| plot | | Physical quantity | plot: needs exact match with treatments, spcomp, stemdensity, ANPP tables |
| heat | | Physical quantity | heat: treatment designations (1 = control, 2 = level 2, 3 = level 3, 4 = level 4) |
| precip | | Physical quantity | precip: treatment designations (1 = control, 2 = drought) |
| subject | | Physical quantity | subject: number 1-40 |
| rep | | Physical quantity | rep: needs exact match with spcomp, stemdensity, ANPP tables |