| Quantitative variables | Codes | Methods |
| Mean germination time (days) | GeTi | Notation of rhizome germination date at two-day intervals |
| Data taken at 5ème months of maximum growth | ||
| Number of leaves per plant | NuLe | Counting the number of leaves on a plant |
| Plant height (cm) | PlHe | Height from ground surface to V formed by last two leaves |
| Leaf length (cm) | LeLe | Measured from leaf tip to leaf base |
| Leaf width (cm) | LeWi | Measurement made at point of maximum width |
| Diameter at collar (mm) | DiCo | Measurement taken at the base of the stem |
| Number of rejet per plant | NuRe | Count all daughter plants that have emerged from the soil, |
| After harvesting | ||
| Length of thallus or rhizome (cm) | LeTh | Measurement taken from the tip of the rhizome to the base of the rhizome after harvesting. |
| Thallus or rhizome width (cm) | ThWi | Measured at the point of maximum rhizome width |
| Thallus or rhizome thickness (mm) | ThTh | Measurement taken at the thickest point of the rhizome |
| Rhizome finger length (cm) | FiLe | Measured from attachment point to base of rhizome |
| Rhizome finger width (cm) | FiWi | Measured at the point of maximum finger width |
| Rhizome finger thickness (mm) | FiTh | Measurement taken at the thickest point of the fingers |
| Length of secondary rhizome fingers (cm) | LsFi | Measured from point of attachment to base of rhizome |
| Yield (t/ha) | Yild | Rhizome mass gain |
| Yield per plant (g) | YiPl | Mass measurement of rhizomes from each harvested plant |
| Number of ramifications | NuRa | Counting the number of branches from the finger insertion point |
| Number of nodes | NuNo | Counting the number of knots per finger |