نتایج جستجو برای: water content

تعداد نتایج: 925466  

Journal: :علوم گیاهان زراعی ایران 0
مهدی سیدان جاسبی دانشجوی کارشناسی ارشد گروه زراعت و اصلاح نباتات، دانشکدۀ کشاورزی، دانشگاه صنعتی اصفهان پرویز احسان زاده دانشیار گروه زراعت و اصلاح نباتات، دانشکدۀ کشاورزی، دانشگاه صنعتی اصفهان

investigation of physiological responses to water deficit in sesame (sesamum indicum l.) genotypes can help to identify effective mechanisms of plant resistance to stress. therefore, chlorophyll content, proline, soluble carbohydrates, net photosynthesis rate, stomatal conductance, maximum quantum efficiency (fv/fm), plant height and shoot dry weight in a complete block factorial pot experiment...

2010
Petra Schmitter

For the first few days after heavy rain or irrigations, water drains from the soil profile until its water content approaches a relatively stable value called the drained upper limit or field capacity. When plants have extracted all of the water available to them, the root zone water content approaches a lower limit of available water, or permanent wilting water content. The water held by the s...

Journal: :international journal of preventive medicine 0
maryam moeini mehdi nematbakhsh mohammad fazilati ardeshir talebi ali asghar pilehvarian fariba azarkish

background: acute kidney injury (aki) has been recognized as one of the most complex clinical complications in modern medicine, and ischemia/reperfusion (i/r) injury is well-known as a main reason of aki. in addition, aki leads to important systemic consequences such as acute lung injury. this study was designed to investigate the role of erythropoietin (epo) on kidney function makers and tissu...

Journal: :international journal of geo science and environmental planning 0
seyed amirodin sadrnejhad prof, civil engineering dept., k.n.toosi university of technology, teheran, iran mir sina mousavi aghdam msc,khak energy pars., geotechnical consultant co, teheran, iran mahsa memarianfard phd civil engineering dept., k.n.toosi university of technology, teheran, iran zahra sharif tehrani msc student.faculty of art and architecture. kashan university, kashan, iran

an investigation on the thermal performance of the soil as geothermal heat energy storage medium has been conducted. the thermal characteristics of the soil storage and the heat transfer from a heat exchanger in the soil, surrounding and bottom surface will be discussed. this investigation forms a contribution to a project to realize such storage to be charged from a solar heating system. this ...

Journal: :ecopersia 2011
berdimohammad agherkakli akbar najafi seyed hamidreza sadeghi

ground skidding on skid trails affects the physical properties of soil. the objective of this study was to evaluate changes in soil physical properties on skid trails formed due to traffic of metal-tracked skidders with regard to soil bulk density, total porosity, water content and penetration resistance. the studies were implemented on two levels of slope – 20% (sc2) – and three levels of traf...

Journal: :تحقیقات مهندسی کشاورزی 0
آرش محجوبی مدیر دفتر فنی و مهندسی شبکه های آبیاری و زهکشی سازمان آب و برق خوزستان عدنان صادقی لاری استادیار گروه مهندسی آب دانشکده کشاورزی و منابع طبیعی دانشگاه هرمزگان

sugarcane, which has high water requirements, is grown in khuzestan province (iran). climate and optimizing the use of water is very important to sustainable cultivation of sugarcane. studies of water requirements for sugar cane in khuzestan show that in parts of sugarcane agro-industry, the water applied is more than the actual water requirement of the plant. the present study was conducted to...

Journal: :pollution 2015
k. swarnalatha bindhu radhakrishnan

phytoremediation is an eco-friendly method for removal of pollutants, which can be relied upon as a sustainable technology, if implemented under optimum conditions of plant growth. the effectiveness of water hyacinth, a topical weed, for the removal of zinc (zn) and chromium (cr) ions from aqueous solutions has been presented in this article. the potential of this plant in removing metals by ph...

1999
T.W.J. Bauters J.-Y. Parlange

The initial soil water content affects wetting front instability. A series of experiments were conducted where water was infiltrated into a 20/30 sand with initial volumetric water contents of 0, 0.005, 0.01, 0.015, 0.02, 0.03, 0.04 and 0.047 cm/cm. Both water content and matric potential were measured. Water content was measured with Synchrotron X-rays at the Cornell High Energy Synchrotron So...

Journal: :global journal of environmental science and management 2015
r.n. lohe b. tyagi v. singh p. tyagi d.r. khanna

although water and land pollution are very dangerous, air pollution has its own peculiarities due to its transboundary dispersion of pollutants over the entire world. in any well planned urban set up, industrial pollution takes a back seat and vehicular emissions take precedence as the major cause of urban air pollution. in the present study, air pollution tolerance index was calculated for var...

In order to evaluate the tuber fresh weight and some physiological attributes of Agria potato cultivar in response to water deficit stress and mycorrhiza inoculation, a field trial was conducted as a split plot scheme based on randomized complete block design with three replications at the research site of Islamic Azad University, Tabriz Branch in 2012. Four water levels including: irrigation a...

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