Potential Of Solute
Mostrando 13-24 de 107 artigos, teses e dissertações.
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13. Teoria de cojuntos fuzzi no estudo da dinamica da agua e de solutos no solo / Fuzzi sets theory applied in the soil s water and solutes dynamics
Conhecer a dinâmica da água e de solutos no solo é condição imprescindível para a produção agrícola sustentável. O sucesso destes modelos numéricos em descrever a dinâmica da água e de solutos no solo está intimamente ligado à precisão com que os parâmetros físicohídricos, envolvidos nestes processos são determinados. De uma maneira geral
Publicado em: 2007
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14. AvaliaÃÃo do crescimento e de mecanismos de tolerÃncia à salinidade em plantas de sorgo forrageiro irrigados com Ãguas salinas / Evaluation of the grown and mechanisms of tolerance to the salinity in plants of forrage sorghum (Sorghum bicolor (L) Moench), irrigated with saline waters.
This work studied the tolerance of two genotypes of forrage sorghum (Sorghum bicolor (L) Moench), one salt sensitive (CSF 18) and another salt tolerant (CSF 20). Selected seeds were germinated in vases containing 12 Kg of sandy soil under greenhouse conditions. Ten days after seeding, plants were irrigated with different salt concentration water. For prepair
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/08/2005
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15. Non-newtonian carriers in a batch electrophoretic cell with joule heating: hydrodynamic considerations and mathematical aspects
The Joule heating effects on hydrodynamics are examined for the case of a non-Newtonian fluid flowing in a batch electrophoretic cell. The potential benefits of using non-Newtonian fluids in electrophoretic separations could lead, for example, to an increase in the efficiency of separations and to a better scale-up of the operation for the processing of larg
Brazilian Journal of Chemical Engineering. Publicado em: 2001-03
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16. Estudos teoricos de solvatação ionica usando simulação computacional de Monte Carlo
The Monte Carlo method with Metropolis algorithm was used to study chloride solvation in water, methanol and water-methanol mixtures. The calculations were performed in the NVT and NpT ensembles at 298 K and 1 atm. These systems were modeled by cubic box containing one ion plus 400 or 200 solvents molecules with periodic boundary conditions. Lennard-Jones an
Publicado em: 1995
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17. The Effect of Sodium Chloride on Solute Potential and Proline Accumulation in Soybean Leaves 1
Two cultivars of soybean (Glycine max [L.] Merr.) were grown in solution with up to 100 millimolar NaCl. Leaf solute potential was −1.1 to −1.2 megapascals in both cultivars without NaCl. At 100 millimolar NaCl leaf solute potential was −3.1 to −3.5 megapascals in Bragg and −1.7 megapascals in Ransom. The decrease in solute potential was essentiall
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18. Diurnal Growth Trends, Water Potential, and Osmotic Adjustment of Maize and Sorghum Leaves in the Field
The daily cycle of leaf elongation rate, water potential, and solute potential of maize and sorghum, as well as temperature, were monitored in the field. Major climatic features were high radiation and a minimum air temperature of about 12 C. Leaf elongation of both crops was slowest at night, presumably because of low temperature. Peak elongation rates were
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19. Effects of Water and Turgor Potential on Malate Efflux from Leaf Slices of Kalanchoë daigremontiana1
Malate efflux from leaf cells of the Crassulacean acid metabolism plant Kalanchoë daigremontiana Hamet et Perrier was studied using leaf slices submerged in experimental solutions. Leaves were harvested at the end of the dark phase and therefore contained high malate levels. Water potentials of solutions were varied between 0 and −5 bar using mannitol (a
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20. Origin of Growth-Induced Water Potential 1: Solute Concentration Is Low in Apoplast of Enlarging Tissues
We developed a new method to measure the solute concentration in the apoplast of stem tissue involving pressurizing the roots of intact seedlings (Glycine max [L.] Merr. or Pisum sativum L.), collecting a small amount of exudate from the surface of the stem under saturating humidities, and determining the osmotic potential of the solution with a micro-osmome
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21. Effect of Apoplastic Solutes on Water Potential in Elongating Sugarcane Leaves 1
Solute concentration in the apoplast of growing sugarcane (Saccharum spp. hybrid) leaves was measured using one direct and several indirect methods. The osmotic potential of apoplast solution collected directly by centrifugation of noninfiltrated tissue segments ranged from −0.25 megapascal in mature tissue to −0.35 megapascal in tissue just outside the
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22. LWR1 and LWR2 Are Required for Osmoregulation and Osmotic Adjustment in Arabidopsis1
With the goal of identifying molecular components of the low-water-potential response, we have carried out a two-part selection and screening strategy to identify new Arabidopsis mutants. Using a system of polyethylene glycol-infused agar plates to impose a constant low-water-potential stress, putative mutants impaired in low-water-potential induction of the
American Society of Plant Biologists.
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23. Investigation of Plant Water Relations with Divided Root Systems of Soybean 1
Soybean (Glycine max) was grown with root systems divided between adjacent cartons containing nutrient solution or soil. By adding polyethylene glycol (Carbowax 6000) to reduce solute potential or withholding water to reduce soil matric potential until water absorption from that side stopped, the root xylem water potential could be ascertained. Carbowax appe
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24. The Effect of Reduced Water Potential on Soybean Mitochondria 1
The respiration of excised hypocotyls and of isolated hypocotyl mitochondria from soybean [Glycine max (L.) Merr., var. Wayne] was determined in various concentrations of sucrose and potassium chloride. Hypocotyl oxygen uptake declined with increasing solute concentration; no specific effects of either solute were apparent. Mitochondrial state III respiratio