| AW1 |
Available water above pwp in layer 1 (mm) |
| AWmax |
Available water at field capacity (mm) |
| D |
Atmospheric saturation deficit (kPa) |
| DAE |
Days after 50% emergence |
| DAR |
Days after last rain or irrigation (d) |
| DAS |
Days after sowing |
| Deficit |
Water amount required to fill layer 1 to FC (mm) |
| DR2 |
Drainage from layer 2 to layer 3 (mm d1) |
| dRF/dt |
Root front velocity (mm d-1) |
| Drrate |
Relative drainage rate (d-1) |
| EEQ |
Equilibrium evaporation (mm d-1) |
| ES |
Daily soil evaporation (mm d-1) |
| ESO |
Daily potential soil evaporation (mm d-1) |
| EVAPO |
Potential evaporation (mm d-1) |
| F_Root |
Daily fractional partitioning to roots |
| FC |
Soil moisture at field capacity (volume %) |
| Fi |
Fraction of radiation intercepted by leaves |
| Frs |
Fraction of seed material converted to plant biomass |
| GrainW |
Individual grain weight (g seed-1) |
| Growth |
Daily biomass assimilation (g m-2 d-1) |
| HI |
Harvest index; pod:shoot weight ratio |
| Himax |
Cut off point for maximum harvest index |
| K |
Light extinction coefficient |
| L |
Leaf area index |
| LeafW |
Leaf weight (g m-2 d-1) |
| LLG |
Radiation limited growth |
| LLP |
Daily light limited photosynthetic rate (g m-2 d-1) |
| LSR |
Leaf : shoot weight ratio |
| LSRi |
Initial value of LSR |
| MOISTi |
Initial soil moisture (volume %) |
| PodW |
Pod dry weight (g m-2) |
| POP |
Population density (plants m-2) |
| PWP |
Soil moisture at permanent wilting point (volume %) |
| RD |
Root density (m m-3) |
| Rlfactor |
Root length factor (g m-1) |
| RootL |
Total root length (m m-2) |
| RootW |
Root dry weight (g m-2) |
| ShootW |
Shoot dry weight (g m-2) |
| SLA |
Specific leaf area (m-2 g-1) |
| Stindex |
Stress index, genotype constant for stress tolerance |
| Stress |
Drought stress |
| Tbase |
Base temperature for crop development (°C) |
| Tfactor |
Photosynthesis correction factor for temperature |
| Tmax |
Daily maximum temperature (°C) |
| Tmean |
Daily mean temperature (°C) |
| Tmin |
Daily minimum temperature (°C) |
| Topt1 |
Lower optimum temperature for photosynthesis (°C) |
| Topt2 |
Higher optimum temperature for photosynthesis (°C) |
| TT |
Thermal time (°C d-1) |
| TTemerg |
Thermal time requirement for 50% emergence (°C d-1) |
| TT_pod |
Thermal time for pod initiation (°C d-1) |
| Umax |
Maximum relative water uptake rate (mmwater mm-1soil d-1) |
| Upot |
Potential transpiration (max uptake by roots) (mm d-1) |
| Uptake1 |
Actual water extraction by roots in layer 1 (mm d-1) |
| WLG |
Water limited growth |
| WLP |
Daily water limited photosynthesis (g m-2 d-1) |
 |
Radiation use efficiency (g MJ-1) |
 |
Transpiration equivalent (g kg kPa-1) |
 |
Actual soil moisture (volume %) |
