نتایج جستجو برای: root concentration of zn and mn

تعداد نتایج: 24080392  

Journal: :Journal of animal science 2004
B L Creech J W Spears W L Flowers G M Hill K E Lloyd T A Armstrong T E Engle

Two hundred and sixteen weanling gilts (6.65+/-0.08 kg) were used to determine the effects of decreasing supplemental concentrations of Zn, Cu, Fe, and Mn, and trace mineral source (inorganic vs. chelated) on growth performance, mineral status, and fecal mineral concentrations from weaning through development. The study was conducted over three trials with 72 pigs in each trial. Gilts were bloc...

Abbaszadeh, Maliheh , Bakhtiari, Asra, Mirzaei, Rouhollah,

Background and Objectives: The aim of the present study was to assess the probable heavy metals contamination in topsoil surrounding Venarj mine in Qom province using contamination indices and artificial neural networks method. Material and methods:  in order to evaluate the contamination status around Venarj mine in Qom province, 70 soil samples were collected in an area of 22 Km2, and  the to...

Journal: :international journal of environmental research 2013
a.r. karbassi s.s. bassam m. ardestani

during estuarine mixing of fresh water with saline water and due to the flocculation process, aportion of dissolved metals come into particulate phase, and the dissolved load decreases. this process plays an important role in self-purification of heavy metals in rivers. in this study, flocculation of cu, mn, ni, pb and zn during mixing of cheshme-kileh river water with caspian sea water has bee...

حسین‌پور, علیرضا , متقیان, حمیدرضا ,

Rhizosphere is a micro zone with profoundly different microbiological and chemical properties compared to the bulk soil, where availability and fractionation of zinc (Zn) may also vary from the bulk soil. This greenhouse research was performed to study the available Zn and its fractions in the bean rhizosphere and bulk soils of 10 calcareous soils using rhizobox. Total organic carbon (TOC), dis...

امین پناه, هاشم, شریفی, پیمان,

Genetic components controlling a number of nutrient quality traits in rice (Oryza sativa L.) were studied using 7×7 half a diallel cross. This experiment were carried out for determination of gene action, estimation of heritability and determination the best parents. The contents of P, K, Fe, Zn and Mn were measured from white rice grain flour obtained from studied genotypes. Analysis of varian...

Journal: :تولید گیاهان زراعی 0
مهدی براانی دستجردی دانشجوی فارغ التحصیل کارشناسی ارشد محمد رفیعی الحسینی عضو هیات علمی دانشگاه عبدالرزاق دانش شهرکی عضو هیات علمی دانشگاه

the objective of the present study was to assess the combined effects of drought stress and foliar application of zinc and manganese on seed quality of red bean (naz variety) during the accelerated aging test. the experiment was carried out as split factorial in a randomized complete block design (rcbd) with three replications at the research farm of shahrekord university during 2010-2011. drou...

2017
Aleksandra Samecka-Cymerman Krzysztof Kolon Alexander J. Kempers

Concentrations of the elements Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, N, Ni, P, Pb, and Zn were measured in needles and bark of Taxus baccata from the urban environment of Wrocław, Poland, and from a control site relatively free from pollution. In Wrocław the concentrations of N, P, K, and Mg in needles were significantly higher than in bark, but concentrations of Cd, Co, Cr, Cu Fe, Ni, and Zn were...

Journal: :Journal of experimental botany 2005
Ashraf Metwally Vera I Safronova Andrei A Belimov Karl-Josef Dietz

This work evaluates the (cor-)relations between selected biochemical responses to toxic Cd and the degree of Cd sensitivity in a set of pea genotypes. Ten genotypes were analysed that differ in their growth response to Cd when expressed as root or shoot tolerance indices (TIs). Concentrations of non-protein thiols (NPTs) and malondialdehyde (MDA), activity of chitinase, peroxidase (POX), and ca...

Journal: :محیط زیست طبیعی 0
علی داوری دانش آموخته کارشناسی ارشد محیط زیست دانشگاه تهران، دانشکده منابع طبیعی، ایران افشین دانه کار دانشیار دانشکده منابع طبیعی، دانشگاه تهران، ایران نعمت ا... خراسانی استاد دانشکده منابع طبیعی، دانشگاه تهران، ایران آرش جوانشیر استادیار دانشکده منابع طبیعی، دانشگاه تهران، ایران

the accumulation of heavy metals cd, cu, ni, pb, v and zn in the mangrove, avicennia marina, was studied. cu, cd, and pb were accumulated in root tissues to levels higher than surrounding sediments. zn, ni, and v were accumulated to levels lower than sediment concentrations. pb and zn showed little mobility to leaf tissue but cu was accumulated in leaves with low concentration. since pb and zn ...

Journal: :علوم باغبانی 0
اسماعیل رضائی چیانه سعید زهتاب سلماسی علیرضا پیرزاد امیر رحیمی

although micronutrients effect on growth and yield of different plants has been intensively investigated, but there is limited information on its effect on grain yield and seed oil content of pot marigold) calendula officinalis l.). in order to investigate the effects of micronutrients (fe, zn and mn) spraying on yield and yield components and seed oil of pot marigold, a field experiment was co...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید