نتایج جستجو برای: results showed that increased periods of drought reduced leaf area

تعداد نتایج: 21353100  

Journal: :Plant physiology 2015
Pieter Clauw Frederik Coppens Kristof De Beuf Stijn Dhondt Twiggy Van Daele Katrien Maleux Veronique Storme Lieven Clement Nathalie Gonzalez Dirk Inzé

Although the response of plants exposed to severe drought stress has been studied extensively, little is known about how plants adapt their growth under mild drought stress conditions. Here, we analyzed the leaf and rosette growth response of six Arabidopsis (Arabidopsis thaliana) accessions originating from different geographic regions when exposed to mild drought stress. The automated phenoty...

Journal: :پژوهش های حبوبات ایران 0
مراد شعبان سیروس منصوری فر مختار قبادی سید حسین صباغ پور

drought stress is the most important factor that reduces yield in crops including chickpea and causes some changes in seed composition. this study was performed in order to evaluate the effects of drought stress and starter nitrogen fertilizer on four cultivars of chickpea. experiment was performed in a split-factorial using randomized complete block design with three replications. drought stre...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم اجتماعی و اقتصادی 1389

abstract nowadays, the science of decision making has been paid to more attention due to the complexity of the problems of suppliers selection. as known, one of the efficient tools in economic and human resources development is the extension of communication networks in developing countries. so, the proper selection of suppliers of tc equipments is of concern very much. in this study, a ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1390

a one dimensional dynamic model for a riser reactor in a fluidized bed catalytic cracking unit (fccu) for gasoil feed has been developed in two distinct conditions, one for industrial fccu and another for fccu using various frequencies of microwave energy spaced at the height of the riser reactor (fccu-mw). in addition, in order to increase the accuracy of component and bulk diffusion, instanta...

پیرسته انوشه , هادی, امام, یحیی,

Plant growth regulators (PGRs), which are widely used in agriculture, have various effects on different morphological and physiological characteristics of wheat cultivars. To examine the effect of two PGRs [cycocel (CCC) and salicylic acid (SA)] on some morphological and physiological properties of bread (Roshan) and durum (Yavarous) wheat cultivars under different irrigation regimes [normal (a...

Journal: :پژوهش های حبوبات ایران 0
محمد زارع مهرجردی عبدالرضا باقری احمد رضا بهرامی جعفر نباتی علی معصومی

late-season drought is the major constraint reducing the productivity of chickpea. this experiment was carried out to study response of root and shoot characteristics in 12 chickpea genotypes to drought stress. two-drought stress levels (-3 and -6 bar) induced by peg 6000 and control in hydroponic condition at green house was performed. leaf relative water content (rwc), plant height, number of...

Journal: :مهندسی زراعی 0
اکرم احمدپور سفیدکوهی دانشجوی کارشناسی ارشد، دانشکده علوم زراعی، دانشگاه کشاورزی و منابع طبیعی ساری مهدی قاجار سپانلو دانشیار دانشکده علوم زراعی، دانشگاه کشاورزی و منابع طبیعی ساری محمدعلی بهمنیار دانشیار دانشکده علوم زراعی، دانشگاه کشاورزی و منابع طبیعی ساری

in order to investigate the effects of applying three and five continuous periods of municipal solid waste (msw) with and without npk chemical fertilizer on the amount of micronutrient uptake by different parts of wheat, a pot experiment was conducted in split plot based on randomized complete block design with four replications in 2009. the main plot was a six-fertilizers level including contr...

Journal: :تولید گیاهان زراعی 0
میرزاحسین رشنو دانشجوی دکتری گروه زراعت، دانشگاه تربیت مدرس زین العابدین طهماسبی سروستانی دانشیار گروه زراعت، دانشگاه تربیت مدرس حسین حیدری شریف آباد استاد دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران سیدعلی محمد مدرس ثانوی استاد گروه زراعت، دانشگاه تربیت مدرس رضا توکل افشاری دانشیار گروه زراعت، پردیس کشاورزی و منابع طبیعی دانشگاه تهران

to evaluate of drought stress and foliar application of zinc and iron on two annual medics species, experimental field was carried out with split factorial based on randomized complete block design in three replication with treatments of foliar application (controlled, fe, zn and iron+ zinc) and cutoff irrigation from (50% flowering , lower pod maturity,10 days before starting of flowering and ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان - دانشکده ادبیات و علوم انسانی 1389

abstract this research has been carried out with the purpose of investigating the conditions and related elements of the employment of the educational sciences graduates of hamedan province universities in 1382-1387 academic years. it has been a descriptive research of a correlation kind, and the population number has been 1180 grduates of payam- e noor universites in asad – abaad, kaboudaraha...

Journal: Journal of Herbal Drugs 2013
Abdollah Ghasemi Pirbalouti, Behzad Hamedi Mehrdad Ataei Kachouei Seyed Mohammad Alavi-Samani

Background & Aim: Drought stress, as a main abiotic stress, has a significant influence on growth and metabolic activities of plant species. In this study, the influence of reduced irrigation on dry herbage, essential oil yield, and chemical components of two thyme species were investigated. Experimental: This study was done in an experimental greenhouse, I.A.U., Shahrekord Branch, Iran at 201...

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