Search claims · PlantClaims

Observationobservedoriginal resultmeasured

Claim · model-written summary

Effective moisture diffusivities of sliced carrots were determined from the drying data.

Taxon: carrotsDaucus carotae1
Outcome: Effective moisture diffusivitiese3

Verbatim

e1
“Desorption isotherms of sliced carrots have been measured”
✓ located verbatim in the source · abstract, characters 0–57

e3
“Effective moisture diffusivities were determined using the drying data”
✓ located verbatim in the source · abstract, characters 608–678

Title

Desorption isotherms and drying characteristics of carrot using tray and heat pump-assisted dehumidified drying

Singhanat Phoungchandang; Jeeranan Wongwatanyoo Asia-Pacific Journal of Science and Technology 2010

Other claims from this paper (5)

Method / resource The Modified Chung-Pfost model gave the best fit to the desorption function RHe = f(Xe,T) among four moisture sorption isotherm models for carrot.
Method / resource The Modified Henderson model gave the best fit to the sorption function Xe = f(RHe,T) among four moisture sorption isotherm models for carrot.
Association The drying constant of carrot was related to air temperature through an Arrhenius model.
Intervention effect Heat pump-dehumidified drying reduced drying times of sliced carrots.
Intervention effect Blanching reduced drying times of sliced carrots.

Method / resourceobservedoriginal resultpositivebasis n/a

Claim · model-written summary

A reformulated gas-exchange equation estimates evaporating-surface CO2 pressure for gas mixtures with known CO2 and water diffusivities.

Outcome: applicable to any gas mixturee0
Qualifier: diffusivities of CO(2) and H(2)O are knowne0

Not reportedComparatorValue

Verbatim

e0
“the new equation is applicable to any gas mixture for which the diffusivities of CO(2) and H(2)O are known.”
✓ located verbatim in the source · abstract, characters 972–1079

Title

Intercellular Diffusion Limits to CO₂ Uptake in Leaves

David F. Parkhurst; Keith A. Mott PLANT PHYSIOLOGY 1990. doi:10.1104/pp.94.3.1024

Other claims from this paper (6)

Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The temperature dependence of the tracer diffusivities should be accounted for in the model.

Taxon: Lupinus angustifolius and Eucalyptus globulusLupinus angustifoliusEucalyptus globuluse2
Outcome: temperature dependence of the tracer diffusivitiese3

Verbatim

e2
“We compared the advection-diffusion model to previously published data sets for Lupinus angustifolius and Eucalyptus globulus”
✓ located verbatim in the source · abstract, characters 460–585

e3
“It became clear from our analysis that night-time stomatal conductance should be measured in the future and that the temperature dependence of the tracer diffusivities should be accounted for”
✓ located verbatim in the source · abstract, characters 932–1123

Title

Modelling advection and diffusion of water isotopologues in leaves

MATTHIAS CUNTZ; JÉRÔME OGÉE; GRAHAM D. FARQUHAR; et al. Plant Cell & Environment 2007. doi:10.1111/j.1365-3040.2007.01676.x

Other claims from this paper (8)

Method / resource The model agreed very well with observed bulk mesophyll water over the whole diel cycle.
Method / resource The model compared well with leaf enrichment at the evaporative sites during the day.
Method / resource The model showed some deviations at night for Eucalyptus globulus.
Method / resource Varying mesophyll water volume did not seem critical for a good prediction of leaf water enrichment in the data sets.
Method / resource Observations of single diurnal cycles do not seem to constrain the effective length of water path tortuosity in the mesophyll.
Recommendation Night-time stomatal conductance should be measured in future studies.
Method / resource Simpler models of leaf water enrichment were suitable for applications of leaf water isotopes once weighted with the appropriate gas exchange flux.
Method / resource An unsuitable leaf water enrichment model could lead to large biases when cumulated over only 1 day.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Optical sensors produced informative O2 and CO2 partial pressure versus time profiles in pear tissue.

Taxon: pearPyrus communist0
Outcome: O 2 and CO 2 partial pressure versus time profilese1
Qualifier: good informativee1

Verbatim

t0
“Simultaneous measurement of oxygen and carbon dioxide diffusivities in pear fruit tissue using optical sensors”
✓ located verbatim in the source · title, characters 0–110

e1
“The optical sensors produced good informative O 2 and CO 2 partial pressure versus time profiles”
✓ located verbatim in the source · abstract, characters 678–774

Title

Simultaneous measurement of oxygen and carbon dioxide diffusivities in pear fruit tissue using optical sensors

Quang Tri Ho; Bert E Verlinden; Pieter Verboven; et al. Journal of the Science of Food and Agriculture 2007. doi:10.1002/jsfa.2902

Other claims from this paper (5)

Mechanismhypothesisoriginal resultbasis n/a

Claim · model-written summary

High ion concentrations in vessels embedded in tissues with non-zero cell-wall reflection coefficients would develop osmotic pressures.

Taxon: HelianthusHelianthuse2
Outcome: osmotic pressures would develop in theme3
Qualifier: non-zero reflection coefficients (low diffusivities)e3

Verbatim

e2
“Using X-ray microanalysis of frozen-planed Helianthus leaf tissues”
✓ located verbatim in the source · abstract, characters 228–294

e3
“When high concentrations of ions are present in vessels that are embedded in tissues whose cell walls have non-zero reflection coefficients (low diffusivities), osmotic pressures would develop in them”
✓ located verbatim in the source · abstract, characters 1824–2024

Title

Potassium cycling in Helianthus : ions of the xylem sap and secondary vessel formation

M. J. Canny Philosophical Transactions of the Royal Society B Biological Sciences 1995. doi:10.1098/rstb.1995.0081

Other claims from this paper (10)

Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Night-time stomatal conductance should be measured in future studies.

Taxon: Lupinus angustifolius and Eucalyptus globulusLupinus angustifoliusEucalyptus globuluse2
Outcome: night-time stomatal conductancee3

Verbatim

e2
“We compared the advection-diffusion model to previously published data sets for Lupinus angustifolius and Eucalyptus globulus”
✓ located verbatim in the source · abstract, characters 460–585

e3
“It became clear from our analysis that night-time stomatal conductance should be measured in the future and that the temperature dependence of the tracer diffusivities should be accounted for”
✓ located verbatim in the source · abstract, characters 932–1123

Title

Modelling advection and diffusion of water isotopologues in leaves

MATTHIAS CUNTZ; JÉRÔME OGÉE; GRAHAM D. FARQUHAR; et al. Plant Cell & Environment 2007. doi:10.1111/j.1365-3040.2007.01676.x

Other claims from this paper (8)

Method / resource The model agreed very well with observed bulk mesophyll water over the whole diel cycle.
Method / resource The model compared well with leaf enrichment at the evaporative sites during the day.
Method / resource The model showed some deviations at night for Eucalyptus globulus.
Method / resource Varying mesophyll water volume did not seem critical for a good prediction of leaf water enrichment in the data sets.
Method / resource Observations of single diurnal cycles do not seem to constrain the effective length of water path tortuosity in the mesophyll.
Recommendation The temperature dependence of the tracer diffusivities should be accounted for in the model.
Method / resource Simpler models of leaf water enrichment were suitable for applications of leaf water isotopes once weighted with the appropriate gas exchange flux.
Method / resource An unsuitable leaf water enrichment model could lead to large biases when cumulated over only 1 day.

“diffusivities”

Claim types

Direction of the findings

Over time

Claim type

Research area

Polarity

Statistics