نتایج جستجو برای: and salinity

تعداد نتایج: 16830442  

Journal: :مرتع و آبخیزداری 0
علی اکبر نوروزی دانش آموختة دکتری گروه خاک شناسی دانشگاه تربیت مدرس مهدی همائی استاد گروه خاک شناسی دانشکدة کشاورزی دانشگاه تربیت مدرس عباس فرشاد استادیار دانشکدة علوم زمین دانشگاه توئنته هلند

soil salinity is a limiting factor for plant growth and a serious cause of land degradation. field sampling and statistical analysis for estimating soil salinity is expensive and time consuming. estimating soil salinity by spatial statistical models and geographic information system (gis) is recommended, because it saves labor and time. this study was conducted to evaluate the performance of sp...

2015
Zhixin Xu Lei Gan Tongyu Li Chang Xu Ke Chen Xiaodan Wang Jian G. Qin Liqiao Chen Erchao Li Marie-Joelle Virolle

Nile tilapia Oreochromis niloticus is a freshwater fish but can tolerate a wide range of salinities. The mechanism of salinity adaptation at the molecular level was studied using RNA-Seq to explore the molecular pathways in fish exposed to 0, 8, or 16 (practical salinity unit, psu). Based on the change of gene expressions, the differential genes unions from freshwater to saline water were class...

2002
Kenneth M.Y. Leung Mark Crane David Morritt

The aim of this study was to investigate the effect of salinity on cadmium (Cd) accumulation and metallothionein (MT) expression in the dogwhelk Nucella lapillus (L.). Adult dogwhelks (shell length: 23.4F1.3 mm) were acclimated to salinity of 33 psu (control), 22 or 11 psu under controlled laboratory conditions (9.5 jC; pH 7.9) for 10 days in a stepwise manner by reducing the salinity by 5.5 ps...

Journal: :research in pharmaceutical sciences 0
s. safavi mr. khajehpour

soil salinity affects ions concentrationss of plant tissues and this may alter the merits quality of medicinal plants. experiments were conducted during 2003 at the the isfahan university of technology campus, isfahan, iran, to assess the effects of five soil salinity levels (3.2, 3.6, 4.5, 5.4 and 7.5 ds m-1) on na, k, and ca contents of borage and echium. each plant species was studied in a s...

Journal: :علوم باغبانی ایران 0
حمیدرضا طحانیان دانشجوی سابق کارشناسی ارشد / پردیس کشاورزی و منابع طبیعی دانشگاه تهران علی عبادی استاد / پردیس کشاورزی و منابع طبیعی دانشگاه تهران مریم شهبازی استادیار / پژوهشکدۀ بیوتکنولوژی کشاورزی کرج حسین لسانی استاد / پردیس کشاورزی و منابع طبیعی دانشگاه تهران

salinity, as an abiotic stress, causes significant losses in horticultural production. future of grape production, as one of the most important economical horticultural fruits, depends on breeding programs and using salt tolerant rootstocks. the aim of this study was to investigate the salinity tolerance and the distribution of ions associated with salinity in six genotypes and varieties of gra...

2017
Tefera Tolera Angessa Xiao-Qi Zhang Gaofeng Zhou Sue Broughton Wenying Zhang Chengdao Li

A doubled haploid (DH) population of barley (Hordeum vulgare L.) generated from salinity tolerant genotype CM72 and salinity sensitive variety Gairdner was studied for salinity stress tolerance at germination, seedling emergence and first leaf full expansion growth stages. Germination study was conducted with deionized water, 150 mM and 300 mM NaCl treatments. Seedling stage salinity tolerance ...

ژورنال: علوم زراعی ایران 2022

Salinity is one of the environmental stresses that affects bread wheat grain yield in most parts of the world. One of the basic strategies to mitgiate the effect of non-biological stresses such as salinity is genetic improvement of crop plants. Identification of stress-associated genes is a prerequisite for genetic improvement. In the present study, the role of a number of genes in the aquapori...

Journal: :تولید گیاهان زراعی 0

salinity stress is one of the most important environmental constraints that have been limited agricultural production in iran. therefore, introducing suitable cultivars having desirable yield under salinity stress will lead to increase of production efficiency. in order to study the response of spring safflower cultivars to salinity, an experiment was carried out at the experimental station of ...

Journal: :تولید گیاهان زراعی 0
یونس محمدنژاد تحقیقات کشاورزی سرالله گالشی عضو هیئت علمی افشین سلطانی عضو هیئت علمی فرشید قادری فر عضو هیئت علمی عباسعلی نوری نیا عضو هیئت علمی

background and objectives: the region of the experiment is located in golestan province, iran, with agriculture subject to various farming conditions (rain-fed and irrigation) and different levels of salinity (more than 38% of golestan’s total land area is salt-affected). the purpose of this study has been to evaluate the stress indices in the selection of tolerant wheat genotypes, not only for...

Journal: :Bioresource technology 2007
A Ranga Rao C Dayananda R Sarada T R Shamala G A Ravishankar

Growth of Botryococcus braunii (race 'A') and production of its constituents viz, hydrocarbon, carbohydrate, fatty acid, and carotenoids were influenced by different levels of salinity. Under salinity at 34 mM and 85 mM, 1.7-2.25-fold increase in the relative proportion of palmitic acid and two fold increase in oleic acid were observed. A twofold increase in carotenoid content was noticed at 85...

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