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

تعداد نتایج: 18507882  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1389

abstract this study was carried out to compare disinfecting effects of nanosilver with other feed disinfectants on layer hen performance, immune system, gastrointestinal microflora and intestinal morphology. total of 90 layers (lsl) were divided into five groups consisting: 1-control, 2- formalin (200 ppm), 3- formaycin (200 ppm), 4- nanosilver in drinking water (7.5 ppm) and 5-nanosilver in f...

Salinity is one of the most important abiotic stresses that have restricted affects on plant growth and yield. Magnetic field can ameliorate the negative effect of salinity with induction of plant antioxidant activity. In present research, the effect of static magnetic fields (0 anf 4 mT) on some physiological parameters and antioxidative capacity were investigated under salinity stress at conc...

Journal: :تولید گیاهان زراعی 0
محمد حسین قربانی مربی گروه زراعت، دانشگاه علوم کشاورزی و منابع طبیعی گرگان محبوبه بصیری دانشجوی دکتری زراعت دانشگاه زابل

this experiment was carried out to investigate the effect of plant density on growth and seed yield of wheat (kodasht cultivar) under saline soils and rainfed condition inanbarolum region of golestan province in 2008-09. an experiment was conducted in three fields with different salinities (6.73, 9.34 and 11.63 ds m-1) based on randomized complete blocks design. treatments were four plant densi...

دشتی, حسین, رحیمی, اصغر, زیبایی, سمیه ,

 In order to evaluate the effect of seed priming on salinity modification of safflower (cv. Goldasht), a hydroponic experiment was conducted at Research Greenhouse of Vali-e-Asr University of Rafsanjan, Iran, in 2009. Priming treatments at 4 levels (no priming as control, and priming with distilled water, NaCl and Ca(NO3)2 for 24 hours) and salinity treatments at 4 levels (0, 8, 16 and 24...

Journal: :به زراعی کشاورزی 0
نفیسه اسدی نسب دانشجوی سابق کارشناسی ارشد زراعت، دانشکده کشاورزی، دانشگاه شهید چمران اهواز پیمان حسیبی عضو هیات علمی گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه شهید چمران اهواز حبیب اله روشنفکر عضو هیات علمی گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه شهید چمران اهواز موسی مسکرباشی گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه شهید چمران اهواز

to study some physiological and morphological traits of sugar beet varieties in response to salinity stress, three multi-germ sugar beets (13030, 22393 and ic) were grown in the greenhouse, faculty of agriculture, shahid chamran university, in 2009. the experiment was carried out under three levels of salinity in from of sodium chloride source, that included control (zero), 100 and 200 mm uses ...

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In order to investigate the effect of salinity tension and zinc nano oxide on physiological parameters of Rapeseed and Camelina, a factorial experiment was conducted based on a completely randomized design with three replications in the greenhouse conditions of Department of Biology of Urmia University in 2012-13. The factor of zinc nano oxide was investigated at three levels of zero,  25 and 1...

Salinity tolerance of four grape genotypes [GharaUzum, Hosseini, AghUzum and Keshmeshi] was studied under various salinity levels (25, 50 and 100 mM NaCl). As a result, growth indices were significantly (P<0.05) reduced by salinity, whereas Cl- and Na+ contents in the plant parts were increased. Cl- accumulation exceeded than that of Na+ in all treatments. Among the genotypes studied, GharaUzum...

Journal: :journal of agricultural science and technology 2010
a. r. dadkhah h. grrifiths

this study investigated intra-specific variation in the growth parameters and dry mat-ter partitioning of sugar beet cultivars at different levels of salinity (0, 50, 150, 250 and 350 mm nacl + cacl2 in 5:1 molar ratio) using four cvs, one british (madison) and three iranian cvs (7233-p12, 7233-p21 and 7233-p29). the plants were grown in a controlled greenhouse environment for about 18 weeks. a...

Journal: :علوم باغبانی ایران 0
صفورا سعادتی دانشجوی کارشناسی ارشد دانشکده کشاورزی دانشگاه شهید چمران، اهواز نور اله معلمی دانشیار دانشکده کشاورزی دانشگاه شهید چمران، اهواز

in order to determine the effects of zinc foliar application on the vegetative characteristics, yield and fruit quality in strawberry (fragaria × ananassa duch) cv kordestan under salinity stress conditions, an experiment was carried out hydroponically in glasshouse as a controlled environment during 2009 through 2010. three levels of nacl (0, 15, 30 mm) and three levels of zn (0, 1.5, 3 g/l) w...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده علوم انسانی و اجتماعی 1388

the present study set out (a) to examine the categories of pedagogical knowledge related to the act of teaching of novice and experienced teachers as gleaned from their verbal report of what they were thinking about while teaching and (b) to compare the categories of pedagogical knowledge of novice and experienced teachers. the aim of comparing these two groups of teachers was to see whether di...

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