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Dynamic mathematical model for transport processes in plants

Creator:: Sangkhasila, Kumut
Resource Type:: Dissertation
Full Text:: Abstract approved: Larry Boersma A mathematical model describing the xylem and phloem transport

Diffusion and surface reaction processes of absorption on surfaces of soil particles in unsaturated soils

Creator:: Yingjajaval, Suntaree
Abstract:: At present the adsorption kinetic of ions by soil particles is considered to be a surface reaction. When the transport of solutes in soils is described using the one-dimensional flow equation, it becomes a serious problem that lateral diffusion of ions from the bulk solution towards the soil surfaces is...
Resource Type:: Dissertation
Full Text:: -Lgig soil) is the amount of ions in the liquid phase and is the nondimensional representation of S

Temperature and water potential effects on physiological functions of sudangrass (Sorghum vulgare var. Piper)

Creator:: Young, Richard Su-Shung
Abstract:: Temperature and water potential effects on the growth, transpiration, total nonstructural carbohydrate (TNC) content, and nutrient uptake of sudangrass (Sorghum vulgare var. piper) were investigated in laboratory experiments. The effect of nitrogen supply on the growth and nutrient uptake at constant soil water potential was also investigated in this study....
Resource Type:: Dissertation
Full Text:: temperature independent of RH differences. An equilibrium content of N, P, K, Ca, Mg, S, Mn and Zn in the

Diffusion of oxygen and carbon dioxide through soil with temperature and water content effects on sink/source strength

Creator:: Ying, Ouyang
Abstract:: Gaseous diffusion equations which describe the diffusion of oxygen and carbon dioxide through soil have been studied by several investigators. However, these efforts seldom considered gaseous diffusion through soil together with the effects of soil environmental factors such as soil temperature and soil water content on sink or source strength....
Resource Type:: Masters Thesis
Full Text:: Strength 7 Redacted for Privacy Abstract approved: / Larry Boersma Gaseous diffusion equations which

A continuum model of plant root growth

Creator:: Feng, Yongsheng
Abstract:: The continuum theory provides a framework in which the growth of a plant root as a dynamic process involving interactions among transport of water and solute, cell division, and the subsequent cell elongation can be described. A plant root is modeled as a one-dimensional, multi-phase, mathematical continuum. The network of...
Resource Type:: Dissertation
Full Text:: ACKNOWLEDGEMENTS I, would like to express my deep appreciation to Dr. Larry Boersma for his support

Ozone inhibition of transpiration and photosynthesis of two soybean (Glycine max. [L.] Merr.) cultivars

Creator:: Yingjajaval, Suntaree
Resource Type:: Masters Thesis
Full Text:: recovery capability. They also were less sensitive to changes in r s , rm and CO2 com- pensation point

Soil water potential and soil temperature effects on growth and nutrient uptake of sudangrass seedlings (Sorghum vulgare var. Piper)

Creator:: Al-Omran, Abdrubalrasol Mosa
Resource Type:: Dissertation
Full Text:: Dr. Larry oersma Effects of soil water potential ( ) and soil temperature *soil (Tsoil) on the

Physiological and yield responses of snap beans (Phaseolus vulgaris) to water availability

Creator:: Biuk, Abdulmajid Ahmed
Resource Type:: Dissertation
Full Text:: an average value of solute potential at full turgor (T ) of s,100 -5.39 + 0.34 and -6.72 ± 1.33 bars

Continuum mechanics methods applied to root growth and the penetration of soil by roots

Creator:: McCoy, Edward L.
Abstract:: The principles of continuum mechanics provide a consistent framework for the derivation of mathematical statements describing transport of water and solute, and growth in plant tissue. These derivations are based upon the explicit consideration of the tissue as a mathematical continuum composed of a cell wall matrix, water, and solute...
Resource Type:: Dissertation
Full Text:: Growth and the Penetration of Soil by Roots Abstract approved: Redacted for privacy Larry Boersma The

Physiological effects of water stress on young corn plants

Creator:: Barlow, Edward William Ross
Abstract:: Laboratory experiments were used to investigate the mechanism of plant response to water stress by determining the sensitivity of leaf elongation, photosynthesis and transpiration in young corn plants to a decrease in leaf water potential. In initial experiments, 9 day old corn plants were grown at soil water potentials of...
Resource Type:: Dissertation
Full Text:: and guidance so generously given by Dr. Larry Boersma throughout my graduate studies at Oregon State

ScholarsArchive@OSU

Dynamic mathematical model for transport processes in plants

Diffusion and surface reaction processes of absorption on surfaces of soil particles in unsaturated soils

Temperature and water potential effects on physiological functions of sudangrass (Sorghum vulgare var. Piper)

Diffusion of oxygen and carbon dioxide through soil with temperature and water content effects on sink/source strength

A continuum model of plant root growth

Ozone inhibition of transpiration and photosynthesis of two soybean (Glycine max. [L.] Merr.) cultivars

Soil water potential and soil temperature effects on growth and nutrient uptake of sudangrass seedlings (Sorghum vulgare var. Piper)

Physiological and yield responses of snap beans (Phaseolus vulgaris) to water availability

Continuum mechanics methods applied to root growth and the penetration of soil by roots

Physiological effects of water stress on young corn plants

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