نتایج جستجو برای: a factorial experiment was conducted as based upon a randomized complete block design of three replications including three levels of arsenic 0

تعداد نتایج: 23892995  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اراک - دانشکده علوم انسانی 1389

abstract this study examines the relationship between reading anxiety and difficulty of texts as well as the relationship between reading anxiety and students perceived difficulty of the texts. since difficulty is a relative concept, i limited its definition by sticking to the readability formula. we also took students perceived difficulty levels into account. therefore, in the present study, ...

Salinity is one of the major abiotic stresses that affects physiological processes of plants and reduces crop growth and yield. In order to study the effect of salinity stress on some physiological and agronomical traits of Thymus daenensis subsp. daenensis ecotypes and their classification, a factorial experiment was carried out using randomized complete block design with three replications in...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده علوم انسانی و اجتماعی 1391

the present study aimed to investigate the possible effects of focused highlighted error feedback on grammatical accuracy of writing among iranian intermediate efl learners. after selecting 52 homogenous participants from among 70 university students attending azad university of rasht and randomly dividing them into two intact groups of 26 students, the researcher exposed the participants of th...

Journal: :علوم گیاهان زراعی ایران 0
محمد سیبی دانشجوی کارشناسی ارشد زراعت، دانشگاه آزاد اسلامی، واحد اراک، اراک، باشگاه پژوهشگران جوان، اراک، ایران. محمد میرزاخانی استادیار، دانشگاه آزاد اسلامی، واحد فراهان، گروه زراعت، فراهان، ایران مسعود گماریان استادیار، دانشگاه آزاد اسلامی، واحد اراک، استادیارگروه زراعت و اصلاح نباتات، اراک، ایران سید حسام الدین یعقوبی دانشجوی کارشناسی ارشد زراعت، دانشگاه آزاد اسلامی، واحداراک، ایران

a field study was carried out at the islamic azad university of arak in 2010 to find out the effects of salicylic acid and water deficit stress on oil yield and some physiological characteristics of different varieties of sunflower. the experiment was laid out in a factorial split plot based on a randomized complete block design with four replications. treatments consisted of water stress in th...

Journal: :پژوهش های کاربردی زراعی (زراعت سابق) 0
انسیه اشرفی دانشجوی دکترای زراعت، دانشکده کشاورزی، دانشگاه صنعتی اصفهان جمشید رزمجو استاد گروه زراعت، دانشگاه صنعتی اصفهان

this experiment was conducted at the agricultural research farm of isfahan university of technology in 2007-2008 to evaluate the effects of seed treatment and the levels of irrigation regimes on three safflower cultivars. a split plot factorial arrangement was used in a randomized complete block design with three replications. main-plot consisted of three irrigation regimes (60, 105 and 140 mm ...

Abstract Salinity is one of the most important factors limiting plant growth and production around the world. Gibberellic acid is known as a strong growth stimulator, effective on seed germination and breaking of seed dormancy in various plant species. In order to study the response of Safflower,Sofeh cultivar, to salinity stress, a factorial experiment was conducted based on a randomized...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیخ بهایی - دانشکده زبانهای خارجی 1391

the skill of reading in english as a foreign language is an important and challenging one which is affected both by linguistic and extra linguistic factors. since vocabularies are part and parcel of every reading comprehension text, knowing enough vocabulary always facilitates this process. however, guessing strategy as one of the most important strategies has consistently ignored by language l...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یاسوج - دانشکده علوم 1391

in this investigation the effect of external field on the electron density of nanostructures of cds, cdse, cdte, gaas and polymeric structure of three, four, five and six units of cds as a kind of nanosolar cells has been studied theoretically. as modeling this system in nanodimension, molecular structures has used. specific properties of molecular structures permit us to consider different sym...

Journal: :حفاظت گیاهان 0
محمد روزخش سید وحید اسلامی مجید جامی الاحمدی

employment of solarization using the polyethylene mulch can be effective as a non-chemical approach for some control noxious weed management such as purple nutsedge (cyperus rotundus). in order to determine the effect of different levels of polyethylene mulches including one- layer clear polyethylene film, two- layer clear polyethylene film, one- layer black polyethylene film and two- layer bla...

Journal: :علوم گیاهان زراعی ایران 0
سید علی محمد مدرس ثانوی استاد، دانشگاه تربیت مدرس، دانشکده کشاورزی، گروه زراعت و اصلاح نباتات، تخصص: فیزیولوژی گیاهان زراعی علی اکبر صادقی نژاد دانشجوی ارشد تربیت مدرس سیدعلی طباطبایی استادیار یزد کمال السادات اسیلان استادیار دانشگاه پیام نور کرج

in order to study the effect of water deficit stress at different growth stages on yield and seed oil quality of rapeseed cultivars, a field experiment was conducted as split-plot in a randomized complete block design arrangement with three replications in 2009-2010 growing seasons in abarkouh in iran. four levels of irrigation were located in the main plot including, (i1) normal irrigation bas...

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