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Plant and soil resistance to water flow in faba bean (Vicia faba L. major Harz.)

An experiment was conducted to determine soil and plant resistance to water flow in faba bean under field conditions during the growing season. During each sampling period transpiration flux and leaf water potential measured hourly were used with daily measurements of root and soil water potential t... Full description

Journal Title: Plant and soil 1999, Vol.210 (2), p.219-231
Main Author: Ruggiero, C. (Naples Federico II Univ., Portici (Italy). Dept. of Agricultural Engineering and Agronomy)
Other Authors: Pascale, S. De , Fagnano, M
Format: Electronic Article Electronic Article
Language: English
Subjects:
Publisher: Dordrecht: Kluwer Academic Publishers
ID: ISSN: 0032-079X
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recordid: cdi_proquest_miscellaneous_17374379
title: Plant and soil resistance to water flow in faba bean (Vicia faba L. major Harz.)
format: Article
creator:
  • Ruggiero, C. (Naples Federico II Univ., Portici (Italy). Dept. of Agricultural Engineering and Agronomy)
  • Pascale, S. De
  • Fagnano, M
subjects:
  • Agricultural soils
  • Agronomy. Soil science and plant productions
  • Biological and medical sciences
  • Economic plant physiology
  • Fundamental and applied biological sciences. Psychology
  • MOUVEMENT DE L'EAU DANS LE SOL
  • MOVIMIENTO DEL AGUA EN EL SUELO
  • NUTRIENT TRANSPORT
  • Plant growth
  • Plant immunity
  • Plant physiology and development
  • Plant resistance
  • Plant roots
  • Plants
  • POTENTIEL HYDRIQUE
  • Soil hydraulic properties
  • Soil water
  • SOIL WATER MOVEMENT
  • TENSION DE ABSORCION
  • TRANSPIRACION
  • TRANSPIRATION
  • TRANSPORT DES SUBSTANCES NUTRITIVES
  • TRANSPORTE DE NUTRIENTES
  • VICIA FABA
  • Water and solutes. Absorption, translocation and permeability
  • Water flow
  • WATER POTENTIAL
  • Water relations, transpiration, stomata
  • Water uptake
ispartof: Plant and soil, 1999, Vol.210 (2), p.219-231
description: An experiment was conducted to determine soil and plant resistance to water flow in faba bean under field conditions during the growing season. During each sampling period transpiration flux and leaf water potential measured hourly were used with daily measurements of root and soil water potential to calculate total resistance using Ohm's law analogy. Plant growth, root density and soil water content distributions with depth were measured. Leaf area and root length per plant reached their maximum value during flowering and pod setting (0.31 m² and 2200 m, respectively), then decreasing until the end of the growing period. Root distribution decreased with depth ranging, on average, between 34.2% (in the 0-0.25 m soil layer) and 18.1% (in the 0.75-1.0 m soil layer). Mean root diameter was 0.6 mm but most of the roots were less than 0.7 mm in diameter. Changes in plant and soil water potentials reflected plant growth characteristics and climatic patterns. The overall relationship between the difference in water potential between soil and leaf and transpiration was linear, with the slope equal to average plant resistance (0.0165 MPa/(cm³ m⁻¹ h⁻¹ 10⁻³). Different regression parameters were obtained for the various measurement days. The water potential difference was inversely related to transpiration at high leaf stomatal resistance and at high values of VPD. Total resistance decreased with transpiration flux in a linear relationship (r=-0.68). Different slope values were obtained for the different measurement days. Estimated soil resistance was much lower than the observed total resistance to water flow. The change from vegetative growth to pod filling was accompanied by an increase in plant resistance. The experimental results support previous findings that resistance to water flow through plants is not constant but is influenced by plant age, growth stage and environmental conditions. A more complex model than Ohm's law analogy may be necessary for describing the dynamic flow system under field conditions.
language: eng
source:
identifier: ISSN: 0032-079X
fulltext: no_fulltext
issn:
  • 0032-079X
  • 1573-5036
url: Link


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titlePlant and soil resistance to water flow in faba bean (Vicia faba L. major Harz.)
creatorRuggiero, C. (Naples Federico II Univ., Portici (Italy). Dept. of Agricultural Engineering and Agronomy) ; Pascale, S. De ; Fagnano, M
creatorcontribRuggiero, C. (Naples Federico II Univ., Portici (Italy). Dept. of Agricultural Engineering and Agronomy) ; Pascale, S. De ; Fagnano, M
descriptionAn experiment was conducted to determine soil and plant resistance to water flow in faba bean under field conditions during the growing season. During each sampling period transpiration flux and leaf water potential measured hourly were used with daily measurements of root and soil water potential to calculate total resistance using Ohm's law analogy. Plant growth, root density and soil water content distributions with depth were measured. Leaf area and root length per plant reached their maximum value during flowering and pod setting (0.31 m² and 2200 m, respectively), then decreasing until the end of the growing period. Root distribution decreased with depth ranging, on average, between 34.2% (in the 0-0.25 m soil layer) and 18.1% (in the 0.75-1.0 m soil layer). Mean root diameter was 0.6 mm but most of the roots were less than 0.7 mm in diameter. Changes in plant and soil water potentials reflected plant growth characteristics and climatic patterns. The overall relationship between the difference in water potential between soil and leaf and transpiration was linear, with the slope equal to average plant resistance (0.0165 MPa/(cm³ m⁻¹ h⁻¹ 10⁻³). Different regression parameters were obtained for the various measurement days. The water potential difference was inversely related to transpiration at high leaf stomatal resistance and at high values of VPD. Total resistance decreased with transpiration flux in a linear relationship (r=-0.68). Different slope values were obtained for the different measurement days. Estimated soil resistance was much lower than the observed total resistance to water flow. The change from vegetative growth to pod filling was accompanied by an increase in plant resistance. The experimental results support previous findings that resistance to water flow through plants is not constant but is influenced by plant age, growth stage and environmental conditions. A more complex model than Ohm's law analogy may be necessary for describing the dynamic flow system under field conditions.
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subjectAgricultural soils ; Agronomy. Soil science and plant productions ; Biological and medical sciences ; Economic plant physiology ; Fundamental and applied biological sciences. Psychology ; MOUVEMENT DE L'EAU DANS LE SOL ; MOVIMIENTO DEL AGUA EN EL SUELO ; NUTRIENT TRANSPORT ; Plant growth ; Plant immunity ; Plant physiology and development ; Plant resistance ; Plant roots ; Plants ; POTENTIEL HYDRIQUE ; Soil hydraulic properties ; Soil water ; SOIL WATER MOVEMENT ; TENSION DE ABSORCION ; TRANSPIRACION ; TRANSPIRATION ; TRANSPORT DES SUBSTANCES NUTRITIVES ; TRANSPORTE DE NUTRIENTES ; VICIA FABA ; Water and solutes. Absorption, translocation and permeability ; Water flow ; WATER POTENTIAL ; Water relations, transpiration, stomata ; Water uptake
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descriptionAn experiment was conducted to determine soil and plant resistance to water flow in faba bean under field conditions during the growing season. During each sampling period transpiration flux and leaf water potential measured hourly were used with daily measurements of root and soil water potential to calculate total resistance using Ohm's law analogy. Plant growth, root density and soil water content distributions with depth were measured. Leaf area and root length per plant reached their maximum value during flowering and pod setting (0.31 m² and 2200 m, respectively), then decreasing until the end of the growing period. Root distribution decreased with depth ranging, on average, between 34.2% (in the 0-0.25 m soil layer) and 18.1% (in the 0.75-1.0 m soil layer). Mean root diameter was 0.6 mm but most of the roots were less than 0.7 mm in diameter. Changes in plant and soil water potentials reflected plant growth characteristics and climatic patterns. The overall relationship between the difference in water potential between soil and leaf and transpiration was linear, with the slope equal to average plant resistance (0.0165 MPa/(cm³ m⁻¹ h⁻¹ 10⁻³). Different regression parameters were obtained for the various measurement days. The water potential difference was inversely related to transpiration at high leaf stomatal resistance and at high values of VPD. Total resistance decreased with transpiration flux in a linear relationship (r=-0.68). Different slope values were obtained for the different measurement days. Estimated soil resistance was much lower than the observed total resistance to water flow. The change from vegetative growth to pod filling was accompanied by an increase in plant resistance. The experimental results support previous findings that resistance to water flow through plants is not constant but is influenced by plant age, growth stage and environmental conditions. A more complex model than Ohm's law analogy may be necessary for describing the dynamic flow system under field conditions.
subject
0Agricultural soils
1Agronomy. Soil science and plant productions
2Biological and medical sciences
3Economic plant physiology
4Fundamental and applied biological sciences. Psychology
5MOUVEMENT DE L'EAU DANS LE SOL
6MOVIMIENTO DEL AGUA EN EL SUELO
7NUTRIENT TRANSPORT
8Plant growth
9Plant immunity
10Plant physiology and development
11Plant resistance
12Plant roots
13Plants
14POTENTIEL HYDRIQUE
15Soil hydraulic properties
16Soil water
17SOIL WATER MOVEMENT
18TENSION DE ABSORCION
19TRANSPIRACION
20TRANSPIRATION
21TRANSPORT DES SUBSTANCES NUTRITIVES
22TRANSPORTE DE NUTRIENTES
23VICIA FABA
24Water and solutes. Absorption, translocation and permeability
25Water flow
26WATER POTENTIAL
27Water relations, transpiration, stomata
28Water uptake
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authorRuggiero, C. (Naples Federico II Univ., Portici (Italy). Dept. of Agricultural Engineering and Agronomy) ; Pascale, S. De ; Fagnano, M
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0Agricultural soils
1Agronomy. Soil science and plant productions
2Biological and medical sciences
3Economic plant physiology
4Fundamental and applied biological sciences. Psychology
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6MOVIMIENTO DEL AGUA EN EL SUELO
7NUTRIENT TRANSPORT
8Plant growth
9Plant immunity
10Plant physiology and development
11Plant resistance
12Plant roots
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14POTENTIEL HYDRIQUE
15Soil hydraulic properties
16Soil water
17SOIL WATER MOVEMENT
18TENSION DE ABSORCION
19TRANSPIRACION
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21TRANSPORT DES SUBSTANCES NUTRITIVES
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25Water flow
26WATER POTENTIAL
27Water relations, transpiration, stomata
28Water uptake
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abstractAn experiment was conducted to determine soil and plant resistance to water flow in faba bean under field conditions during the growing season. During each sampling period transpiration flux and leaf water potential measured hourly were used with daily measurements of root and soil water potential to calculate total resistance using Ohm's law analogy. Plant growth, root density and soil water content distributions with depth were measured. Leaf area and root length per plant reached their maximum value during flowering and pod setting (0.31 m² and 2200 m, respectively), then decreasing until the end of the growing period. Root distribution decreased with depth ranging, on average, between 34.2% (in the 0-0.25 m soil layer) and 18.1% (in the 0.75-1.0 m soil layer). Mean root diameter was 0.6 mm but most of the roots were less than 0.7 mm in diameter. Changes in plant and soil water potentials reflected plant growth characteristics and climatic patterns. The overall relationship between the difference in water potential between soil and leaf and transpiration was linear, with the slope equal to average plant resistance (0.0165 MPa/(cm³ m⁻¹ h⁻¹ 10⁻³). Different regression parameters were obtained for the various measurement days. The water potential difference was inversely related to transpiration at high leaf stomatal resistance and at high values of VPD. Total resistance decreased with transpiration flux in a linear relationship (r=-0.68). Different slope values were obtained for the different measurement days. Estimated soil resistance was much lower than the observed total resistance to water flow. The change from vegetative growth to pod filling was accompanied by an increase in plant resistance. The experimental results support previous findings that resistance to water flow through plants is not constant but is influenced by plant age, growth stage and environmental conditions. A more complex model than Ohm's law analogy may be necessary for describing the dynamic flow system under field conditions.
copDordrecht
pubKluwer Academic Publishers
doi10.1023/A:1004690101953