Table 1. List of definition of all the used abbreviations.

Nomenclature
Δq	[%]	Difference between canopy air and ambient absolute humidity
ΔRH	[%]	Difference between canopy air and ambient relative humidity
ΔTleaf	[°C]	Difference between canopy air and leaf temperature
ΔT	[°C]	Difference between canopy air and ambient temperature
eamb	[%]	Saturated vapour pressure at top of canopy
eamb	[%]	Vapour pressure at top of canopy
ei	[%]	Saturated vapour pressure at location i in canopy
ei	[%]	Vapour pressure at location i in canopy
HPS		High pressure sodium supplementary light
L	[m]	Length of single leaf
LA	[m−2]	Leaf area of single leaf
LAImax	[-]	Maximum leaf area
LAI	[-]	Leaf Area index
Nl	[#]	Number of leaves on a shoot
Ns	[#]	Number of shoots per plant
N	[#]	Number of leaflets of single leaf
PAR	[μmol m−2 s−1]	Photosynthetically active radiation
PD	[# m−2]	Plant density
qambient	[g kg−1]	Ambient absolute humidity
qcanopy	[g kg−1]	Canopy absolute humidity
Rinside	[W m−2]	Global radiation inside greenhouse
Routside	[W m−2]	Global radiation outside greenhouse
RHamb	[%]	Relative humidity at top of canopy
RHi	[%]	Relative humidity at location i in canopy
t0.5	[-]	Normalised time at which half of LAImax is reached
Tambient	[°C]	Ambient greenhouse temperature
Tcanopy	[°C]	Canopy temperature
Tleaf	[°C]	Leaf temperature
Tpipe	[°C]	Heating pipe temperature
W	[m]	Width of single leaf