The need for improved crop water use efficiency calls for flexible modeling platforms to implement new ideas in plant root uptake and its regulation mechanisms. This paper documents the details of modifying a soil infiltration and redistribution model to include (a) dynamic root growth, (b) non-uniform root distribution and water uptake, (c) the effect of water stress on plant water uptake, and...

Steel slag CO2 sequestration helps mitigate global warming and decrease the stockpile of steel (SS). Through orthogonal design tests single-factor tests, this paper evaluated effects water/solid mass ratio (w/s), gypsum (G/SS), molding pressure, curing duration on uniaxial compressive strength (UCS) uptake compacts. The results indicated that high w/s enhanced both capture ability. proper addit...

Wheat growth in response to soil water deficit play an important role in yield stability. A field experiment was conducted for winter wheat (Triticum aestivum L.) during the period of 2002–2005 to evaluate the effects of limited irrigation on winter wheat growth. 80%, 70%, 60%, 50% and 40% of field capacity was applied at different stages of crop growth. Photosynthetic characteristics of winter...

Title of thesis: ACCLIMATION OF MARINE MACROPHYTES (SACCHARINA LATISSIMA AND ZOSTERA MARINA) TO WATER FLOW Terry Jordan, Master of Science, 2008 Thesis directed by: Dr. Evamaria Koch I examined the physiological response of two marine macrophytes, the brown alga Saccharina latissima and the angiosperm Zostera marina, to water flow in nature and in controlled experiments. Limitation of photosynt...

succinate, while ?Ig+, AMP, and DPN+ were required for the oxidation of citrate. 2. Pyruvate-2-C14 and acetate-2-C14 were metabolized by the mitochondria. 3. The absorption of water by the endosperm tissue was accompanied by the activation of the Krebs cycle enzyme system. 4. The capacity of mitochondrial particles to oxidize succinate decreased as the embryos germinated; their ability to oxidi...

fereidon nourgholipour1*, mohammad passandideh1 and emam gholi nourgholipour 2   [1] - soil and water research institute, tehran, iran   2- university of tehran, college of abureihan, tehran, iran         received: 21 december 2009 accepted: 25 february 201 1     * corresponding author: e-mail: [email protected]       abstract     expansion and economical importance of yield reduction due to iro...

Quantitative study of root morphological characteristics of plants is helpful for understanding the relationships between their morphology and function. However, few studies and little detailed and accurate information of root characteristics were reported in fine-rooted plants like rice (Oryza sativa L.). The aims of this study were to quantitatively classify fine lateral roots (FLRs), thick l...

The effects of global climate change will regionally be very different, mainly causing considerable changes in temperature and water availability. For Central Europe, for example, increased temperatures are predicted, which will cause increased frequencies and durations of summer drought events. On the other hand, the predicted changes in precipitation patterns will lead to enhanced rainfall du...

background: phytoremediation is one of the methods used to remove contaminants and while being simple, cheap and efficient, does not cause environmental deterioration. the aims of this study were phytoremediation of soil contaminated by cd, the simultaneous survey of the influence of different electrical conductivity values, and comparison of two soil amendments including sludge and municipal c...

A transient one-dimensional model of the vertical movement of water and salt in the mangrove root zone is investigated. This is an extension of a previous steady state model which assumed that the ability of the mangrove roots to take up water is uniformly distributed throughout the soil and that the root water uptake is reduced if there is nonzero salt concentration around the roots. We show h...