نتایج جستجو برای: salinity index
تعداد نتایج: 419339 فیلتر نتایج به سال:
Abstract Anthropogenic salinisation of inland waters worldwide causes diverse social, economic and ecological impacts, including shifts in the composition biological communities. I used published data on occurrence aquatic invertebrate taxa relation to salinity develop a novel Invertebrate-Based Salinity Index (IBSI) suitable for purposes such as indicating impact anthropogenic charting faunal ...
The effect of four water salinity levels (0.75, 5, 10 and 15 dS.m -1 ) on growth indices and physiological parameters in some wild pistachio (P. atlantica, P. atlantica subsp. kurdica, P. atlantica subsp. mutica and P. atlantica subsp. cabulica) were investigated under greenhouse conditions. Leaf dry weight was reduced to about 30-54% at ECw 10 dS.m -1 . Chemical analysis of shoot and root indi...
With the increased interest in studying the sea surface salinity anomaly (SSSA) of the tropical Indian Ocean during the Indian Ocean Dipole (IOD), an index describing the dipole variability of the SSSA has been pursued recently. In this study, we first use a regional ocean model with a high spatial resolution to produce a high-quality salinity simulation during the period from 1982 to 2014, fro...
This research was conducted to study the role of phenology in wheat cultivars’ reaction to salinity stress. The experiment was carried out as factorial, based on a randomized complete block design with three replications, in Bu-Ali Sina University, Hamadan, Iran. Treatments included four wheat cultivars (Alvand, Toos, Navid and Sayson) and five levels of water salinity (0, 4, 8, 12 and 16 dS/m)...
In order to investigate the effects of salinity stress and three nitrogen fertilizers on some traits of psyllium (Plantago ovata) plants, a factorial experiment, as completely randomized design with three replications, was carried out at University of Zabol, in 2010. Salinity at three levels (0, 100 and 200 mM sodium chloride) was the main plot and three forms of nitrogen source (nitrate from c...
a two years (2006–2007 and 2007-2008) experiment was conducted at national salinity research center, yazd, to evaluate salt-tolerant genotypes of brassica napus, b. rapa and b. juncea. to screen genotypes in the first growing season, 58 genotypes were grown under two irrigation water salinity levels of 2 and 12 ds m-1 in an augmented randomized complete block design with six replicated checks. ...
In recent years, the involvement of nitric oxide (NO) in numerous physiological processes, particularly the mitigation of stress-induced negative effects on plants, has been clarified. Under salinity conditions, plants are subjected to a secondary oxidative stress. The present work was designed to examine the exogenous application of nitric oxide (NO), in the form of its donor sodium nitr...
Basil (Ocimum basilicum L.) belongs to Lamiaceae and is relatively sensitive to salinity. Salinity is one of the most important factors limiting crop production. This study was conducted in a three-replicate completely randomized factorial design to comparative investigate the effects of different concentration of silicon (SiO4-2) application [control (without Si), 1 and 2 mM] and ascorbic acid...
abstract salinity tolerance is one of the major factor influencing crop productivity in arid and semi-arid areas. the salinity tolerance of fruit trees can be enhanced through the use of tolerant rootstocks. this experiment was conducted to investigate the effects of salinity stress and rootstock on the growth, photosynthetic rate and nutrient concentrations of almond (prunus dulcis miller.) cv...
salinity and drought are two major abiotic stresses that affect rice (oryza sativa l.) production in worldwide. salt and drought tolerance and high seedling vigor of rice is one of the important traits in the establishment of seedling in direct planting system and saline and drought environments. in this research, the mapping population of f2:4 families derived from the cross between local vari...
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