|     field |     type   |     contents / default value |     |
| duration | double | 100.0 | duration: total growing time |
| bpa | double | 1.0 | variable: bpa type: double |
| bpb | double | 1.0 | bpb: branch prob = bpa * exp(-bpb*ord) / nterm^bpc |
| bpc | double | 1.0 | variable: bpc type: double |
| firstSeg | object | RandomVariable | |
| bpow | object | RandomVariable | |
| growth | object | RandomVariable | |
| growthRateHist | list selection; boolean; one only | Profile | |
| branchingHist | list selection; boolean; one only | Profile | |
| termdiam | object | RandomVariable |