نتایج جستجو برای: water and salinity limitations

تعداد نتایج: 16937283  

2010
F. Begum I. M. Ahmed A. Nessa W. Sultana

Effect of salinity on sprouting water uptake, ion uptake and metabolic efficiency of wheat seeds in the variety kanchan were studied in Jaydebpur. The treatments were 0, 4, 8, 12 and 16dS salinity level. The experiment was set in CRD with four replications. There were 50 seeds per petridish. Seeds were moistened with saline solution. Germination was recorded up to 72 hours with an interval of 1...

2007
Kelly T. McGowan Jonathan B. Martin

Locations and compositions of submarine ground water discharge (SGD), which constitutes sources to coastal zones of low salinity water, terrestrial contaminants, and solutes with concentrations elevated by diagenetic reactions, may be altered in tropical settings where widespread mangrove forests increase salinity of shallow pore waters through evapotranspiration. The red mangrove (Rhizophora m...

Laboratory studies were conducted to compare the relative fitness of clodinafop-propargyl herbicide resistant Lolium rigidum accessions with their clodinafop-propargyl susceptible counterparts in 2014. Factors evaluated were Lolium populations at constant salinity stress (0, 5, 10, 15, 20 and 25 dS cm2) and water stress (0, -3, -6, -9, -12 and -15 bar). The maximum germination in salinity stres...

Journal: :آب و خاک 0
جواد باغانی امین علیزاده حسین انصاری مهدی عزیزی

introduction: production and growth of plants in many parts of the world due to degradation and water scarcity have been limited and particularly, in recent decades, agriculture is faced with stress. in the most parts of iran, especially in the khorasan razavi province, drought is a fact and water is very important. due to melon cultivation in this province, and the conditions of quality and qu...

Journal: :زیست شناسی جانوری تجربی 0
محمود نفیسی بهابادی دانشیار گروه شیلات دانشکده کشاورزی و منابع طبیعی دانشگاه خلیج فارس، بوشهر وحید مرشدی پژوهشکده خلیج فارس، دانشگاه خلیج فارس، بوشهر

abstarct at the present study effects of salinity were studied on growth and feeding performance, survival rate and blood biochemical parameters of pre on-growing rainbow trout (oncorhynchus mykiss) with initial weight 93.22±4.11 g for 60 days. after adaptation for 10 days to water salinity, 450 fish were distributed in 5 treatments and 3 replicates according to completely randomized design. be...

ژورنال: علوم آب و خاک 2019

Evaporation is one of the important components in water body’s management, leading to changes in the water level and water balance. Also, its accurate estimation is faced with certain difficulties and complexities. Because of the limitations of physical and empirical methods based on the meteorological data, remote sensing technology can be widely used for evaporation calculation due to its cap...

برزوئی, اعظم, جمالی, سپیده سادات , پاکنژاد, فرزاد,

In order to investigate the effects of irrigation water salinity on root traits and absorption of sodium (Na+) and potassium (K+) by wheat cultivars, a factorial experiment, based on completely randomized design with 3 replications, was ‎conducted under greenhouse conditions. The main factor was 7 wheat genotypes ]Ghods, Marvdasht and Bahar (sensitive to salinity) and Arg, Bam, Sistani and Sing...

Laboratory studies were conducted to compare the relative fitness of clodinafop-propargyl herbicide resistant Lolium rigidum accessions with their clodinafop-propargyl susceptible counterparts in 2014. Factors evaluated were Lolium populations at constant salinity stress (0, 5, 10, 15, 20 and 25 dS cm2) and water stress (0, -3, -6, -9, -12 and -15 bar). The maximum germination in salinity stres...

2016
Nickitas Georgas Lun Yin Yu Jiang Yifan Wang Penelope Howell Justin Schulte Philip Orton Bin Wen Richard P. Signell

This article presents the results and validation of a comprehensive, multi-decadal, hindcast simulation performed using the New York Harbor Observing and Prediction System ́s (NYHOPS) three-dimensional hydrodynamic model. Meteorological forcing was based on three-hourly gridded data from the North American Regional Reanalysis of the US National Centers for Environmental Prediction. Distributed h...

A. Azizian, A.R. Sepaskhah, Sh. Zand-Parsa

Irrigation, salinity and nitrogen (N) are the three major limiting environmental factors inmaize yield potentials especially in arid and semi-arid regions. An integrated water and N MaizeSimulation Model (MSM) was modified for salinity conditions using 2009-2010 fieldexperiments data in southwest of Iran. Irrigation levels were: I1=1.0ETc+0.25ETc as normalleaching amount, I2=0.75I1 and I3=0.5I1...

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