نتایج جستجو برای: fe and zn concentrations respectively 035

تعداد نتایج: 16866233  

2005
John Ogony Odiyo Luke Chimuka

A detailed study has been conducted to determine the contamination of Thohoyandou roadside soils, vegetation, sewage and river waters by Zn, Cu, Cr, Pb, Cd, Fe, Pt and Pd. The study further investigated the correlation between these trace metals in roadside soils and vegetation in order to infer the potential impacts of roadside trace metals contamination of vegetation. Collected surface soil a...

Journal: :Journal of environmental sciences 2015
Shouliang Huo Jingtian Zhang Kevin M Yeager Beidou Xi Yanwen Qin Zhuoshi He Fengchang Wu

The technique of DGT (diffusive gradients in thin films) using three diffusive gel thicknesses was applied to estimate the mobility and bioavailability of heavy metals in sediments and porewater of Lake Taihu, China. The DGT results showed significantly positive correlations between Co, Pb, Cd and Mn, and Ni and Fe concentrations in porewater. Cu and Zn showed a significantly negative correlati...

Journal: :journal of water sciences research 2013
f ghadimi m ghomi m ranjbar a hajati

measurements of pb, cu, zn, as, ni, hg, and fe heavy metals and major elements and components such as ca, hco3, so4, na, k, mg and cl in soluble rain fractions were performed on rainwater collected at arak plain during the rainy seasons of 2012. concentrations of the heavy metals in the soluble fractions decreased for fe, pb, zn, ni, cu, as and hg, respectively and the major elements and compon...

Bio-fortification of food crops is a cost-effective and sustainable agricultural strategy to decrease malnutrition arising from micronutrients deficiencies. Accordingly, the pot experiments have been conducted to investigate the effectiveness of various foliar-applied iron (Fe) fertilizers in increasing agro-morphological traits and grain micronutrients concentrations of bread wheat plants unde...

Journal: :international journal of environmental research 2013
m. długaszek k. kopczyński

in the paper, the contents of calcium (ca), magnesium (mg), zinc (zn), copper (cu), iron (fe),manganese (mn), chromium (cr), lead (pb), cadmium (cd), aluminium (al), and nickel (ni) were determinedin the meat of roe deers, wild boars, and hares coming from central region of poland. measurements werecarried out using atomic absorption spectrometry. the ranges of median values found for the conce...

Journal: :international journal of environmental research 0
m. długaszek military university of technology, institute of optoelectronics, 00-908 warsaw, gen. sylwestra kaliskiego 2 str., poland k. kopczyński military university of technology, institute of optoelectronics, 00-908 warsaw, gen. sylwestra kaliskiego 2 str., poland

in the paper, the contents of calcium (ca), magnesium (mg), zinc (zn), copper (cu), iron (fe),manganese (mn), chromium (cr), lead (pb), cadmium (cd), aluminium (al), and nickel (ni) were determinedin the meat of roe deers, wild boars, and hares coming from central region of poland. measurements werecarried out using atomic absorption spectrometry. the ranges of median values found for the conce...

Journal: :به زراعی کشاورزی 0
معرفت مصطفوی راد استادیار، بخش تحقیقات اصلاح و تهیة نهال و بذر، مرکز تحقیقات کشاورزی و منابع طبیعی استان گیلان، رشت، ایران اسماعیل جدیدی دانشجوی کارشناسی ارشد، گروه علوم و تکنولوژی تولید بذر، دانشکدة کشاورزی، دانشگاه آزاد اسلامی واحد آشتیان، آشتیان، ایران تقی بابایی مربی پژوهشی، بخش تحقیقات اصلاح و تهیة نهال و بذر، مرکز تحقیقات کشاورزی و منابع طبیعی استان مرکزی، اراک، ایران.

in order to evaluate the seed yield and qualitative traits and oil in some winter rapeseed (brassica napus l.) varieties as affected by micronutrient elements, this experiment was performed during 2011 - 2012 cropping seasons as split plot arrangement in randomized complete block design with three replications, in arak, iran. micronutrient fertilizers including of zero as check, fe, zn, mn, fe ...

Journal: :international journal of environmental research 0
p.c. mane school of earth sciences, swami ramanand teerth marathwada university, nanded, maharashtra, 431606, india a.b. bhosle school of earth sciences, swami ramanand teerth marathwada university, nanded, maharashtra, 431606, india

algae have been proven efficient biological vectors for heavy metal uptake. in order to further study their biosorption potential, two strains spirogyra sp. and spirulina sp. have been studied under different initial metal concentrations. in recent years, the biosorption processes have been studied extensively using microbial biomass as biosorbent for heavy metal ions removal. in these studies,...

Journal: :Journal of experimental botany 2009
Brian M Waters Cristobal Uauy Jorge Dubcovsky Michael A Grusak

The NAM-B1 gene is a NAC transcription factor that affects grain nutrient concentrations in wheat (Triticum aestivum). An RNAi line with reduced expression of NAM genes has lower grain protein, iron (Fe), and zinc (Zn) concentrations. To determine whether decreased remobilization, lower plant uptake, or decreased partitioning to grain are responsible for this phenotype, mineral dynamics were qu...

Journal: :Plant biology 2009
R Sagardoy F Morales A-F López-Millán A Abadía J Abadía

The effects of high Zn concentration were investigated in sugar beet (Beta vulgaris L.) plants grown in a controlled environment in hydroponics. High concentrations of Zn sulphate in the nutrient solution (50, 100 and 300 microm) decreased root and shoot fresh and dry mass, and increased root/shoot ratios, when compared to control conditions (1.2 microm Zn). Plants grown with excess Zn had inwa...

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