Results per trait

Summarised outcomes can be found as links in the 4 tables below. They are given for almost 100 traits, for 2-12 environmental factors per trait, the number depending on what has been published so far. The data will be updated regularly.

1. Anatomy & Morphology

LMA Leaf Mass per Area
LeaThi Leaf Thickness
VoFrMe Volumetric Fraction of Mesophyll in the leaf
VoFrPa Volumetric Fraction of Palisade parenchyma in mesophyll
VoFrAs Volumetric Fraction of Airspaces in the leaf
#PaCeLa # of Palisade Cell Layers
Ames/A Mesophyll cell Area / leaf Area
StoDen Stomatal Density
StoInd Stomatal Index
LeaDen Leaf Density
DrMaCo-S Dry Matter Content Stem
DrMaCo-R Dry Matter Content Root
InLeAr Individual Leaf Area
PlaHei Plant Height
SteDia Stem Diameter
SleInd Slenderness Index
SpStLe Specific Stem Length
IntLen Internode Length
#BraTil # of Branches or Tillers
SRL Specific Root Length


2. Chemical Composition

Ntot/A Total N content per unit leaf Area
[Ntot]L Total N concentration of the Leaves
[N]S N concentration of the Stems
[N]R N concentration of the Roots
Norg/A Leaf Organic N content per unit leaf Area
[Norg]L Organic N concentration of the Leaves
[C]L C concentration of the Leaves
[C]S C concentration of the Stems
[C]R C concentration of the Roots
C/N-L C/N ratio of the Leaves
C/N-S C/N ratio of the Stems
C/N-R C/N ratio of the Roots
[P]L P concentration of the Leaves
[P]S P concentration of the Stems
[P]R P concentration of the Roots
N/P-L N/P ratio of the Leaves
[NO3]L Nitrate concentration of the Leaves
[Mine]L Mineral concentration of the Leaves
[TNC]L Total Non-structural Carbohydrate concentration of the Leaves
[TNC]S Total Non-structural Carbohydrate concentration of the Stems
[TNC]R Total Non-structural Carbohydrate concentration of the Roots
SolSug/TNC-L Soluble Sugars as fraction of TNC in the Leaves
SolSug/TNC-R Soluble Sugars as fraction of TNC in the Roots
Chl/A Chlorophyll Content per unit leaf area
Chl a:b Chlorophyll a:b ratio
Chl/N Chlorophyll / Nitrogen ratio in the leaves
Car/Chl Carotenoids / Chlorophyll ratio
Xant/Chl Xanthophyll / Chlorophyll ratio
[SolPhe]L Soluble Phenolics concentration of the Leaves


3. Physiology

Abso Absorptance
Refl Reflectance
Trsm Transmittance
Rubi/A Rubisco amount or activity per unit leaf Area
Vcmax/A Vcmax per unit leaf Area
Jmax/Vcmax Jmax/Vcmax
ApQuYi Apparent Quantum Yield
Fv/Fm-n Fv/Fm during the nocturnal period (predawn)
Fv/Fm-d Fv/Fm during the diurnal period
Phot/A-sl Rate of Photosynthesis per unit leaf Area at saturating light
Phot/M-sl Rate of Photosynthesis per unit leaf Mass at saturating light
Phot/Chl-sl Rate of Photosynthesis per unit Chlorophyll at saturating light
Phot/A-gl Rate of Photosynthesis per unit leaf Area at growth light
Phot/M-gl Rate of Photosynthesis per unit leaf Mass at growth light
Phot/N-gl Rate of Photosynthesis per unit leaf Nitrogen at growth light
Trsp/A Whole-plant Transpiration rate per unit leaf Area
StoCon Stomatal Conductance at growth conditions
ci/ca Ratio of intercellular to ambient [CO2]
D13C 13C discrimination
iWUE intrinsic Water Use Efficiency
WUEg growth-based Water Use Efficiency
[WatPot-n| Water Potential during the nocturnal period (absolute values)
[WatPot-d| Water Potential during the diurnal period (absolute values)
ReWaCo-L Relative Water Content of Leaves
Resp/A-L Leaf Respiration rate per unit leaf Area
Resp/M-L Leaf Respiration rate per unit leaf Mass
Resp/M-L+S Shoot Respiration rate per unit Leaf plus Stem Mass
Resp/M-R Root Respiration rate per unit root Mass


4. Growth & Reproduction

RGR Relative Growth Rate
ULR Unit Leaf Rate
LAR Leaf Area Ratio
SLA Specific Leaf Area
LMF Leaf Mass Fraction
SMF Stem Mass Fraction
RMF Root Mass Fraction
ConCos-L Construction Costs of the Leaves
PaBaTi-L Pay-Back Time of the Leaves
VegBio Vegetative Biomass
PlaInd Plastochron Index
TiToFl Time to Flower
#SeeFru # of Seeds or Fruits
InSeMa Individual Seed Mass
GenBio Generative Biomass
RepEff Reproductive Effort


A more extended description is found in Poorter et al. (2010).
The classification and abbreviation of the traits follows Poorter et al. (2019).
(Note that up to 2018 saturating curves were fitted differently, with Y = a*X^b)