Table 1 Calibrated genetic coefficients of Girana-1 cultivar within the model
Parameters | Definition | Genetic coefficients |
|---|---|---|
P1 | Thermal time from seedling emergence to the end of the juvenile phase (°C.d) | 420 |
P2 | Thermal time from the end of the juvenile stage to tassel initiation (°C.d) | 102 |
P2O | Critical photoperiod or the longest day length (in hours) | 13 |
P2R | Phasic development leading to panicle initiation (°C.d) | 90 |
PANTH | Thermal time from the end of tassel initiation to anthesis (°C.d) | 400.5 |
P3 | Thermal time from to end of flag leaf expansion to anthesis (°C.d) | 152.5 |
P4 | Thermal time from anthesis to beginning grain filling (°C.d) | 81.5 |
P5 | Thermal time from beginning of grain filling to physiological maturity (°C.d) | 490 |
PHINT | The interval in thermal time between successive leaf tip appearances (°C.d) | 49 |
G1 | Scaler for relative leaf size | 10 |
G2 | Scaler for partitioning of assimilates to the panicle (head) | 4 |