نتایج جستجو برای: water relation parameters including relative water content

تعداد نتایج: 2796279  

Journal: :آب و خاک 0
بهزاد قنبریان علویجه عبدالمجید لیاقت

abstract saturated water content is one of the important parameters which its measurement is necessary in estimation of soil water retention and unsaturated hydraulic conductivity curves. in several researches, saturated water content is assumed to be equal to soil total porosity. in some others, its value is estimated by pedotransfer functions using readily available parameters, such as bulk d...

In this work, polyvinylchloride (PVC) membrane prepared via casting solution technique and phase inversion method. N, N dimethylacetamide (DMAC) was used as primary solvent and Tetrahydrofuran (THF) was used as a co-solvent. The effects of parameters such as membrane thickness, evaporation time of casting film before immersion precipitation and addition of polyethylenglchol (PEG) on PVC membran...

eesmaielpour, Behrooz, Fatemi, Hamideh, Rahbari, Akram,

Silicon is one of the beneficial elements for plants, recent studies have shown that this element plays a very important role in plant resistance to environmental stresses, including heavy metal stress. To evaluate the effect of silicon foliar spraying on increasing tolerance to lead contamination in dill (Anethum graveolens L) a factorial experiment based on completely randomized design with f...

عسکری, مهری, امینی, فریبا, قنبر زاده, زهره ,

Fariba Amini*, Zohreh Ganbarzadeh and Mehri Askari * Department of Biology, Faculty of Sciences, Arak University, Arak 38156-8-8349, Iran (Received: 10 September 2012 Accepted: 4 May 2013) Abstract: Salinity is an environmental stress and is the main limiting factor in the efficiency of agriculture products in the world. Salsola arbuscula is a halophyte plant and resistant to ...

ژورنال: علوم آب و خاک 2018

In this study, the values of moisture and soil temperature were estimated at different depths and times under unsteady conditions by solving the Richards’ equation in an explicit finite difference method provided in Visual Studio C#. For the estimation of soil hydraulic parameters, including av and nv (coefficients of van Genuchten’s equation) and Ks (saturated hydraulic conductivit...

2014
Pengsen Sun Said Wahbi Tsonko Tsonev Matthew Haworth Shirong Liu Mauro Centritto

Diffusional limitations to photosynthesis, relative water content (RWC), pigment concentrations and their association with reflectance indices were studied in olive (Olea europaea) saplings subjected to water-stress and re-watering. RWC decreased sharply as drought progressed. Following rewatering, RWC gradually increased to pre-stress values. Photosynthesis (A), stomatal conductance (gs), meso...

2004
G. N. Flerchinger S. P. Hardegree

A major contributor to degradation on rangelands in the western United States is the expansion of undesirable annual weeds following wildfire or other disturbance. The Simultaneous Heat and Water (SHAW) model was applied to three soil types (loamy sand, sandy loam, and silt loam) to simulate near-surface soil temperature and water for predicting potential seed germination in post-wildfire reveg...

2015
Rahimeh Mehdizadeh

MEHDIZADEH, R. Relationship between body water compartments and indexes of adiposity in sedentary young adult girls. Brazilian Journal of Biomotricity. v. 6, n. 2, p. 84-92, 2012. Changes in Total body water (TBW) that occur with variation of body weight (BW), indicating a relation between body water content and adipose tissue mass, because BW changes directly relate to changes in FM content in...

بلوچی, حمید رضا, سعیدی ابواسحقی, روح الله, موحدی دهنوی, محسن, یدوی , علیرضا ,

One of the negative effects of water stress on growth and crop production is micronutrient uptake reduction by plant root. Therefore, to evaluate the effect of foliar application of Fe and Zn on some physiological and morphological characteristics of red bean (Akhtar cultivar) under drought stress this experiment was designed as a split plot in a completely randomized block design with three re...

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