Table 1.
Symbol, description, unit and value for model variables and parameters derived from experimental measurements and the literature
| Symbol | Description | Unit | Value | Source |
|---|---|---|---|---|
|
P
v, Pr |
Phyllochron of vegetative growth and reproductive growth | °C d | 45, 75 |
This study; Pan et al., 1997 |
|
A
l,max0, Af,max0 |
Maximum photosynthesis rate in high light for leaves and bracts | µmol CO2 m−2 s−1 | 25, 2.5 |
Stewart et al., 2010; Constable and Rawson, 1980b |
|
ε
l, εf |
Initial light use efficiency of leaves and bracts | µmol CO2 µmol−1 photons | 0.06, 0.04 |
Zhang et al., 2008; Constable and Rawson, 1980b |
| W r,max | Maximum obtainable biomass of root | mg | 20 000 | This study |
|
W
ml,max, Wvl,max, Wfl,max |
Maximum obtainable biomass per blade on main stems, on vegetative branches and on fruiting branches | mg | 1200, 800, 400 |
This study |
|
W
mi,max, Wvi,max, Wfi,max |
Maximum obtainable biomass per internode of main stem, of vegetative branch and of fruiting branch | mg | 2000, 1500, 500 |
This study |
|
W
s,max, Wb,max |
Maximum obtainable biomass per square and boll | mg | 500, 9500 |
This study; Constable and Rawson, 1980b |
|
T
r,e, Tl,e, Ti,e, Ts,e, Tb,e |
Growth duration of root, leaf, internode, square and boll | °C d | 1200, 600, 1200, 262.5, 787.5 |
This study; Ritchie et al., 2004; Constable and Rawson, 1980b |
|
T
r,m, Tl,m , Ti,m, Ts,m, Tb,m |
Time of maximum growth rate for root, leaf, internode, square and boll | °C d | 600, 300, 600, 131.25, 262.5 |
This study |
| T l,span | Lifespan of a leaf | °C d | 1200 | Pan et al., 1997 |
| R sla | Specific leaf area | cm2 mg−1 | 0.196 | This study |
|
R
v,sil, Rr,sil |
Specific internode length for main stems and vegetative branches, and for reproductive branches | cm mg−1 | 0.04–0.06, 0.12–0.18 |
This study |
|
R
s,dm, Rb,dm |
Ratio of diameter to dry mass of square and boll | cm mg−1 | 0.03, 0.005 |
This study |
| R CM | Conversion factor from dry mass to carbohydrate | mg CH2O mg−1 mass | 1.502 | Pan et al., 1997; Zhang et al., 2008 |
|
r
stem, rleaf, rfruit, rroot |
Maintenance respiration coefficient of stem, leaf, fruit and root | mg CH2O mg−1 mass | 0.006, 0.0264, 0.035, 0.038 |
Pan et al., 1997; Zhang et al., 2008 |
| K a | Transport coefficient | d−1 | 0.1 | This study |