نتایج جستجو برای: and leaf area were significantly reduced with increasing salinity levels

تعداد نتایج: 18507882  

In order to investigate the effects of salinity and magnesium (Mg) on the growth parameters, physiological characteristics and content of some metabolites in Syrian bean-caper (Zygophyllum fabago) plants, a factorial experiment with completely randomized design was performed and carried out in perlite with Hoagland solution. The treatments were combinations of two levels of salinity (0 and 300 ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیخ بهایی - دانشکده زبانهای خارجی 1392

the present study sought to investigate the role of dynamic assessment (da) in improvement of iranian efl writing performance at different language proficiency levels. to this end, after conducting the quick placement test, 60 iranian efl learners were assigned to two groups with different language proficiency levels. in both groups each participant wrote two compositions, one before and one af...

Journal: :پژوهش های زراعی ایران 0
سمیه میرزایی اصغر رحیمی حسین دشتی شهاب مداح حسینی

in order to investigate the effects of supplementary calcium chloride and potassium nitrate on plant growth of ammi (carum copticum l.) in different salinity levels and nutrient solutions (ns), an experiment based on randomized complete block design (rcbd) with factorial arrangement was conducted under greenhouse condition in the faculty of agriculture, vali-e-asr university of rafsanjan, durin...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه امام رضا علیه السلام - دانشکده ادبیات و زبانهای خارجی 1392

cognitive studies of translation process have recently been awarded a great deal of attention. there exists a psychological angle to almost all translation activities. the present study, thus, deals with analysing the relationships between iranian prospective translators tolerance for ambiguity (ta) and their willingness to translate (wtt). the research was conducted as a mixed methods study, d...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ایلام 1388

the present study was an attempt to determine the types of motivation and levels of foreign language learning anxiety among efl students studying at azad and state universities in kermanshah and to determine the relationship between these two factors and language proficiency and gender. to this end, the foreign language learning motivation scale, by deci and ryan )1985(, were administered to 12...

اخگر, عبدالرضا , اعتمادی, فریدا, دشتی, حسین, مداح حسینی, شهاب,

In order to evaluate the effect of plant growth-promoting rhizobacteria) PGPR( on salt tolerance in vegetative and reproductive growth stages of safflower (Carthamus tinctorius), a randomized complete block design with a factorial combination of bacterial inoculation and salinity, each in three levels, and four replications was conducted in experimental glasshouse of Vali-e-Asr University of Ra...

زاهدی, مرتضی, عشقی زاده, حمیدرضا, عمادی, سارا, نوری پور سی سخت, جواد,

A greenhouse experiment, as hydroponic, was carried out in order to investigate the response of sunflower genotypes (Hison125, Iroflor and Bliezer) to different levels of salinity (0, 60 and 120 mM of NaCl) and Fe (0, 50 and 100 mM) in nutrient solution. The experiment was arranged as factorial, based on a completely randomized blocks design with four replications. Results showed that plant hei...

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

in this thesis protic and aprotic ammonium-based ionic liquids were synthesized and their surface tensions were measured in the range of 298-373k. the protics are alkyl ammonium-based ils with the carboxylate (formate, acetate, propionate) anion and aprotics are quaternary ammonium-based ils with bis(trifluoromethylsulfonyl)imide anion. capillary rise method was used for surface tension measure...

Journal: :پژوهش های تولید گیاهی 0
بیژن سعادتیان دانشجوی دکترای زراعت دانشگاه فردوسی مشهد محمد کافی استاد گروه زراعت و اصلاح نباتات دانشکده کشاورزی دانشگاه فردوسی مشهد. فاطمه سلیمانی دانشجوی دکترای زراعت دانشکده کشاورزی دانشگاه بوعلی سینا همدان.

this research was carried out for evaluation of competitive ability of some wheat cultivars (triticum aestivum l.) of recommended wheat in dargaz region with common weed of feral rye (secale cereale). experiment was conducted as factorial based on randomized complete block design with three replications in 2010-2011 growing season. experimental factors were included four wheat cultivars of says...

Journal: Desert 2011
H. R. Asgari P Van Damme W Cornelis

Crops growing in salt-affected soils may suffer from physiological drought stress, ion toxicity, and mineral deficiency. A pot study was conducted in 2004-2005 in the Aghala area (northern Iran) to study the effect of different salinity levels, i.e. ECe= 3 (control), 8, 12 and 16 dS m-1 on wheat grain, yield components and leaf ion uptake of four Iranian wheat genotypes, i.e. Kouhdasht, Atrak, ...

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