samples were randomly selected. in each sample pc all the trees diameters were measured using a dia...

Journal: :جنگل و فرآورده های چوب 0
مجتبی آذریان دانشجوی کارشناسی ارشد جنگل شناسی و اکولوژی جنگل، دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران محمد رضا مروی مهاجر استاد گروه جنگل داری و اقتصاد جنگل دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران وحید اعتماد استادیار گروه جنگل داری و اقتصاد جنگل دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران انوشیروان شیروانی استادیار گروه جنگل داری و اقتصاد جنگل دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران سید محمد معین صادقی دانشجوی دکتری جنگل شناسی و اکولوژی جنگل، دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران

the aim of study was to evaluate qualitative and quantitative characteristics of old trees in pattom and namkhaneh districts in the nowshahr, northern iran. the trees quantitative characteristics of dbh, total height, slenderness coefficient, trunk height, crown length, buttress height, and canopy cover area and qualitative characteristics of crown and trunk, i.e., health, vitality, and concurr...

Background: As a job design technique, job enrichment emphasizes intra-job motivation in job duties and responsibilities to achieve appropriate behavioral outcomes. The present study aims to design and explain a job enrichment model considering the behavioral dimension of employees in Social Security Organization. Methods: The research method was conducted based on qualitative content analysis...

ژورنال: علوم آب و خاک 2007
ذبیح اله زمانی, , علی ساعی, , علی عبادی, , محمد رضا فتاحی مقدم, , سید ضیاالدین طباطبایی, , علی سرخوش, , محمد رسول اکرمی, ,

In order to determine the most important quantitative and qualitative characteristics of pomegranate fruit and its components for categorizing the genotypes, a study was carried out using 24 genotypes. In this study 28 quantitative and qualitative characteristics of pomegranate fruit and seed were evaluated. Analysis of variance showed that all of the characteristics in examined genotypes were ...

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