نتایج جستجو برای: 100 and 200 mm nacl

تعداد نتایج: 16900316  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اراک - دانشکده علوم پایه 1390

هفت درصد از کل زمین ها و پنج درصد از زمین های کشاورزی تحت تاثیر شوری هستند. اثرات مضر شوری به علت غلظت سمی یون های na+ و cl- ، به هم خوردن تعادل عناصر غذایی و تنش اسمزی بوده و قابلیت تولید و بازده را متاثر می کند. در این تحقیق بذر salsola arbuscula در محیط های w.a (حاوی: 0 , 100 , 200 , 250 , 300 mm nacl) و m.s (حاوی:0 , 100 , 200 , 250 , 275 , 300 mm nacl)، در شرایط در شیشه کشت و به ترتیب گیاه...

سلیمی, حمیرا, غفاری, رویا, میقانی, فریبا,

Mesquite is an invasive and problematic weed in warm and dry areas and so its management is very important. In order to study the effective factors on mesquite seed germination, the following studies were conducted to investigate: 1- seed viability; 2- the effect of constant temperatures on seed germination including 5, 10, 15, 20, 25, 30, 35 and 40°C independent dark and independent light ...

2013
NOHA S. KHALIFA

SDS-PAGE electrophoresis was used to study the effect of NaCl on protein expression in two cultivars of tomato (Solanum lycopersicum L.): Edkawi (salt-tolerant) and Castle rock (salt-sensitive). Five-day-old seedlings were grown on MS agar media supplemented with 0, 50, 100, 150, 200 and 300 mM NaCl. Two days after treatment the seedlings were examined to determine the effect of salt on their g...

Journal: :Agriculture 2022

The current study was conducted in a pot experiment with sand bed soil for two winter seasons (2019/20, 2020/21) to illuminate the impact of calcium lignosulfonate (Ca-LIGN) (100 mg/L) alleviating various levels NaCl (0, 100, 200, and 300 mM) on barley cultivars, Giza132 Giza133. Giza133 outgrew under salinity stress by accumulating less Na+ content retaining more K+ content. Surprisingly, Ca-L...

Populus euphratica tree is a species naturally growing in riparian zones of rivers in arid and semiarid region where seasonal flooding and soil waterloging provides the conditions for this species. The aim of current study was to assess survival, growth characteristics and biomass allocation of Populus euphratica seedlings exposed to combined flooding- salinity stress at four levels including c...

2005
M. Ajmal Khan Irwin A. Ungar Allan M. Showalter M. A. Khan

Salt tolerance of Arthrocnemum macrostachyum (Moric.) C. Koch (Chenopodiaceae), a stem-succulent halophyte most commonly found in the intertidal regions of the provinces of Sind and Balochistan, Pakistan, was investigated. Plants were grown for 125 d at six sodium chloride (NaCl) concentrations from 0 to 1000 mM to determine the effects of salinity on ion accumulation, plant water status, and b...

2016
Ya-Qing Pan Huan Guo Suo-Min Wang Bingyu Zhao Jin-Lin Zhang Qing Ma Hong-Ju Yin Ai-Ke Bao

Atriplex canescens (fourwing saltbush) is a C4 perennial fodder shrub with excellent resistance to salinity. However, the mechanisms underlying the salt tolerance in A. canescens are poorly understood. In this study, 5-weeks-old A. canescens seedlings were treated with various concentrations of external NaCl (0-400 mM). The results showed that the growth of A. canescens seedlings was significan...

Journal: :progress in biological sciences 2013
mahboobeh riahi ali akbar ehsanpour

salinity is a major limiting factor for plant growth and development. to evaluate the impact of p5cs gene expression under in vitro salt stress condition, transgenic tobacco (nicotiana plumbaginifolia) carrying p5cs gene and non-transgenic plants were treated with 0, 100, 150, 200 or 250 mm nacl for 28 days. proline content, lipid peroxidation and the activity of some antioxidant enzymes after ...

Journal: :The Journal of biological chemistry 2002
E Sonay Kuloğlu Darrell R McCaslin John L Markley Brian F Volkman

NMR spectra of human lymphotactin (hLtn), obtained under various solution conditions, have revealed that the protein undergoes a major conformational rearrangement dependent on temperature and salt concentration. At high salt (200 mm NaCl) and low temperature (10 degrees C), hLtn adopts a chemokine-like fold, which consists of a three-stranded antiparallel beta-sheet and a C-terminal alpha-heli...

Journal: :Turkish Journal of Agricultural and Natural Science 2022

Bu çalışma; aspir çeşitlerinin çimlenme ve çıkış dönemlerinde tuz (NaCl) stresine karşı tepkilerini belirlemek amacıyla yürütülmüştür. Denemede Asol, Balcı, Dinçer, Linas Olas çeşitleri materyal olarak kullanılmıştır. Araştırmada tohumlarına döneminde saf su (kontrol) ile 3 farklı NaCl (100 mM, 200 mM 300 mM) dozu uygulanmıştır. Çimlenme denemesi, petri kaplarında tesadüf parselleri faktöriyel ...

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