نتایج جستجو برای: k na and rwc

تعداد نتایج: 17076743  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده شیمی 1389

in this thesis, a new optically active poly(amide-imide) (pai) was synthesized by the indirect polycondensation reaction of the l-phenylalanine based diacid chloride and 4,4?-diaminodiphenylether in the presence of triethylamine in n-methyl-2-pyrrolidone. the formation of pai was confirmed by ftir, 1h nmr and elemental analysis. in next step, the surface of titanium dioxide (tio2) nanoparticles...

2015
Hussein J. Shareef

Salinity is one of the most abiotic stress destructive factors which limit growth and production of date palm offshoots considerably. In order to investigate the effects of antioxidant compounds on growth parameters as indicters to salt tolerance at the date palm offshoots cultivars of Kabkab (female) and Ghannami ahmer (male). Experiment was conducted with seven treatments and four replication...

To study the response of Iranian melon cultivars to salinity stress a factorial experiment based on RCBD with 3 replications was conducted. Four salinity treatments (0, 6.6, 8 and 12 dS/m NaCl( and 16 muskmelon (Cucumis melo L.) cultivars namely ‘Dargazi’, ‘Khatooni’, Abbas shori’, ‘Chah paliz’, ‘Zard Ivanaki’, ‘Gorgab’, ‘Gongi’, Saderati’, ‘Dastgerd’, ‘Sabz Isfahan’, ‘Jalali’, Ghasri Mashha...

Journal: :journal of agricultural science and technology 2014
m. amjad j. akhtar m. anwar-ul-haq r. ahmad m. zaid

a solution culture experiment was conducted to evaluate the salinity tolerance of 15 tomato genotypes in hoagland’s nutrient solution with three levels of nacl (0, 75, and 150 mm). the experiment was conducted in completely randomized design with three replicates. after 30 days of imposition of salt stress, gas exchange parameters including transpiration rate, stomatal conductance, co2 assimila...

Journal: :چغندرقند 0
فادی عباس مرکز تحقیقات علمی کشاورزی حمس، سوریه انتصار الجباوی واحد تحقیقات چغندرقند، دوما، دمشق، سوریه

this study was carried out in the general commission for scientific agricultural research (gcsar) at der ez zour agricultural research center, during 2009- 2010 growing seasons. the role of na+, k+, na+/k+, carbohydrates accumulation of leaves, and sugar content of roots on the osmotic adjustment was studied in 10 sugar beet genotypes (five were monogerms and five were multigerms), under salini...

امینی, فاطمه, حمیدی, زهرا, خوش خلق سیما, نیراعظم, سادات نوری, سید احمد, فوقی, بهروز,

To evaluate laser irradiation effect on salinity tolerance in barley (Hordeum vulgare L.) at the germination phase and seedling, a CRD experiment in factorial arrangement experimental type was conducted at Tehran University, college of Abouraihan, in the year 2011. Experimental factors were four barley genotypes (Reihan, Afzal, Fajr30 and Nosrat), two radiation levels (no laser and laser irradi...

Journal: :Silicon 2022

Abstract Althought safflower is a tolerant crop against many environmental stresses, but its yield and performance reduce under stress. The aim of this experiment was to investigate the effect silicon (Si) application on possibility increasing salinity resistance related mechanisms in safflower. A greenhouse conducted effects Si spraying (0, 1.5 2.5 mM) plants grown salt stress condition (non-s...

Journal: :تولید گیاهان زراعی 0

in order to evaluate the relationships between some traits of iranian rice seedlings under saline conditions,,75 iranian cultivars as traditional, improved and introduced cultivars were used, as a randomized complete block design experiment with 3 replications at rice research institute of iran in three levels of salinity (normal ,1.2 , 4 and 8 ds.m-1) in 2006. root and shoot length, root and s...

2014
Apurba Kanti Choudhury Md Abdul Karim Md Moynul Haque Qazi Abdul Khaliq Jalal Uddin Ahmed Mohammad Mofazzal Hossain

Two tolerant (BB24 and BB43) and two susceptible (BARI busbean-2 and BB04) genotypes of common bean (Phaseolus vulgaris L.) were evaluated for their water status and its relationship with reproductive responses under continuous water stress (50% field capacity) and control (80% field capacity) conditions in a net house covered with polyethylene sheet at the Bangabandhu Sheikh Mujibur Rahman Agr...

Among abiotic stresses, salinity has been increasing over the time for many reasons like using chemical fertilizers, global warming and rising sea levels. Under salinity stress, the loss of water availability, toxicity of Na+ and ion imbalance directly reduces carbon fixation and biomass production in plants. K+ is a major agent that can counteract Na+ stresses, thus the potential of plants to ...

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